variable delivery hydraulic pump free sample

This invention relates to a variable delivery hydraulic pump and more particularly to a variable delivery hydraulic pump providing a housing having a suction and a discharge port, a variable control element, and a pumping element exerting pumping in contact with the variable control element so that the variable control element may be adjusted in displacement thereof to carry out the two pressure-two volume control of the pump.

A conventional variable delivery pump employs one pump to carry out two pressure-two volume control by setting the pressures Pm1 and Pc1 at the low and the high pressure lines respectively under the characteristics as shown by the curves A and B in FIG. 15, where not only the pressure Pc1 is hard to be set but also the fluid discharge amount Q1 corresponding thereto is liable to change following variation of the pressure Pc1, hence, the pump has such a defect as an unstable control from its fluctuant accuracy.

In such conventional pump, since the relief pressures (the maximum discharge pressure) PA and PB are high and the required horse power within the range of the above pressures Pm1 and Pc1 is large, the pump is also defective in more power loss and heat generation.

There has hitherto been suggested a pump aiming at eliminating the aforesaid defects by use of two hydraulic pumps having the characteristics as shown in the curve C at FIG. 15. The pump of this system, however, has the defects such that, first, the requirement of two pumps and further an unloading pressure control valve for setting the pressure Pm1 at the high pressure line as well, makes the pump expensive to manufacture and disadvantageous to be restricted in a space for use due to its wholly large-sized structure, and second, the pressure Pc1 set by the relief valve causes the pump to be more defective in power loss of heat generation compared with the former conventional control system.

The two pressure-two volume control system of the invention mainly adopts the combination of low pressure-large volume and high pressure-small volume control, which is described in that, for example, when an actuator is exerted with the hydraulic pump, there are three conditions such that rapid traverse of a tool attached to the actuator under the control of the low pressure-large volume characteristics in light load until the tool contacts with a workpiece, slow traverse under the control of high pressure-small volume characteristics in heavy load of machining the workpiece, and rapid return under the former control in light load when the tool restores after its work finish.

The invention aims at providing a variable delivery hydraulic pump controllable of the abovementioned two pressure-two volume system by means of a single pump, of which a main object is to provide a variable delivery hydraulic pump capable of exerting the aforesaid two pressure-two volume control by use of a single hydraulic pump, easy to settle each of the two pressures and two volumes, and accurate and stable in its each control.

Another object is to provide a variable delivery hydraulic pump automatically operable of the two pressure-two volume control following the change of load pressure, namely, the rapid traverse of tool under, for example, the control of the low pressure-large volume characteristics in light load prior to contact of the tool with the workpiece, can be automatically changed to the slow under that of the high pressure-small volume characteristics in heavy load of machining the workpiece.

Still another object is to provide a variable delivery hydraulic pump capable of exerting the two pressure-two volume control by means of changing a directional control valve, which pump is changeable by operating the directional control valve, for example, from the high pressure-large volume to the high pressure-small volume control characteristics.

A further object is to provide a variable delivery hydraulic pump operable under the two pressure-two volume control by being automatically changed following the load pressure variation and by being changed with the directional control valve as the abovementioned, that is, the pump of the so-called combination control of composite type.

Still a further object is to provide a variable delivery hydraulic pump optionally selective of the aforesaid control systems by use of a simply interchangeable valve block.

The invention has been designed to build up the pump provided with at least one pilot plunger and a control plunger, for adjusting the displacement of the variable control element; a first and a second spool for controlling the plungers in travels thereof towards the variable control element side, into each one end of which spools is introduced the fluid discharge pressure and at each of other end is provided a push member against a push of the spool from the discharge pressure respectively; and at spool chambers receiving spools therein respectively are formed control conduits which are opened when the spools travel against the push member"s biasing force so as to to be connected to either the rear chamber of the pilot plunger or the back chamber of the control plunger, thereby making it possible to carry out the two pressure-two volume control.

FIG. 1 is a longitudinal section of a variable delivery hydraulic pump of the combination control by system pressure, embodying the present invention,

FIG. 5 is a longitudinal section of the pump of the combination control by directional control valve, showing another modified embodiment of the invention,

Referring to the drawings, a swash plate type axial piston hydraulic pump is shown as a typical variable delivery hydraulic pump in accordance with the invention. The reference A designates a housing constituting a principal portion of the piston pump, accommodating the pumping element to be hereinafter described.

The drive shaft 5 carries a cylinder block 7 building up the pumping element through a spline coupling formed at substantially the intermediate portion of the shaft, the cylinder block 7 being rotatable together with the drive shaft 5 following the rotary torque therefrom.

The cylinder block 7 has a plurality of cylinders 7a axially extending and housing therein axially movable pistons 8 respectively. The pistons 8 have spherical heads insertibly engaged with shoes 10 held by retainers 9 respectively, through which shoes 10 the pistons are abutting against a swash plate serving as the variable control element.

The two pressure-two volume control includes; the combination control by system pressure, automatically changeable of the flow rate by variable discharge pressure from the pumping element, i.e., variable load pressure; the combination control by directional control valve, changeable of the flow rate by a control valve; and the combination control of composite type, combined with both the combination control by system pressure and that by directional control valve.

In greater detail, application of the control systems will be exemplified by the press work for pressing a workpiece with a punching tool attached to an actuator connected to the pump, as follows:

First, the combination control by system pressure is available for punching a workpiece such as rubbery material or a thick metal sheet because of being automatically changeable from the low pressure-large volume to the high pressure-small volume by means of load pressure alternation, that is, the punching tool is, in rapid traverse, brought into contact with the workpiece under the low pressure-large volume control, and upon rise of the load pressure (the discharge pressure) caused by the contact the pump is automatically changed to the high pressure-small volume control so that the tool may, in slow traverse, punch the workpiece.

The pilot plunger 24, which serves to settle the discharge amount in the pump characteristics under the high pressure-small volume and low pressure-large volume, is composed of a larger diameter portion 24a and a small diameter one 24b, the former dividing the back chamber into a front chamber b and a rear one k. The small diameter portion 24b is abutted at its tip against the back of the plunger 21 and the large diameter portion 24a is formed to be restricted in a given stroke from its travel towards the swash plate by a contact at the shoulder of the large diameter portion 24a with a stopper c which is formed at substantially the middle portion of the back chamber of the control plunger thereby enabling the control plunger to be axially moved in a regular stroke towards the swash plate 11. In addition, the small diameter portion 24b is provided at its outer periphery with a screw thread and an adjusting means 42 screwable therewith so that the pilot plunger 24 may, as shown in FIG. 3, be optionally controlled in its travelling stroke to thereby adjust the discharge amount at the small volume control. An adjuster 43 in contact at the tip thereof with the rear surface of the pilot plunger 24 is screwably mounted to the cover 2 for adjusting the stroke of control plunger, thereby adjusting the maximum slant angle of the swash plate 11, i.e., the maximum fluid discharge amount. The pilot plunger stroke adjustment may be carried out by means of a movable stopper c, also operable from the outside of the cover 2.

