servo motor hydraulic pump pricelist

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ABT Series Servo Pump is high performance servo hydraulic system special oil pump. It is researched and developed together by three party- Ningbo Vicks Hydraulic Co., Ltd. American Albert Fluid Power Co., Ltd. Zhejiang University Mechanical Control Engineering Research Institute. The core components are imported from America. We have the proprietary intellectual property hydraulic systems of rubber and plastic machines, shoes machines, forging and press machines, bending machines and shearing machines.

2.se outside leakage and leakage volume control designation low the oil temperature obviously. Based on the hydraulic components leakage volume, can adjust the oil leakage smartly, the pump pressure pulse is small at high pressure and low speed, the injection finished products will be more higher accuracy.

3.With the coordination of high pressure oil and vice spring structure, can make the pump run normally at low speed, can fit low and high speed shift, high and low pressure speed shift, right and left rotation shift etc working status of servo hydraulic system perfectly.

1.Pump housing design with Rc3/8 leaked oil port, the leaking oil must through the port back to oilbox, do not blocking, or will cause the shaft seal damage.

2.Following photos instruction, Leakage of oil pipeline must be upward arrangement, make the sliding bearing in the pump shaft center in the leaked oil dip full lubrication.

A servo motor is an actuator that allows for precise control of angular position in automatic control system. It also requires a servo drive to complete the system. The drive uses the feedback sensor to precisely control the rotary position of the motor. Compared with other motors, such as stepper motors and AC induction motors, what are the advantages of servo motors?

The servo motor has strong resistance to overload, and can withstand three times the load of rated torque. It is especially suitable for the occasion of instantaneous load fluctuation and fast starting.

The servo motor runs smoothly at low speed, and it does not produce the step running phenomenon similar to stepper motor. It is suitable for situations with high speed response requirements.

ATO AC servo motors give you unprecedented choice and flexibility from a wide range of standard products power rating from 50w to 7.5kw, so you can select the best servo motor with lower price for your application.

Note: The AC servo motor prices listed in the table are just for your reference, they may be different with the selling price. Please go to the servo motors product page for the latest quotation.

Baumüller supplies innovative and optimized drive solutions for all sectors through years of intensive cooperation with mechanical engineers. Due to the integrated control unit in the converter, Baumüller servo pumps can easily be connected to your machine control systems. In the process, they reduce the energy consumption of your drive system significantly and also allow for shorter cycle times, greater accuracy as well as lower noise development. See for yourself and rely on the flexibility and power of innovation of the experts from Baumüller.

Servo pump drives for the hydraulic supply consist of a fixed displacement pump driven by a servo motor. The flow rate and pressure can be controlled precisely by highly dynamic changing of the motor speed. If neither flow rate nor pressure are required, the motor stops and does not consume any energy.

These production steps are highly differentiated, meaning that within one process step the injection molding machine has widely fluctuating output requirements. Closing and injection sequences require large quantities of hydraulic oil and a high volumetric flow. Cooling times, on the other hand, require no or just minimal output.

The difference in energy consumption can be clearly seen in the typical hydraulic system shown in the diagram. The high energy efficiency of the servo-hydraulic solution arises from a needs-specific pump output. When the machine is at rest, e.g. during cooling, then the motors will also be at rest and will consume no energy.

An additional example is presses. The cycle in the figure is divided into three partial cycles: lose press (compacting the material), dwell time, press back and handling. The comparison of energy consumption between the three different systems shows that the solution with a servo pump in the individual partial cycles has a significantly lower power input and thus has a significantly lower energy consumption overall. Unlike conventional hydraulic systems, only the energy that is actually needed is used, while in the classic systems the losses are higher due to the constant revolution of the standard motor in rest phases, such as when stopped (see figure).

Injection molding machines and presses are not the only applications for servo-motor pumps. The use of a servo-hydraulic system is a sensible option wherever phases with high power requirements alternate with pause times in the machine cycle, such as in stamping and bending machines.

