MS18-8-111-F12-2A50 Poclain Wheel Motor 450Bar

Product Overview:

The MS18-8-111-F12-2A50-0000 is a high-performance, radial piston motor with a cam-lobe design, engineered specifically for heavy-duty Low-Speed High-Torque (LSHT) applications. As a premium 100% interchangeable alternative to the original Poclain Hydraulics MS18 series, this wheel motor perfectly matches OEM dimensional footprints, flange specifications, and hydraulic ports for a seamless “Plug & Play” integration. Featuring dual-displacement capability and an integrated wet multi-disc parking brake, it delivers exceptional driving torque and operational safety. To guarantee uncompromising reliability, every single unit undergoes 100% rigorous load and simulated operational testing before leaving our facility, ensuring peak performance in the harshest environments while significantly reducing your maintenance costs.

Technical Specifications:

• Model Code: MS18-8-111-F12-2A50-0000

• Motor Type: Radial Piston Cam-Lobe Motor (Wheel Drive)

• Maximum Displacement: 2812 cm³/rev

• Nominal Operating Pressure: 400 bar (40 MPa)

• Peak Operating Pressure: 450 bar (45 MPa)

• Maximum Speed: Approx. 170 rpm (Depending on displacement)

• Control Mechanism: Dual Displacement (2-Speed)

• Brake Configuration: F12 Wet multi-disc parking brake

• Brake Release Pressure: 12 – 30 bar

• Approximate Weight: 125.0 kg

Key Technical Advantages:

• 100% True Interchangeability: Dimensionally and functionally equivalent to the Poclain MS18. Wheel hubs, mounting flanges, and valving match precisely, requiring zero mechanical or hydraulic modifications for installation.

• Optimized Cam-Lobe Profile: The precision-ground and heat-treated cam ring ensures uniform load distribution across the pistons. This guarantees exceptionally high starting torque, smooth rotation, and eliminates low-speed “cogging” or creeping.

• Integrated Dual-Speed & Braking: The 2A50 valving allows for seamless shifting between high torque (working mode) and high speed (traveling mode). The built-in F12 wet multi-disc brake is maintenance-free and provides reliable holding torque for maximum safety.

• 100% Dynamic Load Testing: We leave nothing to chance. Every motor passes through a state-of-the-art hydraulic test rig, undergoing full-power load simulation, dual-displacement shifting tests, and brake pressure retention checks to ensure zero defects upon delivery.

Application Areas:

With its robust load-bearing capacity and massive torque output, this MS18 wheel motor is the ideal drive solution for:

• Agricultural Machinery: Combine harvesters, self-propelled sprayers, and forestry equipment.

• Construction Equipment: Skid steer loaders, road rollers, and compact excavator undercarriages.

• Material Handling & Mining: Heavy-duty all-terrain forklifts, drilling rigs, and modular transporters.

Expert Maintenance Tips:

• Verify Brake Release Pressure: Before operating the vehicle, strictly verify that the pressure supplied to the F12 brake release port meets the minimum requirement (typically > 12 bar). Operating the motor with a partially engaged brake will cause severe thermal damage to the discs.

• Pre-fill the Housing: Never start the motor dry. The main housing must be completely filled with clean hydraulic fluid through the highest case drain port before initial start-up to ensure internal bearings and rotating groups are fully lubricated.

• Maintain Fluid Cleanliness: Radial piston designs require pristine fluid to maintain volumetric efficiency. Use a 10μm absolute filter in the return line and maintain fluid cleanliness to at least ISO 4406 18/16/13 to maximize the motor’s lifespan.

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