The aforesaid construction, which is principal to regulate the pumping characteristics under the two pressure-two volume control by adjusting the swash plate 11 slant angle, may be so formed that the biasing forces of the push members 30 and 31, the connection of the first and second control conduits 34 and 35, and that of the control guide conduits 38 and 39 communicating with the front chamber b and rear chamber k of the pilot plunger 24 at the back chamber of the control plunger 21, can be changed to perform the same control of the aforesaid feature and system.

First, the variable delivery hydraulic pump employing the combination control by system pressure for the two pressure-two volume control as shown in FIG. 2, will be described in accordance with FIG. 1, as follows:

In the pump"s running under the low pressure as shown by the curve C in FIG. 2, the swash plate 11 being the maximum at its slant angle and the discharge amount at the maximum Q2, the spool 22, as the aforesaid, begins to travel for rightward urging the control plunger 21 when the discharge pressure rises to reach Pm1, so that the swash plate 11 is reduced in its slant angle to yield the discharge amount Q1 and the pressure Pm2, the discharge amount Q1 depending upon the stroke of the pilot plunger 24. Its maximum stroke is defined by the travel of pilot plunger until the larger diameter portion 24a comes into contact with the stopper c at the front chamber b, where the pump is kept in the low pressure-large volume control until the discharge pressure becomes Pm1 as aforesaid, thereafter, the pressure rise permits the pump to automatically changed to the high pressure-small volume control.

In the pump operation under the high pressure-small volume control characteristics, the discharge pressure rises to the pressure Pc1 over the biasing force of the push member 31 relative to the spool 23, for example, at the final stroke of punching after completion of molding a workpiece in the press work, then the second spool 23 initiates to travel rightward against the push member 31, whereby the second control conduit 35 is opened to allow the fluid control pressure to enter the front chamber b: the back chamber of the control plunger 21, so that the plunger 21 may rightward be urged for minimizing the slant angle of the swash plate 11.

Incidentally, the directional control valve 62 is free to use any valve other than the solenoid one, in which the control signals may be electrical or hydraulic or the like.

The hydraulic pump constructed as aforesaid can optionally carry out the low pressure-large volume and the high pressure-small volume controls of the characteristics as shown in FIG. 6, the equivalent pressure-two volume control as shown in FIG. 7, or the high pressure-large volume and low pressure-small volume control as shown in FIG. 8.

In addition, the hydraulic pump shown in FIG. 5 can be controlled at the settled biasing force of the push member 31 when the directional control valve 62 is leftward moved to be changed, namely, the same is controllable under the high prressure-small volume control by means of the biasing force settled as the pressure Pc1 at the high pressure line.

In addition, in the construction shown in FIG. 5, the control of characteristic indicated with the curve E in FIG. 6 is so carried out that the directional control valve 62 is displaced reversely of its position in FIG. 5, and the rear chamber k of the pilot plunger 24 and the high pressure line conduit 37 are made to directly communicate with each other. In this control valve change, if the discharge pressure is, as aforesaid, over the sum of inclined moment of the swash plate 11 and the force of the spring 13, at the same time of the change is rightward moved the pilot plunger 24 so as to allow the swash plate slant angle to be decreased to approach the center position thereof, hence, the characteristics shown in the curve E of FIG. 6 may immediately be obtained, while, if under the sum, the pump is kept in the low pressure-large volume control characteristic until the discharge pressure overcomes the sum, thus the pump being controlled under the two pressure-two volume characteristic. The force of the spring 13 can, however, be designed smaller, and the distribution pipe resistance at the discharge line 36 and the actuator operation load connected thereto usually cause the pump to be controlled under the high pressure-small volume at the same time of change of the directional control valve 62, whereby the pump control is changed from the low pressure-large volume to high pressure-small volume, thus the two pressure-two volume control being performed.

Referring to FIG. 9, the construction of the control is that; the first control conduit 34 and the rear chamber k of the pilot plunger 24 communicate with each other through the guide conduit 38; the second control conduit 35 communicates through the guide conduit 39 with the front chamber b of the pilot plunger 24: the back chamber of the control plunger 21; on the way of the guide conduit 38 communicating with the first control conduit 34 is inserted a solenoid directional control valve 72; a first inlet port P1 of two inlet ports of the valve 72 is connected to the conduit 37 and a second inlet port P2 to the guide conduit 38 communicating with the first control conduit 34; and a first outlet port P3 of two outlet ports of the valve 72 is connected to the pump T and a second outlet port P4 to the guide conduit 38 communicating with the rear chamber k.

In this control system, the solenoid S1 at the right side in FIG. 9 is excited and the directional control valve 72 is set at the position shown in FIG. 9. Hence, the control conduit 34 at the low pressure line is directly connected to the rear chamber R of back chamber of the control plunger, and the conduit 37a communicating with the high pressure line conduit 37 is closed. The condition in FIG. 9 is the same as that in FIG. 1, in which the two pressure-two volume control of low pressure-large volume and high pressure-small volume, namely, the discharge pressure-flow rate characteristics shown by the curve C in FIG. 10, is automatically obtainable by the system pressure control through the process seen from FIG. 1 so that the pump may be controlled under the low pressure-large volume (P1, Q2) and high pressure-small volume (P2, Q1) at the curve C in FIG. 1, in which the low and high pressure P1 and P2 are as aforesaid optional to be set.

Hence, from the aforesaid operation, the pump can be changed from the low pressure-large volume to high pressure-small volume control at an optional pressure stage so as to be effectively applicable of machining the workpiece.

As is clearly seen from the aforesaid description, the hydraulic pump of the invention is capable of exerting with a single pump the two pressure-two volume control and is further precise and stable in setting the low and high fluid pressure thereof.

There are suggested, as the two pressure-two volume control system in the hydraulic pump, the three control systems: the combination control by system pressure automatical to act by load pressure alternation, the combination control by directional control valve employing the directional control valve"s operation, and the combination control of composite type combined of both the above systems.

Each of the control systems is desirably selectable in manufacturing process, however, the control system once selected to be assembled in the pump, should be restricted to this selected system only so that it is impossible for the pump in duty to select another system.

The control blocks 50, 60 and 70 are formed to be detachable mounted to one side of the valve block 25. The control blocks have at one side thereof ports which are as many as the ports of conduits at the one side of the valve block 25 and have the relation of being located in coincidence with the ports of conduits, so that the hydraulic pump of one of the control systems is completed by attaching any one of the control blocks to the valve block 25. Incidentally, being opened at the one side of the valve block 25, each of the conduits may be opened at one side of the housing body 1 or the cover 2.