The advantages of hydraulic power transfer and electric power setting using servo technology combined, as an alternative to hydraulic pressure and volumetric flow control, yields an energy-efficient and cost-effective solution in the form of a dynamically controllable servo pump.

As a special feature, Baumüller offers three different options for the connection between the pump and the motor. In the Standard Line, the attachment is made using the conventional solution of coupling and pump support. This tried-and-tested option can be achieved with a standard motor shaft and motor flange and is flexible due to the separate components. The second development stage, the Advanced Line, designates the direct attachment of the pump on the motor via internal toothing. Here, there is no need for a pump support and coupling, so the system is more compact and robust. Omitting the pump support as a resonating body also reduces the noise impact.

In the third stage, the Performance Line, the hydraulic fluid is additionally used for intelligent circulating oil lubrication. For this purpose, connections were added not only to the motor but also to the fixed displacement pump, allowing the leakage flow of the pump to be used for the permanent lubrication of the toothing. This eliminates an otherwise necessary grease lubrication of the internal toothing, which would be due every 3,000 operating hours on average, also rendering the system particularly robust. Baumüller thus offers a patent-pending solution, which leads to significantly reduced service costs in operation.

Permanent magnet synchronous motors are used as motors in servo-hydraulic systems. The main criterion for selecting servo motors is good performance in terms of dynamics and overload capacity.

Baumüller offers various motor series for use in servo-hydraulic systems, from the dynamic three-phase current servo motor DSD2 to the three-phase current synchronous motor DS2. All motors are available in an air-cooled and a water-cooled version. Size 45–132 servo motors are also available in an oil-cooled form. This is an advantage in the hydraulic system, since the oil is available in the machine anyway. Another advantage is that liquid-cooled motors have a higher power density and can therefore be dimensioned smaller.

Direct attachment is available for the Advanced and Performance Line models. The following motor-pump combinations are possible. The Standard line, attachment via coupling and pump support is possible with all the motors listed here.

It"s probably obvious that the fully integrated design of ClearPath, by its very nature, will increase the ruggedness and reliability of your system. The most failure-prone element in all motion systems—the cabling—has been greatly reduced. In fact, the motor-drive cable, the most complex and troublesome cable, is altogether eliminated. But ClearPath has numerous design features, beyond the integration of the motor, encoder, drive and controller, that further enhance reliability. Read on to see how quality and reliability has been designed into every aspect of ClearPath, and you"ll see why we"re able to provide the longest warranty in the industry.

Every component in the construction of ClearPath motors has been carefully engineered using the highest quality materials, design, and manufacturing processes.

"Bonded" neodymium ring magnets (right) are made by mixing NdFeB powder with a plastic resin. ClearPath uses magnets made of virtually pure NdFeB that has been "sintered" into solid bricks (left). These sintered magnets are extremely powerful compared to the plastic bonded magnets. AC induction motors, which use electromagnets rather than permanent magnets, only have about 25% as much power as ClearPath for the same size motor.

The shaft diameter transition in all ClearPath motors is smoothly radiused. Motor shafts with abrupt diameter transitions (right) have severe internal stress concentrations that can cause their shafts to break when side-loaded.

ClearPath has a compression fit, aluminum housing surrounding the stator that provides a low-resistance path to conduct heat out of the motor and into the mounting suface (which typically acts as a big heat sink). This increases continuous power output and improves reliability. Many motors have no housing (exposed laminations) and so have a poor heat path to the mounting surface.

Drive and Motor Protection Features: Rugged design and construction is great for long life under tough conditions, but ClearPath also has many features that protect it from mishaps that might cause immediate death for other motors—reversed wiring, shorted inputs or outputs, voltage overloads, mechanical jams, etc. Here are some of the protection features built into every ClearPath motor:Input Protection: ClearPath’s control inputs are all optically isolated, and protected against damage from accidental reverse polarity wiring. They are also capable of sustaining a continuous overvoltage condition of up to 30 volts DC.

