Lenze A8VO plunger pump, axial variable twin pump

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Series: A8VO Axial Plunger Variable Twin Pumps
Specifications: 55, 80, 107, 140, 200
Operating Pressure: Nominal pressure 350 bar, Peak pressure 400 bar
Control Equipment: Independent power controller without power override control; equipped with hydraulic travel limiters (positive control) and external pilot oil pressure supply; load sensing; hydraulic power coupling; load sensing and hydraulic travel limiters (negative control); hydraulic travel limiters (positive control) and external pilot oil pressure supply; hydraulic travel limiters (negative control) and external pilot oil pressure supply; independent power controller with power override control via pilot pressure; equipped with hydraulic travel limiters (positive control) and external pilot oil pressure supply; load sensing; hydraulic power coupling; load sensing and hydraulic travel limiters (negative control); hydraulic travel limiters (positive control) and external pilot oil pressure supply; hydraulic travel limiters (negative control) and external pilot oil pressure supply; electrical control with proportional solenoid (positive control), U = 24 V
Features: – The variable twin pumps consist of two axial tapered plunger rotary assemblies designed with an inclined shaft, used for hydrostatic transmission in open circuits. – Flow rate is proportional to input speed and displacement, and can vary continuously within the range from qv max to qv min(0). – The pumps can be installed directly on the flywheel housing of diesel engines. – The auxiliary pump and the two oil circuits share one suction port. – A sophisticated control program enables various control and adjustment functions. – Independent power controller. – Built-in auxiliary pump with a pressure relief valve; an additional pressure reducing valve can be installed optionally. – Various models of power output units are available for installing axial plunger and gear pumps. – Excellent power-to-weight ratio. – Long service life
Technical Data Sheet: Series 61/63
Specifications: 55…200
Nominal Pressure: 350 bar
Peak Pressure: 400 bar
Use: Open circuits
Safety Instructions for Open Circuits: – The A8VO pumps are designed for use in open circuits. – The project planning, assembly, and commissioning of pumps must be carried out by qualified personnel. – The working line oil ports and functional oil ports are designed solely for installing hydraulic lines. – During operation and shortly after, the motor (especially the electromagnet) may pose a risk of burns. Take appropriate safety precautions, such as wearing protective clothing. – The characteristics of the pump may vary, depending on its operating conditions (operating pressure, oil temperature). – Tightening torque: – The tightening torques specified in this technical data sheet are all maximum values and must not be exceeded (these represent the maximum torque for the threads). It is necessary to follow the manufacturer’s specifications regarding the maximum allowable tightening torque for the installation tools used! - For DIN 13 set screws, we recommend checking their tightening torque separately in accordance with VDI 2230 version 2003. – The data and information provided here must be taken as authoritative. Installation instructions: During debugging and operation, the axial piston unit must always be filled with hydraulic oil and free of air. When the shutdown period is relatively long, the above precautions should still be followed, as the system may empty through the hydraulic lines. The housing oil drainage chamber is internally connected to the oil suction chamber. There is no need to connect the housing oil drain line to the fuel tank. Pay attention to the characteristics of Specification 200 rinse solution. (Oil port R4) Under all operating conditions, the oil suction line must extend below the lowest oil level in the fuel tank. The minimum suction pressure at oil port S must not drop below 0.8 bar. The installation position axis is horizontal. Installation below the fuel tank means that the pump should be installed below the lowest level of fuel in the tank. Learn more about Rexroth variable piston pumps: http://www.aotuoshi.com/