Under these conditions, when the drive shaft 5 is rotated to work the pump the fluid of the maximum flow rate flows out from the discharge port 19 to the discharge line 36 so that the fluid discharge pressure may be introduced through the guide conduits 28 and 29 into the one end side of each of the spools 22 and 23 from the discharge conduit 19, the high pressure line conduit 37, and the first passage 51. Upon rise of the discharge pressure (load pressure) the spool 22, at first, travels rightward, the control conduit 34 opens into the spool chamber, the fluid control pressure is led to the rear chamber k from the conduit 34 through the second passage 52 and the control pressure introducing conduit 38, the pilot plunger 24 is rightward moved, and the swash plate 11 is decreased in its slant angle, thereafter, when the discharge pressure further rises, the spool 23 rightward travels to open the control conduit 35, and the control pressure is introduced therefrom into the front chamber b to rightward move the control plunger 21 thereby making minimum the swash plate slant angle. Thus, the pump can work under the automatic control of two pressures (P1, P2) and two volumes (Q1, Q2) as shown by the characteristic curves in FIG. 2, by means of the system pressure.

The pump running under these conditions leads the discharge pressure to the one end side of the spool 22, and upon rise of the pressure the spool 22 rightward travels to open the control conduit 34 from which the control pressure is introduced into the front chamber b of the back chamber of the control plunger 21 through the aforesaid low pressure line including the fifth passage 67, and the operating plunger is allowed to rightward travel so as to decrease the swash plate slant angle so that the discharge amount becomes zero at the low pressure Pm1 settled by the push member 30. In this instance, the control corresponds to the low pressure-large volume (Pm1, Q2) as shown by the curve D in FIG. 6. Next, the high pressure-small volume control (Pc1, Q1) as shown by the curve E in FIG. 6, can be carried out by directionally changing the control valve 62 reversely to the position in FIG. 13. The valve-changing permits the high pressure conduit 37 to be communicated through the first passage 63, the solenoid control valve 62 and the fourth passage 66, with the guide conduit 29 for the spool 23 and with the control pressure introducing conduit 38 connected to the rear chamber k; and the guide conduit 28 for the spool 22 communicates with the sump line 40 through the third passage 65, the solenoid control valve and the second passage 64.

Thus, the discharge pressure is introduced into the rear chamber k of the pilot plunger 24 as well as the one end side of the spool 23. At this time, when the discharge pressure exceeds the sum of the inclined moment of the swash plate 11 and the force of the spring 13, the pilot plunger 24 immediately rightward travels to reduce the swash plate slant angle thereby controlling the pump under the high pressure-small volume characteristic control. Upon a further rise of the pressure the spool 23 travels to control the pump at the maximum discharge pressure and zero discharge amount as shown by th curve E in FIG. 6.

In greater detail, the high pressure conduit 37, as the same as the circuit of high pressure-small volume control characteristic at the control valve system in FIG. 13, communicates with both the one end side of the spool 23 and the rear chamber k of the pilot plunger 24, to which the discharge pressure in the conduit 37 is applied. Hence, the discharge pressure over the sum of the force of the spring 13 and the inclined moment of the swash plate 11, causes the pilot plunger 24 to immediately rightward travel to decrease the swash plate slant angle to result in controlling the pump in the high pressure-small volume characteristics shown by the curve E in FIG. 6, thereafter. When the discharge pressure further rises until it exceeds the biasing force of the push member 31, the spool 23 travels to urge the member, and the control conduit 35 is opend to lead therethrough the fluid pressure to the control plunger 21 to be rightward moved so that the slant angle of the swash plate 11 is made zero at the maximum discharge pressure and so the discharge amount, where the fluid high pressure being also led into the control conduit 34 by dislacing the spool 22 through the guide conduit 28, the third port A of the control valve 72 is closed to make the spool 22 irrelevant to the circuit.

Accordingly, the housing and cover of the pump are usable in common with respect to any control block so that the variable delivery pump of the invention is easy in process and supervision to manufacture and also in product management, thereby becoming more economical and widely usable.

In addition, the swash plate type axial piston pump has heretofore been explained, but the invention is applicable for all other variable delivery hydraulic piston pumps and the same type vane pumps, in which a tilting yoke, eccentric ring or cam ring, serves as the variable control element.

Gear Pump – Small to Medium Displacement Sleeve, Hydraulic Bushing Pumps, 4.5 – 17 GPM. The 197 series bushing pump has a minimum operating speed of 600 rpm, continuous operating speed 2400 rpm. Drive shaft PL factor; Integral up to 10000, Continental 6000. Built from cast iron for robust applications. Single and multiple units are […]

Gear Pump – Medium Displacement Sleeve Bushing Pump. The 257 Series pump is a heavy-duty sleeve bushing design in medium frame size. Working Pressure up to 4500 psi. Cubic inch displacements from 1.29 through 6.43 with speeds up to 2400 RPM and flows up to 65 GPM. The bushing pump is also available with outboard bearing options […]

Large Gear Pump – Sleeve Bushing Design, Large Frame Size. A large displacement sleeve bushing pump, in a large frame size, with working pressures up to 3500 psi, cubic inch displacements from 1.80 – 9.00, speeds up to 2400 RPM and flows up to 93 GPM. The 360 Series cast iron gear pumps are primarily […]

Gear – Medium Displacement Roller Bearing Gear Pump, 5.5 – 28 GPM. The P5000/P5100 series is a medium displacement, roller bearing gear pump. This pump is a cast iron pump ensuring a strong and long-lasting product able to withstand robust applications. Single and multiple units are available upon request. The pressure loaded wear plates of […]

The Series AP product range includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves.

External Gear Pump, Aluminum, 4.4 – 27.1 Displacement cm³/rev. The AP212 family has made it possible to achieve high operating pressures, excellent volumetric and mechanical efficiency and on specially developed units (LN – Low Noise) even lower noise levels. This is made possible by: The new design of gear teeth and balancing areas Use of […]

External Gear Pump, Cast Iron, 15.1 – 34.1 Displacement cm³/rev. Maintaining all the basics AP212 project characteristics, the AP212HP series is improving the reliability of the complete product, strongly increasing the mechanical resistance of the pump body. This important feature, reached through the use of cast iron material and dedicated body shape, allows the life […]

External Gear Pump, Aluminum, Single and Multiple, 40.0 – 75.0 Displacement cm³/rev. The product range of  SpA includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves. Gear Pumps […]

External Gear Pump, Aluminum, 27.0 – 93.0 Displacement cm³/rev. The Series AP product range includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves. External gear pumps are widely […]

External Gear Pump, Cast Iron, Single and Multiple, 40.0 – 75.0 Displacement cm³/rev. The product range of SpA includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves. Thanks […]

Aluminum-Body, Low-Power, Oil-Operated Pumps for Auxiliary Services, 1.1 – 8 Displacement cm³/rev. The Pumps Series A 1P gear pump usually consists of a gear pair supported by two aluminum bushes, a body, a securing flange and a cover. The shaft of the driving gear projecting beyond the flange mounts a twin – lip seal ring […]

