Specification: 28/32 cc/rev Rated pressure: 345 bar Peak pressure: 380 bar
V40D series variable axial piston pump with
swashplate design for hydrostatic drives in
closed circuit, high pressure, high speed,
high reliability, low noise, can be applied in
engineering machinery, mobile machinery
and agricultural machinery.
• Variable axial piston pump of swashplate design for
hydrostatic drives in closed circuit.
• The flow is proportional to the drive speed and
displacement. The flow increases as the angle of the
swashplate is adjusted from zero to its maximum value.
• Flow direction changes smoothly when the swashplate
is moved through the neutral position.
• Two pressure-relief valves are provided on the high
pressure ports to protect the hydrostatic transmission
(pump and motor) from overload.
• The integrated charge pump can provide system
replenishing and cooling fluid flow.
• High reliability, long working lifetime
• Compact structure, high power density.
Technical Specs
Size
28
32
Displacement cc/rev
28
32
Speed
Rated rpm
3400
3400
Max. rpm
4000
4000
Min. rpm
500
500
Pressure
Rated (bar)
(relative to Charge pressure)
345
345
Max. (bar)
(relative to Charge pressure)
380
380
Min. low loop pressure(bar)
(relative to Charge pump)
10
10
Charge pressure
(relative to Charge pump)
Min. (bar)
16
16
Max. (bar)
31
31
Control Pressure
(relative to Charge pump)
Min. (bar)
(EDC control)(bar)
24
24
Charge pump displacement (cc/rev)
9/12
9/12
Casting pressure
Rated (bar)
3
3
Max. (bar)
(Short-time peak pressure)
5
5
Suction pressure
( Absolute pressure )
Rated (bar)
Oil viscosity ≤ 30mm2/s
0.8
0.8
Max. (bar)
2
2
Oil viscosity (mm2/s)
10~1000, Best range: 16~36
Oil Temperature (℃ )
-20~95
Oil Cleanliness
ISO 4406 20/18/15 or higher
Weight ( w/o auxiliary flange ) (Kg)
32
32
Applications
Mainly applied in construction machinery,materials handling industries,agricultural machinery such as: