Rexroth A6VM A2FM A10VM axial piston motors for Vilakone Oy forklift 32220040 32220055 32220056 32220065 32220066 32220080 32220090

If you operate or maintain a fleet of forklifts through Vilakone Oy, sooner or later you'll run into a hydraulic drive motor that needs replacing, rebuilding, or troubleshooting. More often than not, that motor is a Bosch Rexroth axial piston unit — an A6VM, an A2FM, or an A10VM.

Why Axial Piston Motors Matter for Forklift Drivetrains

Forklifts rely on hydrostatic transmission for a reason: it delivers smooth, infinitely variable speed control, strong torque at low RPM, and the ability to reverse direction instantly without a mechanical gearbox or clutch. An axial piston motor is the component that converts hydraulic flow and pressure from the pump into rotational force at the wheel or hydraulic function.

Rexroth's piston motors are the industry benchmark in this space because they combine high volumetric efficiency, durability under constant load-reversal cycles, and a design that tolerates the dirt, vibration, and temperature swings typical of warehouse and yard environments — conditions Vilakone Oy's fleet regularly operates in across Finland.

The Basic Working Principle

All three motor types use a rotating cylinder block with pistons arranged axially (parallel to the shaft). Hydraulic pressure pushes the pistons against a swashplate or bent-axis housing, and the angled surface converts that linear piston motion into rotary shaft output. Displacement — and therefore speed and torque — is controlled either by a fixed geometry or a variable-angle mechanism, depending on the model.

A6VM: The Bent-Axis Variable Motor for Heavy-Duty Drive

The A6VM series is a variable-displacement, bent-axis piston motor. Instead of a swashplate, the cylinder block itself sits at an angle relative to the output shaft, which allows for a more compact motor with a higher maximum angle of displacement — meaning more torque density per kilogram.

Typical forklift application: primary wheel drive motors on medium and heavy-capacity forklifts, and on reach trucks or container handlers where high starting torque and a wide speed range are essential.

A2FM: The Fixed-Displacement Workhorse

The A2FM is a fixed-displacement bent-axis motor, generally simpler and more compact than the A6VM because there's no variable-angle control mechanism to house. Fixed displacement means constant torque and speed output relative to flow — predictable, mechanically simple, and typically less expensive to rebuild.

Typical forklift application: auxiliary drive functions, fan drives, and secondary axle motors, as well as primary drive on lighter forklifts and pallet trucks, where variable displacement isn't necessary.

A10VM: The Variable Motor for Precision and Efficiency

The A10VM is a swashplate-style variable-displacement motor rather than a bent-axis. This design tends to run quieter and offers very fine displacement control, which translates into smoother speed transitions — a noticeable difference to an operator during fine positioning maneuvers.

Typical forklift application: drive systems on electric and hybrid forklifts where efficiency and quiet operation matter, and on models requiring precise creep-speed control for tight warehouse aisles.

Maintenance Best Practices for Axial Piston Motors

Fluid cleanliness is non-negotiable. Piston motors have tight internal clearances; contamination is the single biggest driver of premature failure.

Monitor the case drain flow regularly. A rising trend over time is an early warning sign, long before a motor fails outright.

Respect warm-up periods in cold climates. Cold, viscous hydraulic fluid stresses internal components on startup — a relevant point for fleets operating through Finnish winters.

Use OEM or OEM-equivalent seal kits and rotary groups. Piston motor tolerances are precise enough that substandard parts shorten service life significantly.

Keep records by serial number. Rexroth motors carry detailed nameplate data (model code, displacement, control type) that a parts supplier or rebuild shop needs for an accurate quote.

For more brand and equipment models, please visit https://www.baolilaihydraulic.com/brand/

Q1: What's the difference between a bent-axis and a swashplate motor?

A1: In a bent-axis design (A6VM, A2FM), the entire cylinder block is angled relative to the shaft. In a swashplate design (A10VM), the cylinder block stays aligned with the shaft, and a tilted plate drives the pistons. Bent-axis motors generally handle higher pressure and torque density; swashplate motors tend to run smoother and offer finer control.

Q2: How long do these motors typically last?

A2: Service life depends heavily on fluid cleanliness, duty cycle, and load reversal frequency rather than on a fixed number of hours. Well-maintained units in a controlled warehouse environment routinely outlast units run in dusty, high-contamination outdoor yards by a wide margin.

Q3:What is the price and delivery time of the Rexroth A6VM/A10VM/A2FM motor for the Soilmec construction machinery？

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4:How to purchase a Rexroth A6VM/A10VM/A2FM motor for the Soilmec construction machinery?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.