Cast Iron Flanges, Aluminum Body, High-Performance Single Pumps, 1.4 – 87 Displacement cm³/rev. The Pumps GHP are high-performance single gear pumps with an aluminum body, and a cast iron flange and cover. Displacements range from 1.4 up to 87 cc/rev (Group 1, 2 and 3). Available in different configurations (European, SAE, German standard) in a […]

Aluminum-Body, Low-Power, Oil-Operated Pumps for Auxiliary Services, 1.4 – 200 Displacement cm³/rev. The Pump ALP Series (where groups named ALP1, ALP2, ALP3, and ALP4) are suitable for the most different application in both industrial and mobile sectors. Produced in four different groups. Within each of them, the different displacements (between 1.4 and 200 cm³/rev) are […]

High-Pressure, Short Multiple Pumps,1,4 -35,2 Displacement cm³/rev. The ALPC & GHPC pumps are well designed to fit applications where multiple pumps are required to be driven by just one motor and space is too narrow for standard multiple pumps. Available displacements vary from 1.4 to 13.8 cm3/rev for group 1 and from 4.5 to 35.2 […]

Variable Displacement Axial Piston Pump, Pressure Rating of 6,090 psi. The C Series Variable Displacement Axial Piston Pumps are engineered for heavy-duty mobile equipment applications. Pumps offer a pressure rating of 6,090 psi, durable construction and a compact footprint. C Series variable displacement piston pumps have been designed for use in closed circuit hydrostatic applications. […]

Fixed Cast Iron Gear Pump, Integrated Relief Valve, and Load Hold Valve, 5,1-6,4. Displacement. The C101/C102 series combination pump valves (fixed gear pump) provide the most reliable, trouble-free performance in the industry for the dump truck and trailer applications. Operating pressures up to 138 bar (2,000 psi) speeds up to 2,400 rpm, flows up to […]

Fixed Aluminum Gear Pump, 1.87-10.50 cc/rev Displacement. The Aluminum Pump D Series fixed displacement gear pump offers high performance and high power density due to its aluminum construction, making it an ideal selection for the Aerial, Agriculture, Construction, Forestry, Material Handling, and Turf Equipment markets. It is available as a standard pump or a pump […]

Axial Piston Fixed Displacement Hydraulic Motor – Large Frame. The F12 hydraulic motor series has operating pressures up to 480 bar (7,000 psi) and speeds up to 7300 rpm. The F12 motor is a robust design motor and can be used in numerous applications in both open and closed loop circuits. Sizes from 30-250cc. The […]

Fixed Cast Iron Gear Pump, Integrated Relief Valve, and Load Hold Valve, 5,1-6,4. Displacement. The  G101/G102 fixed displacement gear pumps offer high performance and high endurance due to its cast iron construction, making it an ideal selection for the Vocational & Municipal Equipment market. It is available as a standard pump with an integrated valve […]

Fixed, Two-Piece, Cast Iron, 23-80cc. Displacement. These truck gear pumps are ideal for operators of light trucks for their hydraulic power needs. The Cast Iron Pump GP1 Series fixed displacement gear pump offers high performance and high power density dues to its two-piece cast iron construction, making it an ideal selection for the Aerial and […]

Low Noise, Low Ripple, High-Efficiency, High-Pressure Gear Pumps, 7 – 200 Displacement cm³/rev. ELIKA® pumps are extremely silent gear pumps that can be applied in situations where low noise levels are required. Using a low noise ELIKA® gear pump will eliminate harmful noises for persons and their surroundings. ELIKA® gear pumps are fully interchangeable with […]

Double Pumps and Multiple Pumps, 7 – 35 cm³/rev. ELIKA, being low-noise and low-ripple, ELI2 Multiple Series Gear Pumps is a perfect fit for all those applications that require low noise levels. The use of ELIKA gear pump eliminates adverse noise effects on humans and on the surrounding environment. The ELIKA reduces the noise level […]

Pumps with Flange and Cover in Cast Iron, 1,4 – 87 cm³/rev Displacement. These range of products have a new series of pumps named GHP, where groups named GHP1, GHP2, and GHP3 are suitable for the most different application in both industrial and mobile sectors. Available in different configurations (European, SAE, German standard) in a […]

Gear Pump, High-Performance Version, Hydraulic Drive, 6 (1.5) GPM. The GP0 gear pump with displacements up to 3,2 cm³ (0.20 inch³), Pmax 260 bar (3800 PSI), Speed from 500 to 8000 RPM. Flange, cover, and body are made of a high-quality aluminum alloy. These pumps are characterized by high-efficiency and low-noise levels through the entire rotation […]

Gear Pump, Light-Line Version, Hydraulic Drive, 6 (1.59) GPM. The GP0L Fixed Displacement gear pump, with displacements up to 2 cm³ (0.12 inch³), Pmax 250 bar (3600PSI), and speeds from 500 to 7000 RPM. Technical Features: Operating pressure 200 bar, Peak pressure 250 bar Cost-Effective design or circuits with a lower operating pressure High-quality aluminum alloy […]

Gear Pump, High-Performance Version, Hydraulic Drive, 21 (5.55) GPM. The GP1 gear pump with displacements up to 31 cm³ (1.89 inch³), Pmax 310 bar (4500 PSI), and speeds from 500 to 4000 RPM. Technical Features: Operating pressure 280 bar, Peak pressure 310 bar High-strength quality aluminum alloys pump with axial play compensation Low noise level […]

Fixed, Aluminum, 8-19cc., Displacement. These truck gear pumps are ideal for operators of light trucks for their hydraulic power needs. The Aluminum Pump GPA Series fixed displacement gear pump offers high performance and high power density dues to its aluminum construction, making it an ideal selection for Truck applications. The GPA/GP1 series gear pumps are […]

Gear Pump, High-Performance Version, Hydraulic Drive, 67 (17.65) GPM. The GP2 gear pump with displacements up to 31 cm³ (1.89 inch³), Pmax 310 bar (4500 PSI), and speeds from 500 to 4000 RPM. Technical Features: Operating pressure 280 bar, Peak pressure 310 bar High-strength quality aluminum alloys pump with axial play compensation Low noise level […]

Fixed, Aluminum, Pressure-Loaded Gear Pump, 9.88 – 36.50 cc/rev Displacement. Aluminum Pump H Series fixed displacement gear pump offers high performance and high power density due to its aluminum construction, making it an ideal selection for the Aerial, Agriculture, Construction, Forestry, Material Handling, and Turf Equipment markets. It is available as a standard pump, a […]

Gear Pump, Light-Line Version, Hydraulic Drive, 65 (17.17) GPM. The GP2L gear pump with displacements up to 30 cm³ (1.83 inch³), Pmax 300 bar (4350 PSI), and speeds from 400 to 4000 RPM. Technical Features: Operating pressure 270 bar, Peak pressure 300 bar Cost-effective design or circuits with a lower operating pressure High-quality aluminum alloy […]