Operational Protection: Sometimes things go wrong in a motion system. The mechanics jam, the software or operator sets too high a speed or acceleration, the power supply drops out, and so on. ClearPath motors will reliably protect themselves against damage in these situations and more.A built-in thermal sensor keeps the electronics well within their safe operating temperature, and also ensures that the motor windings stay well below their rated maximum temperature of 200ºC (most motor windings are only rated for 135-155ºC).

If the average torque load exceeds the maximum capability of the motor, ClearPath will safely shut down, so there’s no need to worry about burning up a motor when something goes wrong with the mechanics.

In all these shutdown situations, ClearPath will dynamically brake the moving load. Other motors just freewheel when they shut down, allowing your mechanics to crash.

Every single ClearPath motor receives a full suite of in-line and post-production tests to assure you of the highest incoming quality. This includes testing for:Electromagnetic performance

Standard, built-in 64,000 count/rev encoder allows position control and exceptional (0.001%) velocity accuracy (fractional hp ClearPath motors are 12,800 count/rev).

In a conventional hydraulic system, a fixed-speed motor drives the pump that circulates the hydraulic oil from the reservoir to the hydraulic cylinder. To keep the oil circulating, the pump needs to run constantly, consuming energy even when the actuator is stationary.

Pumps in hydraulic systems are commonly driven by induction motors, which are inherently less efficient than the permanent-magnet motors used in servo designs. Induction motors have to draw current in order to generate the magnetic field required to get the rotor to turn. Their efficiency also decreases when they are run below their rated speed.

“An induction motor has a sweet spot and if you’re not running at that sweet spot, then you’re using excessive magnetizing current and creating heat,” says Ken Kerns, marketing manager for low voltage drives, Siemens Industry Inc. (Norcross, Georgia). Excess current draw costs money, and excess heat at minimum introduces cost and complexity in the form of thermal management and at worst can lead to early failure.

Of course, if you’re reading this article, you probably know about these problems firsthand. What you need is a solution. Hybrid electrohydraulic systems leverage the power density of hydraulics with the responsiveness and energy savings of electromechanical technology. Unlike the induction motors used in fixed-speed pumps, the permanent magnet motors used in servo pumps operate synchronously and without any latency. Even better, they run efficiently across a range of speeds. “With a servo pump, you don’t have to have continuously circulating hydraulic fluid,” says Kerns. “Basically, the motor comes on and runs when you need pressure, and with a much faster response time.”

This means that you’re not paying to operate the pump full speed when the hydraulic actuator is stationary. Indeed, analysis shows that a conventional hydraulic system will cost considerably more over time than a hybrid version using a servo pump (see figure 2).

The instant response delivered by servo motors enables the actuator to operate much more quickly and deterministically, making it a good fit for applications like punch presses. The solutions also involve less complex systems with smaller footprints while incorporating value-added devices like smart drives with real-time diagnostic capabilities (see figure 3). In the case of applications that would normally place the reservoir at a distance from the hydraulic cylinder, the use of a servo pump at the actuator can eliminate the need for long hydraulic hoses that are prone to leaks or breakage.

Applications like injection molding are perfectly positioned to benefit from the technology. Rubber injection molding processes, for example, require the pressure to be applied and then maintained at a set level for an extended period of time while the rubber fills all nooks and crannies of the mold. In the case of a system run by a fixed-speed pump, the motor would be running the entire time, consuming power and generating heat, even though it is only maintaining pressure. With a servo pump, the holding torque of the motor is sufficient to generate the required pressure. “Because you’re using permanent-magnet servo motors, there’s virtually no voltage on the motor,” says Raymond Seifert, director of application engineering, Baumueller Nuermont Corp. (Windsor, CT). ”As a result, even though you might have to maintain a holding current, the actual power that you’re using is minimal.”

Indeed, a calculation of energy consumption and cost for this application based on the duty cycle of the motor showed a clear advantage for the servo-driven design. “The customer was happy with the prototype and could justify the cost,” Seifert says. “They are now looking at retrofitting more machines.”

A new hybrid electrohydraulic press using a dual-pump design has been developed as an off-shoot of the servo-motor-driven pump technology. The approach allows bi-directional pumping of the hydraulic fluid, enabling the customer to reduce the size of the existing hydraulic press reservoir to nothing more than an accumulator in the hydraulic circuit. Fewer components and less oil means a smaller footprint, lower cost for the system, better products, less chance of leakage, and less money spent on both purchase and disposal of the hydraulic oil.

Of course, shrinking the volume of oil does increase the importance of thermal management. The smaller volume of oil means that it heats up more quickly. When the temperatures get too high, the pump can fail. To guard against this, the addition of auxiliary cooling in the hydraulic circuit may be necessary to ensure temperatures remain under control.

Servo pumps deliver benefits beyond just cost savings. The level of control provided by closed-loop feedback leads to more precise motion. In contrast, conventional hydraulic systems may not even use a drive, let alone feedback. They may simply use a motor with a simple on/off switch that runs at constant speed. The closed loop feedback of a servo pump equips the system to deliver the exact torque or speed required for the application, and do it instantly.

“Even if you use a drive with a standard induction motor, you still have an element of delay in getting that system up to a certain pressure,” says Kerns. “More often than not, you’ll see a hydraulic system that doesn’t even have a digital feedback loop, just a regular analog loop. The big benefits of the servo motor are the response time and the fact that you’re able to run those motors up to really, really high RPMs to get to where you need to be much quicker.”

This level of fine control can benefit applications like metalforming. When metal is deformed into a shape, it has to be slightly over bent so that it will assume the correct form after recoil. For best results, full force should only be applied in the last millimeter or two of motion. Servo pumps enable much more accurate control of the motion of the hydraulic actuator, creating better quality parts.

Although system cost and performance are important, the modern industrial environment imposes other challenges to machine design and operation. Particularly if you are involved in industries like automotive manufacturing, you face growing regulation for working conditions. Here, too, servo motors provide superior solution to conventional fixed-speed pump designs by virtue of their whisper-quiet performance. “When customers take the risk and make the change, their jaws just drop with how quiet their new machine is,” says Swinford. That performance is not just good for end-users but for OEMs, he notes. “I have one client who has kept their factory full for the last three years because their end users are so excited by the noise reduction that they keep ordering new machines just to replace the ones in the field. Most of them wind up having flashing lights on the machine to let customers know that the power’s on.”

As intriguing as the technology may be, it’s important to remember that the performance of the system is only as good as the design approach. “It’s not the kind of thing that you just kind of slap together,” Swinford says, citing limiting factors like minimum and maximum pump speed, pressure rises, etc. “The best thing to do is to start with a clean piece of paper. Sure, you can just add something onto what you have and make it work, but it’s not going to be as competitive in the global marketplaces as starting over.”

Everyone interviewed for this article agreed that the adoption of the technology is still in the early stages. Far from tempting manufacturers to wait until later to consider the technology, that should spur OEMs and end-users alike to explore the use of servo pumps. Taking action at the beginning of a market evolution is the way to derive maximum benefit from the conversion. Designing servo pumps into your next hydraulic system will position your organization to gain a significant competitive advantage over organizations working with the incumbent technology.

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Parker"s Hydraulic Pump and Power Systems Division provides a broad selection of piston pumps, hydraulic motors and power units that help our customers meet their industrial and mobile application needs. Our division is the result of the Parker piston pump business’s acquisition of Denison Hydraulics and merger with the Parker Oildyne Division. Reach higher hydraulic working pressures, get better reliability, higher efficiencies, and achieve lower operating costs and improved productivity on your heavy-duty equipment with Parker’s line of piston pumps and vane pumps, electro-hydraulic actuators, hydraulic motors and power units, piston motors and hydrostatic transmissions.

Permanent magnet motors (PM) and, more specifically, the Interior permanent magnet motor (IPM) is far superior in many ways to the traditional induction motors that have dominated the market for the past 130 years. Nikola Tesla invented the induction motor in 1887 and its simplicity, robustness and ability to be powered directly off of the A/C power grid led to its widespread and near total market capture until the late 20th century.

