PRODUCTS

A8VO Hydraulic Piston Pump

A8VO

ETERNAL HYDRAULIC

A8VO55,A8VO80,A8VO107, A8VO140,A8VO200

Eternal Hydraulic A8VO Hydraulic Piston Pump

A8VO Variable single/double hydraulic pump with two axial tapered piston rotary groups of bent-axis design for hydrostatic drives in open circuits.

Displacement: 55-200 ml/r

Rated Pressure: 350 bar

Maximum Pressure:400 bar

 

Size A8VO55 A8VO80 A8VO107 A8VO140 A8VO200
Displacement Vg max cm3 2 x 54.8 2 x 80 2 x 107 2 x 140 2 x 200
Vg min cm3 0 0 0 0 0
Gear ratio i = ninput/nrotary groups 1 1 1 1 1
Input speed at Vg max 1) nmax 1 rpm 2500 2240 2150 2100 1950
at Vg ≤ Vg max2) nmax rpm 3000 2750 2450 2450 2250
Flow at nmax and Vg max qv max L/min 2 x 137 2 x 179 2 x 230 2 x 294 2 x 390
Power at nmax, Vgmax and Dp=350 bar Pmax kW 160 209 268 294 3) 325 3)
Input torque Tmax Nm 611 891 1192 1337 3) 1592 3)
Rotary stiffness (single rotary group)5) cTW Nm/rad 11213 17985 25565 41408 39505
cTW Nm/rad 41442 67666 89381 146677 156876
Moment of inertia for rotary group JTW kgm2 0.0161 0.0209 0.0345 0.0581 0.0849
without power take-off (PTO) JTW kgm2 0.0126 0.0173 0.0288 0.05 0.075
Angular acceleration (single rotary group)5) a rad/s2 25800 21800 17100 7500 11000
Mass approx. m kg 82 90 116 146 180
Variation: with integrated auxiliary pump, F00, F.. 4)
Displacement with integrated auxiliary pump Vg max cm3 8.6 8.6 8.6 (10.7) 10.7 11 (19)4)
Effective displacement Vg max/eff cm3 9.7 9.7 11 (13.7) 12.7 13.6 (23.6)
Gear ratio i = ninput/naux. pump 0.887 0.887 0.78 0.843 0.804
Variation: with power take-offs, K.., F.
Max. torque at PTO Tmax Nm 250 350 380 450 650
Gear ratio i = ninput/nPTO 1 1 1 1 0.804

 

Features of A8VO Hydraulic Pump

  • Variable double pump is equipped with two axial conical plunger rotating components with inclined axis design for hydrostatic transmission in an open circuit
  • The flow rate is proportional to the input speed and displacement, and it changes steplessly from qv max to qv min(0)
  • The pump is suitable for mounting directly on the flywheel housing of a diesel engine
  • The auxiliary pump and the two oil circuits share one suction port
  • Powerful control program, which can realize different control and adjustment functions
  • Independent power controller
  • Built-in auxiliary pump with pressure relief valve, optional additional pressure relief valve
  • A variety of power output devices can be used to install axial piston and gear pumps
  • Outstanding power/weight ratio
  • Long service life– Long service life

 

Instructions

  • The A8VO pump is designed for use in open circuits.
  • Project planning, assembly and commissioning of the pump must be carried out by qualified personnel.
  • Working line ports and function ports are only designed to install hydraulic lines.
  • During and shortly after operation, the motor (especially the solenoid) may be at risk of burns. Take appropriate safety precautions, such as wearing protective clothing.
  • The characteristics of the pump may vary, depending on the working condition of the pump (working pressure, oil temperature).
  • Tightening torque:
  • The tightening torques specified in this technical data sheet are all maximum values ​​and must not exceed these values ​​(maximum thread torque).
  • Observe the manufacturer’s instructions for the maximum allowable tightening torque of the installation tool used!
  • For DIN 13 fixing screws, we recommend a separate check of the tightening torque according to the 2003 version VDI 2230.
  • Subject to the data and information provided here.

 

 

Application of A8VO Hydraulic Pump

Piston pumps are widely used in high-pressure, high-flow, high-power systems and where the flow needs to be regulated, such as mobile and construction equipment, engineering vehicles, heavy-duty planers, metal forming and stamping, machine tools, hydraulic presses, oilfield equipment, mining and metallurgical machinery, marine and other hydraulic systems.

 

 

Related Product

A7VO series 63 Hydraulic Axial piston variable pump is a robust high pressure pump for universal use,with Size 28- 500 cc, Nominal pressure 350 bar, Maximum pressure 400 bar, used for open circuit. Our products have lower noise and longer life, can replace Rexroth type.A7VO A8VO Hydraulic Axial piston variable pump

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