Gear Pump, High-Performance Version, Hydraulic Drive,177 (16.76) GPM. The GP3 gear pump with displacements up to 100 cm³ (6.10 inch³), Pmax 320 bar (4600 PSI), and speeds from 350 to 3200 RPM. Technical Features: Operating pressure 290 bar, Peak pressure 320 bar High-strength quality aluminum alloys pump with axial play compensation Low noise level in […]

Gear Pump, Light-Line Version, Hydraulic Drive, 177 (46.76) GPM. The GP3L gear pump with displacements up to 71 cm³ (4.30 inch³), Pmax 280 bar (4060 PSI), and speeds from 400 to 3500 RPM. Technical Features: Operating pressure 250 bar, Peak pressure 280 bar Cost-effective design or circuits with a lower operating pressure High-quality aluminum alloy […]

Fixed, Tandem Pressure-Loaded Gear Pump, 30.18/10.5 cm³/rev Max. Displacement. The Aluminum Pump HD Series fixed displacement gear pump offers high performance and high power density dues to its aluminum construction, making it an ideal selection for the Aerial, Agriculture, Construction, Forestry, Material Handling, and Turf Equipment markets. It is available as a standard pump, a […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 17 to 28 cm³ (1,04 to 1,71 in³), Continuous 280 bar (4060 psi), Pressure Intermittent 300 bar (4350 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM P1A are designed to operate in a closed circuit. The available control systems make it easy to use these […]

Double Stage Pumps with Unloading Valves, 1st Stage- 1,4 – 4,1, 2nd Stage – 4,1 – 13,8 cm³/rev Displacement. The 1HL, 1PHL, and 2HL High/Low hydraulic gear pumps are special double-stage pumps with special integrated valves. The first stage, low displacement, high pressure. The second stage, high displacement, low pressure. RPM pump range 1,000 to […]

Gear Pump, Light-Line Version, Hydraulic Drive, 16 (4.31) GPM. The GP1L fixed displacement gear pumps, with displacements up to 8 cm³ (0.49 inch³), Pmax 270 bar (3900 PSI), and speeds from 600 to 6000 RPM. Technical Features: Operating pressure 230 bar, Peak pressure 270 bar Cost-effective design or circuits with a lower operating pressure High-quality […]

Variable Displacement Pump for Closed Loop Operation, Displacement 54.7 to 281.9 CC/Rev, Max. Operating Speed 2400 RPM to 3900 RPM, Max. Pressure 500 Bar, Nominal Pressure 450 Bar, Power Take-Off (PTO) Flange, Internal Gear Pump (IGP) and External Gera Pump (EGP) Available. The HPV-02 variable pump is an axial piston pump designed for high pressure […]

Fixed, Iron and Aluminum Gear Pump, 16-64cc, Displacement. The Iron and Aluminum Pump P16 Series fixed displacement gear pump offers high performance and high power density due to its part aluminum construction. The P16 fixed displacement gear pump offers a combination of high performance and lightweight due to combining a rugged cast iron pumping section […]

Variable Displacement Axial Piston Pump, Operating Pressure of 4,060. Variable, swashplate piston pumps designed for operation in open circuit, mobile hydraulic systems. The perfect choice when it comes to cost-saving installation as well as high productivity and power density. Displacement from 60 to 145 cc/rev. The P2/P3 Series has been designed to meet the specific […]

Medium Pressure Super Charged Pumps, Pressure Rating 3,000 psi. The PAVC Medium Pressure/Super Charged Pumps provide reliable high-speed operation. With a pressure rating of 3,000 psi, they are ideal for a variety of medium pressure mobile and industrial applications. Featuring a flexible, compact design, Pavc Medium Pressure Pumps deliver a reliable,easy-to-use solution for a wide […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 28 to 36 cm³ (1,71 to 2,20 in³), Continuous 280 (4060 psi), Pressure Intermittent 300 bar (4350 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM P1M is designed to operate in a closed circuit. The available control systems make it easy to use these pumps in […]

Bent-Axis Axial Piston Pumps, Fixed Displacement 10 | 12 | 16 cm³ (0,61 | 0,732 | 0,976 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 10 | 12 | 16 fixed displacement axial piston pump is designed to work in an open circuit. The system […]

Bent-Axis Axial Piston Pumps, Fixed Displacement 107 | 125 cm³ (6,63| 7,63 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 107 | 125 fixed displacement axial piston pump is designed to work in an open circuit. The system is designed in order to obtain 40° […]

Bent-Axis Axial Piston Pumps, Fixed Displacement 45 cm³ (2,75 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 45 fixed displacement axial piston pump is designed to work in an open circuit. The system is designed in order to obtain 40° angle of inclination of the […]

Bent-Axis Axial Piston Pumps, Fixed Displacement 56 | 63 cm³ (3,42 | 3,84 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 56 | 63 fixed displacement axial piston pump is designed to work in an open circuit. The system is designed in order to obtain […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 7 to 18 cm³ (0,43 to 1,10 in³), Continuous 250 | 230 bar (3625 | 3335 psi), Pressure Intermittent 280 | 250 bar (4060 | 3625 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM PO is designed to operate in a closed circuit. The available control systems […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 17 to 34 cm³ (1,04 to 2,07 in³), Continuous 280 bar (4060 psi), Pressure Intermittent 300 bar (4350 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM PS is designed to operate in a closed circuit. The available control systems make it easy to use these pumps […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 9+9 to 16+16 cm³ (0,55+0,55 to 0,97+0,97 in³), Continuous 280 bar (4060 psi), Pressure Intermittent 300 bar (4350psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM PX is designed to operate in a closed circuit. The available control systems make it easy to use these pumps in any application for industrial and […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 7 to 18 cm³ (0,43 to 1,10 in³), Continuous 250 | 230 bar (3625 | 3335 psi), Pressure Intermittent 280 | 250 bar (4060 | 3625 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM PZA have been designed to operate in a closed circuit. The available control systems […]

Variable Displacement Piston Pump, Operating Pressure of 4,060 psi. The PD Series pump offers variable displacement axial piston pumps for open-circuit applications. Featuring a compact footprint and continuous operating pressure of up to 4,060 psi, PD pumps provide quiet operation and efficient control. The PD Series of Open-Circuit Piston Pumps boost productivity in medium pressure […]

Bent-Axis Axial Piston Pumps, Fixed Displacement 80 | 90 cm³ (4.99 | 5,49 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 80 | 90 fixed displacement axial piston pump is designed to work in an open circuit. The system is designed in order to obtain […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 14 to 23 cm³ (0,85 to 1,40 in³), (Swashplate 14,5 | 19 | & 18), Continuous 250 bar (3625 psi), Pressure Intermittent 280 bar (4060 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HP P2 is designed to operate in a closed circuit. Control Systems are available […]

