Rexroth Axial Piston Variable Pump A18VO

Rexroth A18VO axial piston variable pump

Description:

The Rexroth A18VO axial piston variable pump is a high‑pressure, variable‑displacement hydraulic pump designed for demanding applications such as commercial vehicles, mobile hydraulics, and industrial machinery. With a bent‑axis design and axial‑tapered piston rotary group, the A18VO delivers variable flow proportional to drive speed and displacement — allowing precise, continuously adjustable hydraulic output. Its compact structure, favorable power‑to‑weight ratio, and excellent suction characteristics make it a reliable choice for systems requiring efficient and robust hydraulic power.

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Rexroth Axial Piston Variable Pump A18VO

  • Variable & Precise Flow Control: Because the A18VO’s flow is proportional to drive speed and displacement, and displacement can be continuously varied via the bent‑axis swivel angle, users can precisely modulate hydraulic output according to load demands.

  • High Pressure & High Output Capacity: With nominal pressure at 350 bar and maximum up to 400 bar, combined with high flow rates (up to ~230 L/min), the A18VO supports heavy‑duty hydraulic applications requiring strong, consistent power.

  • Compact, Lightweight & Efficient Design: The bent‑axis design and optimized power-to-weight ratio make the pump suitable for space- and weight-constrained installations (e.g. commercial vehicles).

  • Good Suction & Self-Priming Capability: The pump exhibits strong suction characteristics and reliable priming, enhancing reliability especially in demanding or variable fluid‑level conditions.

  • Low Noise & Smooth Operation: Designed with efficient hydraulic group geometry, the A18VO operates with lower noise and vibration — advantageous in vehicle-mounted or operator-facing applications.

  • Durability & Long Service Life: Robust construction, quality materials, and engineering for heavy-duty use ensure high reliability and long maintenance intervals — critical for commercial, industrial, or mobile hydraulics.

Parameter Specification / Details
Product Type Axial piston variable displacement pump
Model Series A18VO (Series 11)
Displacement (geometric) 55 cm³/rev, 80 cm³/rev, 107 cm³/rev
Nominal Pressure 350 bar
Maximum Pressure 400 bar
Rated / Max Speed Depending on size: up to ~2500 rpm (size 55), ~2240 rpm (size 80), ~2150 rpm (size 107)
Flow at Vg_max & Rated Speed ~137 L/min (55 cm³), ~179 L/min (80 cm³), ~230 L/min (107 cm³)
Power Output (at nominal pressure & full displacement) ~80 kW (55), ~105 kW (80), ~134 kW (107)
Torque (at Vg_max & p_nom) ~305 Nm (55), ~446 Nm (80), ~596 Nm (107)
Weight (approx.) 16 kg (55), 21 kg (80), 25 kg (107)
Design Type Bent-axis, open circuit, axial‑tapered piston group
Mounting / Drive Interface Flange and shaft designed for direct mounting — e.g. on power take-off (PTO) of commercial vehicles
Fluid & Operating Conditions Suitable for standard hydraulic fluids used in heavy-duty/commercial hydraulic systems; good self‑suction capability; optimized for efficiency and reliability under heavy duty.
Features Variable displacement via adjustable bent‑axis swivel angle; compact size; high efficiency; low noise; long service life; excellent suction and prime capability.