Rexroth A6V55 Motor | A6V55EL2FF, A6V55EL2FZ | Variable Displacement Drive Motor

Rexroth A6V55 Series Variable Displacement Bent-Axis Motors

Product Overview: The Rexroth A6V55 Series is a premier power component for high-performance hydraulic drive systems, featuring advanced bent-axis variable displacement technology. As a leader in the 55cc displacement class, the A6V55 is engineered for mobile machinery requiring precise speed control and high power density. This featured selection includes specific electronic control configurations: A6V55EL2FF-20158, A6V55EL2FZ-20258, and A6V55EL2FZ-20296. With its superior proportional control characteristics, the series is widely used in crawler travel drives, harvester propulsion systems, multi-purpose utility vehicles, and complex hydrostatic transmission (HST) circuits.

Key Technical Advantages:

• Precise EL2 Proportional Control: Equipped with electric proportional control, the motor displacement adjusts steplessly based on current signals, ensuring smooth acceleration, deceleration, and gear shifts.

• Peak Pressure Resilience: Rated for continuous operation at 400 Bar (5800 PSI) with peak capabilities up to 450 Bar, maintaining exceptional stability under heavy-duty climbing or high-load cycles.

• Elite Power-to-Weight Ratio: The compact 55cc displacement class combined with bent-axis architecture allows for massive torque output within a minimal footprint.

• High Responsiveness & Long Life: Reinforced bearing systems and precision piston-to-cylinder fit ensure an extended service life and low maintenance costs in harsh construction and agricultural environments.

• Flexible Integration Solutions: EL2FZ and EL2FF suffixes denote specific electrical connection standards and control logic, perfectly compatible with modern bus-controlled systems.

• Target Applications: Construction machinery travel drives, agricultural equipment propulsion, municipal sanitation vehicles, and industrial hydrostatic drives.

Detailed Models & Parameters:

• Core Series: Rexroth A6V Series (Bent-Axis Variable Displacement).

• Model Keywords: A6V55, A6V55EL2FF, A6V55EL2FZ, 20158, 20258, 20296.

• Technical Specs Decoding:

  • A6V55: 55cc/rev maximum nominal displacement.

  • EL2: Electric proportional displacement control.

  • FF / FZ: Refers to specific sensor configurations, plug types, or feedback characteristics.

  • 20158 / 20258 / 20296: Special function codes or design sequences tailored for specific OEMs.

• Pressure Specs: Nominal Pressure 400 Bar, Peak Pressure 450 Bar (6500 PSI).