Closed Circuit Axial Piston Pumps, Variable Displacement , Max. Displacement from 17cc to 34 cc, SAE B Flange, (Swashplate 18 | 19 | 18 | 18 | 18°), Pressure Intermittent 300 (bar), 4350 (psi). The axial piston pumps series HP P4 34•46•50•58•65 is designed to operate in a closed circuit, for applications at medium pressure. Control […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 55 to 78 cm³ (3,35 to 4,76 in³), (Swashplate 16,3 | 17,3 | 17,7 °), Continuous 420 | 400 bar (6090| 5800 psi), Pressure Intermittent 450 | 420 bar (6525 | 6090 psi), (Power-Transmission Hydrostatic Transmission) The axial piston pumps series HP P6 series is designed to operate […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 82 to 125 cm³ (5,0 to 7,6 in³), (Swashplate 18,0, 16,5, 20,0°), Continuous 400 bar (5800 psi), Pressure Intermittent 420 bar (6090 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HP 8 82•100•125 is designed to perform in closed circuit for high pressure operations. The various control […]

Gear Pumps, Cast Iron Body, 4,cm³/rev. to 90,5 cm³/rev., up to 320 Bar. The HP Hydraulic series HPG (Series G) gear pumps are supplied in size group 2, 3 and 4. The series of products is even further completed with a full range of flanges, shaft ends, and available multiple pumps with or without valves […]

Gear Pumps, Fixed Displacement, Aluminum Body, 0,19 cm³/rev. to 88 cm³/rev., up to 310 Bar. The HP Hydraulic series L (HPL..0, HPL..1, HPL..2, HPL..2 SG Version, HPL..3, HPL..3 SG Version, HPL..4 SG Version) pumps have aluminum bodies and are suitable for a wide range of applications. Available in five different sizes: Group 0, Group 1, Group 2, […]

Fixed, High-Speed, Low Torque, Gerotor Pump, 16-64cc, Displacement. The Aluminum Pump PGG Series fixed displacement High-Speed Low Torque Gerotor pump offers high performance and high power density dues to its aluminum construction, making it an ideal selection for the Aerial, Agriculture, Construction, Forestry, Material Handling, and Turf Equipment markets. • Flows from .95 GPM to […]

Fixed, Cast Iron Gear Pump, Single, and Multiple, 16.2-64.6 cc/rev, Displacement. The PGP031 fixed displacement gear pumps offer high performance and high endurance due to its cast iron construction. • Flow range to 38.4 gpm (145.4 lpm) per section • Displacements from .985 to 3.94 cir (16.2 to 64.6 cc/rev) • Operating pressures up to […]

Swash Plate Variable Displacement Axial Piston Pump. The K3VG Series are variable displacement axial piston pumps of swash plate design for industrial equipment. The K3VG Series are available in size ranging from 63 to 560 cm³/rev with various control options including a highly precise electro-hydraulic servo regulator “ILIS”. Main features of the K3VG Series includes […]

Variable Displacement Swash Plate Design, Open Loop. The K3VL Series – medium pressure, open circuit, axial piston pumps are designed for mobile, industrial, and marine applications. The pump’s rotating groups are based on the proven design of the K3V and K3VG pumps. K3VL pumps are available in nominal displacements ranging from 1.71 to 12.20 in³/rev […]

Variable Displacement Swash Plate Design, Open Loop, Displacement 50 (cm³) to 150 (cm³). The K3VLS series are variable displacement axial piston pumps of swash plate design, suitable for use in mobile applications and industrial vehicles with medium pressure hydraulic systems. The K3VLS pumps enable flexible configuration in a wide range of applications with their compact […]

Low Noise Variable Displacement Axial Piston Pump. The K7V Series are variable displacement axial piston pumps of swashplate design, suitable for use in mobile applications. A long life is obtained by adopting large capacity of bearing and thicker shaft which reduces the load on the edge of bearing rollers. The power density if 1.5 times […]

Swash-plate Axial Piston Pump The K7VG high-pressure swashplate pump developed for general industrial machinery use and is based on long and rich experience. The adoption of the high-load bearing and friction-free contacting mechanism of shoes has achieved high reliability and long life. The unique compact rigid housing construction in addition to the semi-cylindrical swash-plate and […]

Variable Displacement Swash Plate Design, Closed Loop. The K8V series with a range in pump size from 71 to 130 cm3/rev are equipped with electric or hydraulic pilot displacement control. The K8V series pumps, having the integrated components required for a closed system, such as a charge pump, high and low-pressure relief valves, and a […]

Fixed Displacement Axial Piston Pump. The LX/LV series are fixed displacement axial piston pumps of bent axis design. They can operate for long periods of time under severe conditions. such as high-pressure continuous drive, use of fire-resistant fluids, ect. The series is suitable for the heavy duty application in press machine and steel making plants.

Gear – Small Frame, High-Pressure Bushing Gear Pump, 2.5 – 10.5 GPM. The P124 is a small frame hydraulic bushing gear pump with high-pressure capabilities, the 424 series has the same capabilities as the P124, but is capable of higher pressures. Cast Iron construction, built to with-stand robust applications. Compatible with mineral oil, water glycol, […]

Bent Axis Variable Displacement Axial Piston Pump. The LVP 017 Series are manual variable displacement axial piston pumps of bent axis design for high-pressure jacks. The bent axis type axial piston pumps have features such as high efficiency and long life. They can operate for long periods under severe conditions: high-pressure continuous drive, use of […]

Variable Displacement Axial Piston Pump The LXV/LZV series are variable displacement axial piston pump of bent axis design and have heavy duty bearings to achieve long life. They can operate for long periods of time under severe conditions: high-pressure continuous drive, use of fire-resistant fluid, etc.

Bent-Axis Axial Piston Pumps, Fixed Displacement 23 | 28 | 32 cm³ (1,4 | 1,71 | 1,95 in³), Continuous 350 bar (5075 psi), Pressure Intermittent 400 bar (5800 psi), (Power-Transmission Hydrostatic Transmission). The HM PF 23 | 28 | 32 fixed displacement axial piston pump is designed to work in an open circuit. The system […]

Fixed, Cast Iron Gear Pump, 16.2-64.6 cc/rev, Displacement. The 020 series fixed displacement gear pumps offer high durability & resistance to oil contamination due to their cast iron, roller bearing construction making them an ideal selection for the Vocational Truck, Winch, and Oil & Gas markets. They are available as single, or multi-section pumps. and […]

Fixed, Cast Iron Gear Pump, Multiple, 21-105 cc/rev, Displacement. The PGP051 fixed displacement gear pumps offer high performance and high endurance due to its cast iron construction. The 051 series fixed displacement gear pumps offer high durability & resistance to oil contamination due to their cast iron, roller bearing construction making them an ideal selection […]

