sauer danfoss hydraulic pump specifications factory

Designed for the toughest demands of open circuit systems, our axial piston pumps offer the right displacements to meet your unique system needs. A full line of controls and configurations have been engineered to meet multiple application needs.

Sauer Danfoss Hydraulics is one of the largest companies in the mobile hydraulics industry. Danfoss designs, manufactures and sells a range of hydraulic and electronic components and this includes orbital motors, piston pumps and motors, steering components and proportional valves.

Precision Fluid Power repairs and supplies re0manufactured and new Danfoss hydraulics – hydraulics pumps, hydraulics valves, and hydraulics motors. Search our online catalog or contact us and let us know how we can help you.

We can supply what you need or repair what you have. Before purchasing, there may be a good chance that your current hydraulic pump, motor, valve can be repaired. Sauer Danfoss hydraulics pump repairs, including motors, valves comes with our two year warranty.

When purchasing, consider Sauer-Danfoss® (Sauer-Sundstrand) hydraulics remanufactured or after market hydraulic units. Best of all they can get you back up and running for less than the cost of a new hydraulic unit. Get a free quote so you can compare costs for a new, repaired or reman unit.

Our team of trained engineers and technicians have been repairing and remanufacturing Sauer-Danfoss® (Sauer-Sundstrand) pumps and motors for over 40 years. Our technical knowledge, experience and technically advanced manufacturing equipment We specialize in the remanufacturing of nearly every Series in the Sauer-Danfoss/Sundstrand family. All units are fully tested and set to OEM specifications before leaving any of our facilities, and are backed by an industry leading 2 year warranty.

Since the beginning, Danfoss has always been looking for innovative ways to engineer solutions to some of the most complex problems. Danfoss strives to “achieve more with less” in feeding a growing population and allowing everyone to enjoy a better quality of life.

Danfoss is continuously engineering solutions to global challenges such as urbanization and the demand for productive, sustainable growth. Their solutions helped efficiently build, operate and maintain infrastructure. This includes HVACR systems in residential and commercial buildings, shipping, transportation, road construction, and mining, just to name a few. Their technologies help ensure that food is moving through every aspect of the food chain, while being safe, efficient and environmentally-friendly. They are responsible for agricultural equipment, food and beverage manufacturing cool storage and supermarkets.

Danfoss globalization efforts reduce greenhouse gases along with reducing energy consumption of buildings and homes, as well as other applications that use large amounts of energy. Through lower energy use, they are helping reduce emissions and move towards a more environmentally friendly approach.

Mads Clausen founded Danfoss on September 1, 1933 in Denmark then changed the name from the Danish Refrigeration Controls and Apparatus Manufacturer to Danfoss in 1946. They developed their first hydraulic product in 1964. They continued to expand until their merger with Sauer-Sundstrand Hydraulic Pumps, which formed Sauer-Danfoss. Later, in April 2013, the company officially became Danfoss when they brought the remaining shares from Sauer-Sundstrand. Now Danfoss is one of the largest companies in the hydraulics industry.

Danfoss Piston Pumps and Motors come in a wide range of displacements, pressures, shaft and flange combinations and control options and they have the ability to combine multiple units, allowing for comfortable operation and efficient fuel consumption.

H1 Series Pumps and Motors: specially designed for medium and high power needs, the H1 Series feature a functional design that provides more freedom and flexibility. The H1 Series offers higher output speeds and lower input speeds while reducing overall costs. It is available in a variety of displacements and sizes.

Low Power Pumps and Motors: offer reliability, flexibility and easy installation. Their feature high efficiency, low noise levels and the ability to customize interfaces meet any needs!

Medium Power Pumps and Motors: are available in a variety of configurations, displacements and control options. High quality performance, power density, and functionality are guaranteed features of these medium power pumps.

Power Pumps and Motors: offers high power density in a simple, compact design. Their high power series is proven to perform in the toughest situations and they are proven to increase productivity.

Open Circuit Axial Piston Pumps: are available in a wide range of configurations, displacements and control options. They are compatible with many fluid types and a wide range of mounting flanges for easy installation.

Danfoss designed their proportional Valves for the most demanding tasks. They have a range of functions in a compact design so that they, provide smooth, strong and dependable performance. Configure proportional valves in an infinite number of ways so that they fit any need.​

Series 90 hydrostatic pumps and motors can be applied together or combined with other products in a system to transfer and control hydraulic power. They are intended for closed circuit applications.

Series 90 variable displacement pumps are compact, high power density units. All models utilize the parallel axial piston/slipper concept in conjunction with a tiltable swashplate to vary the pump’s displacement. Reversing the angle of the swashplate reverses the flow of oil from the pump and thus reverses the direction of rotation of the motor output.

Series 90 pumps include an integral charge pump to provide system replenishing and cooling oil flow, as well as control fluid flow. They also feature a range of auxiliary mounting pads to accept auxiliary hydraulic pumps for use in complementary hydraulic systems. A complete family of control options is available to suit a variety of control systems (mechanical, hydraulic, electric).

Series 90 variable displacement pump is compact, high power density units. All models utilize the parallel axial piston/slipper concept in conjunction with a tilt able swash plate to vary the pump’s displacement. Reversing the angle of the swash plate reverses the flow of oil from the pump and thus reverses the direction of rotation of the motor output.

