Rexroth A6VE160 High‑Power Variable Axial Piston Motor
Overview and key specifications
The A6VE160 is a bent‑axis, variable‑displacement axial‑piston motor built for heavy‑duty mobile equipment and hydrostatic transmissions in both open and closed circuits. It features a geometric displacement of 160 cm³/rev, nominal pressure up to 400 bar, and maximum pressure up to 450 bar. The plug‑in design with a recessed center mounting flange allows direct integration into mechanical gearboxes for space‑saving layouts. Rated speeds exceed 3000 rpm with high‑speed capability to about 4900 rpm (depending on control and options), and the wide control range supports both high‑speed/low‑torque and low‑speed/high‑torque operation.
Parameter | Value |
|---|---|
Displacement (Vg max) | 160 cm³/rev |
Nominal pressure (p nom) | 400 bar |
Maximum pressure (p max) | 450 bar |
Max. speed at Vg max (n nom) | ≈ 3100 rpm |
Max. speed at Vg < Vg x (n max) | ≈ 4900 rpm |
Max. speed at Vg min (n max 0) | ≈ 5500 rpm |
Inlet flow at n nom, Vg max (qV nom) | ≈ 496 L/min |
Torque at Vg max, Δp = 400 bar (T) | ≈ 1019 N·m |
Approx. weight | ≈ 62 kg |
Circuit | Open and closed |
Mounting | Plug‑in with recessed flange |
Notes: Ratings and speeds are per A6VE series data for size 160; exact limits depend on control variant and system configuration.
Core features and protection
Bent‑axis, 9‑piston design with stepless displacement from Vg max → Vg min = 0 for full speed/torque envelope control.
Plug‑in integration via recessed center flange; ideal for mechanical gearbox incorporation with minimal envelope.
Suitable for open and closed circuits; high power density with good low‑speed characteristics and high starting efficiency.
Comprehensive valving options: optional flushing valve, boost‑pressure valve, and integrated or add‑on counterbalance valve for controlled lowering and load holding.
HFA fluids are unsuitable; follow Rexroth data sheets for HFB/HFC/HFD compatibility and seal selection.
Typical applications
Heavy‑duty mobile machinery: wheel loaders, dozers, graders, mining trucks, drilling rigs, and other high‑torque, high‑reliability drives.
Industrial hydrostatic transmissions requiring variable speed/torque with compact integration and high efficiency.
Model code and ordering guidance
Example breakdown: A6VE160 EP2 / 63W – VAL020FHB – S
A6VE160: Series and size (160 cm³/rev).
EP2: Control family and version (electro‑proportional, variant 2).
/63W: Series suffix and mounting/through‑drive orientation.
VAL020FHB: Port/flange/design and option code.
S: Further variant suffix.
Common control families include EP (electro‑proportional), HZ (electrical/servo‑type), DA (hydraulic remote). Always order using the complete type code and verify against the nameplate and machine parts list.
Commissioning and maintenance essentials
Maintain clean, air‑free oil and ensure the unit is primed/vented; verify suction conditions and oil viscosity per OEM spec.
Case drain (T1/T2) must return below the minimum oil level; avoid pressure build‑up in common return lines when multiple units are connected.
Respect maximum allowable case pressure; use separate drain lines if necessary.
For long idle periods, re‑prime before start; ensure elastic mounting of lines to reduce noise and vibration.
Do not use HFA fluids; select HFB/HFC/HFD types and seals per Rexroth documentation.