Fixed, Cast Iron Gear Pump, Multiple, 50-202 cc/rev, Displacement. The PGP076 fixed displacement gear pumps offer high performance and high endurance due to its cast iron construction. • Flow range to 121.4 gpm (459.5 lpm) per section • Displacements from 3.07 to 12.3 cir (50 to 202 cc/rev) • Operating pressures up to 200 bar […]

Fixed, Cast Iron Gear Pump, Multiple, 50-202 cc/rev, Displacement. The PGP130 fixed displacement gear pumps offer high performance and high endurance due to its cast iron construction, making it an ideal selection for the construction equipment market in particular mini-construction equipment. Available with industry standard output shafts, ports and mounts, these pumps deliver up to […]

The 315 series fixed displacement gear pumps offer high-pressure durability due to their cast iron construction, making them ideal for high duty cycle mobile applications for the Construction, Forestry, and Oil & Gas markets. They are available as a standard pump, clutch pump, and tandem pump. • Flow range to 32 gpm (121 lpm) […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 21 to 37 cm³ (1,28 to 2,26 in³), (Swashplate 18°), Continuous 250 bar (3625 psi), Pressure Intermittent 300 bar (4350 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series M4 PV is designed to operate in a closed circuit. Control systems actually available are making easy to […]

Fixed, Cast Iron Gear Pump, Multiple, 21-105 cc/rev, Displacement. The 350 series fixed displacement gear pumps offer high-pressure durability due to their cast iron construction, making them ideal for high duty cycle mobile applications for the Construction, Forestry, and Oil & Gas markets. They are available as a standard pump, clutch pump, and tandem pump. […]

Variable Displacement Closed Circuit Axial Piston Pumps, Displacement 7 to 18 cm³ (0,43 to 1,10 in³), Continuous 210 bar (3045 psi), Pressure Intermittent 230 bar (3335 psi), (Power-Transmission Hydrostatic Transmission). The axial piston pumps series HM PLB is designed to operate in a closed circuit. Displacement range 7cc thru 18cc, R or L hand rotation, single […]

Fixed, Cast Iron Gear Pump, Multiple, 44-147.5 cc/rev, Displacement. The 365 series fixed displacement gear pumps offer high-pressure durability due to their cast iron construction, making them ideal for high duty cycle mobile applications for the Construction, Forestry, and Oil & Gas markets. They are available as a standard pump, clutch pump, and tandem pump. […]

Fixed, Aluminum, Gear Pump, 3.0 – 12.0 cc/rev, Displacement. The 505 series fixed displacement gear pumps offer cost-effective, high power density due to their aluminum, bushing block construction, making them ideal in a broad selection of markets such as Material Handling, Agriculture, Turf, as well as a variety of Industrial Applications. They are available as […]

Fixed, Aluminum, Gear Pump, 6.0 – 31.0 cc/rev, Displacement. The 511 series fixed displacement gear pumps offer cost-effective, high power density due to their aluminum, bushing block construction, making them ideal in a broad selection of markets such as Material Handling, Agriculture, Turf, as well as a variety of Industrial Applications. They are available as […]

Fixed, Aluminum, Gear Pump, 16 – 70 cc/rev, Displacement. PGP 517 pump offers superior performance, high efficiency and low noise at high operating pressures. The 517 series has a wide variety of standard options and is available to meet specific application requirements. • Sizes from 16-70cc • Operating pressures up to 250 bar (3,500 psi) […]

Fixed, Cast Iron, Gear Pump, 7-32 cc/rev, Displacement. The 610 series fixed displacement gear pumps offer the most volumetrically efficient and power dense solution due to their interlocking, two-piece cast iron design, making 600 series ideal for engineered mobile equipment solutions demanding energy efficient, high performing hydraulic systems. The 600 series is widely used in […]

Fixed, Cast Iron, Gear Pump, 19-50 cc/rev, Displacement. The 620 series fixed displacement gear pumps offer the most volumetrically efficient and power dense solution due to their interlocking, two-piece cast iron design, making 600 series ideal for engineered mobile equipment solutions demanding energy efficient, high performing hydraulic systems. The 600 series is widely used in […]

The self-regulating HPR-02 is a high perssure axial piston pump in a swash plate designed for open loop systems. With both clockwise and counter clockwise rotation, it is self priming at high nominal speeds.  It can reach a higher rotating speed by tank pressurization or swash angle reduction. It is a good fit for application […]

Fixed, Cast Iron, Gear Pump, 30-88 cc/rev, Displacement. The 640 series fixed displacement gear pumps offer the most volumetrically efficient and power dense solution due to their interlocking, two-piece cast iron design, making 600 series ideal for engineered mobile equipment solutions demanding energy efficient, high performing hydraulic systems. The 600 series is widely used in […]

Variable Flow, High-Pressure and High-Speed, For Open Circuits SAE, ISO, DIN), Continuous Pressure Rating up to 6,000 PSI, Intermittent Pressure Rating up to 7,250 PSI, Five Frame Sizes (80 cc – 260 cc), Maximum Speed of 2,550 RPM. The Premier Series features superior design and simplified maintenance; the Premier Series delivers high-pressure variable piston pumps […]

Variable Volume Displacement Piston Pump, Operating Pressure of 3,600 psi. The PVP Series provides durable variable volume piston pumps for medium pressure applications. With aa pressure rating of 3,600 psi and a wide range of controls, PVP pumps are efficient and reliable. The PVP Series is flexible and high-performing, resulting in increased uptime with fast […]

Axial Piston Variable Pumps, Operating Pressure Up to 420 bar. The PVplus (PV+) is an open circuit, variable swashplate piston pump. Optimized for heavy-duty industrial and marine applications. Operating pressures of up to 420 bar, high-speed ratings, a wide range of highly responsive controls, and a displacement from 16 to 360 cc/rev. The PVplus (PV+)  provides […]

Fixed Displacement, Single or Double Medium Pressur Vane Pumps. The SDV Series is a fixed displacement vane pump, ideal for low to mid pressure applications up to 2250psi. The double pump provides the flexibility of two different displacements within one housing. The single pump provides one displacement within one housing. The compact design and low […]

Axial Piston Fixed Pump, Operating Pressure of 5,000 psi and Speed Up to 350 bar. The T1 hydraulic truck pump series has operating pressures up to 350 bar (5,000 psi) and speeds up to 3200 rpm. The T1 pump has a robust design that provides circuit reliability for the most demanding truck applications, displacement 81 and […]

Small to Medium Displacement Vane Pump. The EVO vane line is both versatile and ruggedly built for the toughest applications. The PT6C Series is a small to medium displacement vane pump, with a maximum psi of 4000. The PT6C is very mobile, it is lightweight with a phosphate coating. The PT6C has a double lip […]

Medium Displacement Vane Pump. The EVO vane lane is both versatile and ruggedly built for the toughest applications. The PT6D Series is a medium displacement vane pump, with a maximum psi of 4060. The PT6D Series is perfect for mobile or industrial use with a phosphate coating. The PT6D is perfect for applications that need double lip […]

Medium Displacement Vane Pump. The EVO vane line is both versatile and ruggedly built for the toughest applications. The PT6E series is a large displacement vane pump. The PT6E series has a large displacement, uni-rotational plates, and phosphate coating, making the PT6E series ideal for applications involving roll-off, snow and ice control, and low boy/transfer trailers.

