A6VM Hydraulic Axial piston variable motors , Rexroth High voltage high speed motor
Filtration of the hydraulic fluid
Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit.
A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.
At very high hydraulic fluid temperatures (90 °C to maximum 103 °C, measured at port T), a cleanliness level of at least 19/17/14 according to ISO 4406 is necessary.
Effect of case pressure on beginning of control
An increase in case pressure affects the beginning of control of the variable motor when using the following control options:
HD, HA.T3: increase
HD, EP, HA, HA.T (Sizes 250 to 1000): increase
DA: decrease
With the following settings, an increase in case pressure will have no effect on the beginning of control:
HA.R and HA.U, EP, HA
The factory settings for the beginning of control are made at pabs = 2 bar (sizes 28 to 200) and pabs = 1 bar (sizes 250 to 1000) case pressure.
Technical data
All-purpose high pressure motor.
Sizes 28 to 200:
Nominal pressure 400 bar.
Maximum pressure 450 bar.
Sizes 250 to 1000:
Nominal pressure 350 bar.
Maximum pressure 400 bar.
Open and closed circuits.
Features
Robust motor with long service life.
Approved for very high rotational speeds.
High control range (can be swiveled to zero).
High torque.
Variety of controls.
Optionally with flushing and boost-pressure valve mounted.
Optionally with integrated or mounted counterbalance valve.
Bent-axis design.