While there are many types of induction motors and permanent magnet motors (radial flux vs. axial flux, for example) we will focus on the general benefits of IPM motors versus the traditional radial flux induction motor.

An induction motor must “induce” an electromagnetic force on both the rotor and the stator through copper windings to provide output torque. This means that a lot of copper is needed throughout the motor leading to a bulkier and heavier architecture than a PM motor. A PM motor utilizes only windings on the stator and magnets on the rotor. This reduces the weight and volume of the copper wire needed to create the same electromagnetic force of an induction motor of similar power.

The ability for the IPM motor to create much stronger magnetic fields than its induction counterpart are the primary reason for the power density difference. The strong and permanent nature of the magnets also allow for full torque at zero shaft speed, whereas an induction motor’s output torque drops off significantly as the output speed is lowered.

Features a hybrid drive system that combines the benefits of hydraulics with the controllability of an AC servo motor and inverter motor to satisfy a broad range of specifications with a small volume pump. Users will find energy savings in fields such as industrial machinery and machine tools.

Total weight 3.3kg. The weight of the device on ankle part where the exercise load is big is reduced to 0.97kg by wearing the power supply on the waist. 65Nm torque is generated by Takako"s standard 0.4cc pump.

For hydraulic systems that place high demands on control engineering, servo pumps are the perfect solution. The basic version of these pump systems also consists of three main components:Servo inverter

Servo pumps control the pressure or the volume flow. They precisely convert electrical energy into the hydraulic energy that is currently needed in the system. The classic use of valves for control can be either completely or partially omitted. This considerably simplifies every hydraulic system.

We carry a large selection of Bosch Rexroth hydraulics pumps, motors & more. If you can’t find the Rexroth Pump you’re looking for or you need a Bosch Rexroth hydraulics pump repair, contact us today!

We can supply what you need or repair what you have. Before purchasing, there may be a good chance that your current Bosch Rexroth hydraulic pump or motor can be repaired. Bosch Rexroth hydraulics repairs and motor repairs come with our two year warranty.

When purchasing, consider remanufactured Bosch Rexroth hydraulics or after-market hydraulic units. They can get you back up and running for less than the cost of a new Bosch Rexroth hydraulic unit. We will give you a free quote so you can compare costs for a new, repaired or re-manufactured Bosch Rexroth unit, saving you money without compromising the results of your Bosch Rexroth hydraulic unit.

In 1795, the Rexroth family established an iron forge in Spessart, Germany. However, it wasn’t until 1952 that they began producing standardized hydraulic components and hydraulics. In 1953 they invented the first industrialized gear pump for mobile machines. Later, in 1972, Rexroth launched the first hydraulic servo valve onto the market and became a wholly-owned subsidiary of Mannesmann AG in 1975. They developed the world’s first maintenance-free AC servomotor in 1979, revolutionizing the mechanical engineering industry. Throughout the 90s Rexroth continued to grow and revolutionize the industry, launching inventions used in a variety of industries. Mannesmann Rexroth AG and Bosch Automation Technology merged to form Bosch Rexroth in 2001 and today, Bosch Rexroth is one of the leading specialists in drive and control technologies.

Axial piston pumps: intended for the medium and high-pressure range and come in a variety of designs, performance ranges, and adjustment options for mobile, stationary and industrial applications.

Bosch Rexroth hydraulic motors are known for their reliability, long life cycles, low noise emissions, as well as high efficiency, and cost-effectiveness. The range is available in swashplate or bent axis designs which are used in medium and high-pressure applications. They have several models including:

External gear motors: a cost-effective alternative for rotary drives up to 50kW. External gear motors are available for one rotation direction or reversible for 2 and 4 quadrant operation.

Bosch Rexroth hydraulics offers a range of hydraulic “on/off” valves including isolator valves, directional valves, pressure valves, flow control, and throttle valves, and directional cartridge valves.

Directional valves:control the flow and direction of movement or rotation of hydraulic actuators which include directional seat or spool valves, direct operated or pilot operated valves.