Series 90 pumps include an integral charge pump to provide system replenishing and cooling oil flow, as well as control fluid flow. They also feature a range of auxiliary mounting pads to accept auxiliary hydraulic pump for use in complementary hydraulic systems. A complete family of control options is available to suit a variety of control systems (mechanical, hydraulic, electric).

Series 90 hydraulic pump and motor can be applied together or combined with other products in a system to transfer and control hydraulic power. They are intended for closed circuit applications.

Series 90 pumps can be used together in combination with other Sauer-Danfoss pump and motor in the overall hydraulic system. Sauer-Danfoss hydraulic products are designed with many different displacement, pressure and load-life capabilities.

The pump housing must be filled with hydraulic fluid under all conditions; including after a long period of shutdown. Before operating the machine, ensure the pump housing and case drain lines are free of air.

Will be inlet pressure with internal charge pump. For reference see operating parameter on next page. Will be case pressure with external charge supply. Please verify mating pump shaft seal capability.

This section defines the operating parameters and limitations for Series 90 pumps with regard to input speeds and pressures. For actual parameters, refer to the Operating parameters for each displacement.

Minimum speed is the lowest input speed recommended during engine idle condition. Operating below minimum speed limits the pump’s ability to maintain adequate flow for lubrication and power transmission.

Maximum speed is the highest operating speed permitted. Exceeding maximum speed reduces product life and can cause loss of hydrostatic power and braking capacity. Never exceed the maximum speed limit under any operating conditions. Operating conditions between Rated speed and Maximum speed should be restricted to less than full power and to limited periods of time. For most drive systems, maximum unit speed occurs during downhill braking or negative power conditions. During hydraulic braking and downhill conditions, the prime mover must be capable of providing sufficient braking torque in order to avoid pump over speed. This is especially important to consider for turbocharged and Tier 4 engines.

System pressure is the differential pressure between high pressure system ports. It is the dominant operating variable affecting hydraulic unit life. High system pressure, which results from high load, reduces expected life. Hydraulic unit life depends on the speed and normal operating, or weighted average, pressure that can only be determined from a duty cycle analysis.

Application pressure is the high pressure relief or pressure limiter setting normally defined within the order code of the pump. This is the applied system pressure at which the drive-line generates the maximum calculated pull or torque in the application.

Servo pressure is the pressure in the Servo-system needed to position and hold the pump on stroke. It depends on system pressure and speed. At minimum servo pressure the pump will run at reduced stroke depending on speed and pressure. Minimum servo pressure at corner power holds the pump on full stroke at max speed and max pressure.

An internal charge relief valve regulates charge pressure. Charge pressure supplies the control with pressure to operate the swash plate and to maintain a minimum pressure in the low side of the transmission loop. The charge pressure setting listed in the order code is the set pressure of the charge relief valve with the pump in neutral, operating at 1800

min-1 [rpm], and with a fluid viscosity of 32 mm2/s [150 SUS]. Pumps configured with no charge pump (external charge supply) are set with a charge flow of 30 l/min. [7.93 US gal/min.] and a fluid viscosity of 32 mm2/s [150 SUS].

Minimum charge inlet pressure is only allowed at cold start conditions. In some applications it is recommended to warm up the fluid (e.g. in the tank) before starting the engine and then run the engine at limited speed. Maximum charge pump inlet pressure may be applied continuously.

Auxiliary Pad Mounted Pumps. The auxiliary pad cavity of S90 pumps configured without integral charge pumps is referenced to case pressure. Units with integral charge pumps have auxiliary mounting pad cavities referenced to charge inlet (vacuum).

In certain applications the input shaft seal may be exposed to external pressure. In order to prevent damage to the shaft seal the maximum differential pressure from external sources must not exceed 0.4 bar (5.8 psi) over pump case pressure. The case pressure limits of the pump must also be followed to ensure the shaft seal is not damaged.

Cold oil will generally not affect the durability of the transmission components, but it may affect the ability of oil to flow and transmit power; therefore temperatures should remain 16 °C [30 °F] above the pour point of the hydraulic fluid. The minimum temperature relates to the physical properties of component materials. Size heat exchangers to keep the fluid within these limits. Sauer-Danfoss recommends testing to verify that these temperature limits are not exceeded.

(SAE J1165) or better, under normal operating conditions, is recommended. These cleanliness levels cannot be applied for hydraulic fluid residing in the component housing/case or any other cavity after transport.

Designed for power and speed, the Oilgear PVV open-loop axial-piston hydraulic pumps can handle large, heavy-duty systems. Manufactured with advanced engineering and computer-optimized, the PVV pump range delivers up to 450 Bar / 560 horespower which equates to four times the horsepower at less than half the cost of other manufacturers pumps.

With it"s compact design available in several displacements (200-540cc/rev), the PVV pumps offer a large selection of readily interchangeable controls. With improved response controls and reduced noise levels, its rugged cylinder design enhances performance.

The patented, pressure lubricated swashblock design offers high performance for high-cycling operations. It also contributes to the pump’s ability to run on low-viscosity fluids, including high water content, fire-resistant and other special fluids.

Zeus Hydratech fully supports the PVV pump product line and is the only valid source for OEM parts. All Oilgear repairs are machined and tested per our original factory specifications.