Medium Displacement Vane Pump. The EVO vane line is both versatile and ruggedly built for the toughest applications. The PT7D series is a medium displacement vane pump, with a maximum psi of 4060, and higher pressures and speed. The PT7D series 12 vane technology makes it ideal for industrial uses. The phosphate coating and bi-rotational […]

Gear Pumps, Silent, Cast Iron, Displacement from 6,1 cm³/rev. up to 25,6 cm³/rev., Pressure up to 320 Bar. The HPX PA2 Cast Iron gear pumps are specified with helical teeth and a special finishing process that significantly reduces hydraulic pulsation of the oil flow, resulting in lower noise levels and consequently recommending them as the […]

External Gear Pump, Aluminum, 1.2 – 10.0 Displacement cm³/rev. The Series AP product range includes single pumps 05-100-212-212HP-250HP-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves.

Variable-Displacement Axial Piston Pump with Fast Control Response. The PVG is a variable-displacement, axial piston pump with fast control response. The PVG thrives on low viscosity fluids and is available in a variety of control and porting options. It is designed to be a high-performance solution for demanding applications. PVG open loop, axial piston hydraulic […]

Variable Axial Piston Pump with Longitudinal Controls The PVK pump line consists of three sizes of variable-displacement, open-loop, axial-piston pumps. The PVK is unique from other variable pumps because it has longitudinally-mounted controls. It is recommended that legacy PVK pumps be replaced by the current PVG pump line. Available in two frame sizes and three […]

A Versatile Pump with a Modular Design. The PVM line of variable-displacement, axial-piston pumps is designed to adapt to your most demanding applications. Virtually indestructible, the modular PVM open-loop, axial-piston hydraulic pumps offer advanced engineering at an affordable price. Computer-optimized and with multiple controls available, PVM pumps deliver high performance in a compact design. Available […]

The Flagship, High-horsepower Variable Displacement Pump. The PVV line pumps represents the pinnacle of performance in a variable-displacement, axial-piston pump. Designed for power and speed, PVV open-loop, axial-piston hydraulic pumps by delivering the punch that is required for large, heavy-duty systems. Utilizing advanced engineering, the PVV pump line delivers up to 560 horsepower – four […]

Dump Pump, Gear Pump, 80 cc/rev, Displacement. The SG102 Dump Pump is part of the family of Commercial Hydraulics truck pumps. Building upon the technology of the industry standard C102/G102 pumps, the innovative SG102 Dump Pump provides a 37% faster-dumping cycle versus the standard G102. The pump is designed to fit where space is limited, […]

High Pressure Internal Gear Pump, 4,8 – 402,6 Displacement cm³/rev. The QX pumps are the 5th generation of internal gear pumps, which have proven themselves in thirty years of service around the world. The straightforward and rugged construction guarantees long service life without the need for extensive maintenance. Tandem and multiple pumps are available worldwide […]

Internal Gear Pump – up to 280 bar with One Gear Stage, 10,0 – 160,5 Displacement cm³/rev. Energy-efficiency and productivity for fixed – and variable-speed drives. The QXEH series consists of single-stage pumps for both constant and variable speeds. Thanks to the use of high-precision gear parts with a pinion shaft (pinion and shaft as […]

Internal Gear Unit for Motor/Pump Service, 5,1 – 248,8 Displacement cm³/rev. For applications requiring a variable-speed multi-quadrant operation, there is now a special version: The QXEM internal gear drive unit. The QXEM series consists of single-stage motors for constant and variable speeds. Thanks to the use of high-precision gear parts with a pinion shaft (pinion […]

Internal Gear Unit for Motor/Pump Service, 5,1 – 498,5 Displacement cm³/rev. The QXM drive unit can be used in open- and closed-loop hydrostatic drives and can operate both as a pump and as a motor. This flexibility offers possibilities for various applications, one example being the raising and lowering of loads. The QXM works as a […]

Metering Pump for Polyurethane Production, 3,3 – 498,5 Displacement cm³/rev. The QXP is an internal gear pump for metering isocyanates, polyols, additives and other fluids. Combined with a variable-speed drive, the QXP is being applied very successfully as a metering pump in the production of polyurethane. The QXP’s simple and robust design makes this pump […]

Internal Gear Pumps, For Low-Viscosity Fluids, 5 – 500 Displacement cm³/rev. The QXV is an internal gear pump for low viscosity. It can develop pressures of 250 bar with high efficiency at viscosity of around 1 mm²/s. The QXV is being used with great success to pump aviation jet fuels, paraffin oil/kerosene, brake fluids, Pentosin and […]

The Closed-loop Pump for Low-viscosity Fluids. Rugged and tough,  PVWC closed-loop, hydrostatic, axial-piston hydraulic pumps offer low horsepower for high-performance applications. The PVWC pump combines quiet operation, high efficiency and competitive pricing in a compact design. Capable of operating with low-viscosity or other special fluids, and with excellent contamination resistance properties, PVWC pumps feature a […]

Variable Displacement Cost-effective, Rugged Pump. The PVWJ is a variable-displacement, axial-pistol pump with medium control response. It thrives on low viscosity fluids and is available in a variety of control and porting options. The PVWWJ open loop, axial piston hydraulic pumps  are uniquely designed for enhanced stability and less maintenance in low to medium horsepower […]

Variable Displacement Pump for Ultra Low-lubricity Applications. The PVWW line of pumps provides excellent variable-displacement pumping with fluids with a high water concentration. The PVWW is available with a variety of control modules. PVWW open-loop, variable-displacement, axial-piston hydraulic pumps are uniquely designed for low-lubricity, low-viscosity applications, such as pumping water-based, and environmentally-friendly fluids. Available in […]

Mobile Hydraulic Vane Pump. The T6*M Series are Hydraulic mobile vane pumps that reduce size and cost of actuators, valves, and lines and extend working life, support by pressure ratings of up to 275 bar. Hydraulic mobile vane pumps are optimized for mobile applications The high-pressure design reduces installation costs and provides extended life at […]

Hydraulic Mobile Pump, For Cardan Mounting. Hydraulic mobile pump T6CCZ series is specially designed for Cardan mounting. The double row ball bearing and a needle bearing double the permissible radial load compare to standard version capability. The hydraulic mobile pump T6CCZ series reduces installation costs and provides extended life for Cardan mounting. The T6CCZ pump […]

Gear Pumps, Silent, Aluminum, Disp