Rexroth A6VM80 Axial Piston Variable Motor Overview
The A6VM80 is a high‑performance, bent‑axis, variable‑displacement axial‑piston motor for hydrostatic drives in both open and closed circuits. It delivers high torque, high power density, and a wide control range with stepless displacement from Vg max down to Vg min = 0. Typical applications include mobile machinery and industrial drives requiring precise speed and torque control.
Key specifications A6VM80
Parameter | Value |
|---|---|
Displacement (Vg max) | 80 cm³/rev |
Nominal pressure (p nom) | 400 bar |
Maximum pressure (p max) | 450 bar |
Max. speed at Vg max (n nom) | 3900 rpm |
Max. speed at Vg < Vg x (n max) | 6150 rpm |
Max. speed at Vg min (n max 0) | 7350 rpm |
Inlet flow at Vg max, n nom (qV nom) | 312 L/min |
Torque at Vg max, p nom (M) | 509 N·m |
Approx. weight | 36 kg |
Circuit | Open and closed |
Size range (series) | 28…200 (400/450 bar); 250…1000 (350/400 bar) |
Notes: Ratings per Bosch Rexroth A6VM data for size 80; performance may vary with control, options, and system limits.
Model code and suffix decoding
Example: A6VM080HA2T30004F/65AWV0C2S720U‑0
A6VM: Series and type (bent‑axis, variable motor).
080: Size code for 80 cm³/rev.
HA2: Control device family and version (hydraulic control, variant 2).
T30004F: Control/interface and special options code.
/65: Series suffix (e.g., Series 65).
AWV0C2S720U‑0: Port/flange/design and further variant details.
Common suffixes you listed map to control families: DA (hydraulic remote), EP (electro‑proportional), HA (hydraulic), HZ (electrical, servo‑type). Always order using the complete type code and verify against the nameplate and machine parts list.
Typical controls and options
Control families: HA1/HA2 (hydraulic), EP1/EP2/EP6 (electro‑proportional), EZ1/EZ2/EZ3/EZ4 (electrical), HD1/HD2/HD7 (two‑position hydraulic), HZ1/HZ3 (servo‑type). Choose based on system architecture, response, and interface needs.
Factory options: flushing valve, boost‑pressure valve, and high‑pressure counterbalance valve (e.g., BVD/BVE 20–25/32) for controlled lowering, load holding, and system protection; direct attachment to A6VM is supported. A neutral position switch (NLS) is available for detecting neutral on Series 65/71 with protection to IP67/IP69K.
Application guidance and commissioning notes
Suitable for closed‑circuit drives in mobile and industrial systems; can also be used in open circuits. Match the pump‑motor combination and control strategy (e.g., load‑sensing, pressure compensation) to achieve the desired speed/torque envelope.
Ensure hydraulic oil selection and viscosity are within recommended limits (optimal 16–36 mm²/s at operating temperature); avoid HFA fluids. If operating parameters push limits, use case flushing via port U or fit flushing/charge valves. Do not exceed maximum allowed oil temperatures (115°C for sizes 28–200).
