Dinamic Oil RMPX 1100 Hydraulic Motor | RMBX Series 100-1300 Replacement | High Torque LSHT Motor

LIC Hydraulic offers the Dinamic Oil RMPX and RMBX Series hydraulic motors, recognized as a benchmark for Low-Speed High-Torque (LSHT) performance. Covering a wide displacement range from 100cc to 1300cc, including the robust RMPX-1100-M1-F11-A2B-B2, these motors provide 100% Drop-in Interchangeability with original Dinamic Oil units. Each motor is built to withstand high radial and axial stresses in the most demanding environments. We ensure peak reliability through 100% simulated load testing, guaranteeing OEM-matching torque output and volumetric efficiency for every delivery.

Technical Specifications (Sample: RMPX-1100)

• Model Code: RMPX-1100-M1-F11-A2B-B2

• Displacement: 1100.0 cm³/rev

• Continuous Pressure: 160 bar (2320 PSI)

• Intermittent Pressure: 190 bar (2755 PSI)

• Max Output Torque: Approx. 2400 N·m

• Speed Range: 5 – 150 RPM (Ultra-smooth low-speed stability)

• Shaft Type: M1 (Keyed or Splined options)

• Mounting Flange: F11 (Standard 4-Bolt pattern)

• Porting: A2B (G 3/4″ or SAE standard)

• Weight: Approx. 35.0 kg

Key Technical Advantages

• Advanced Geroler Technology: Optimized orbital rotor geometry minimizes friction and maximizes mechanical efficiency. This ensures constant torque output and smooth operation even at speeds as low as 5 RPM.

• Integrated Heavy-Duty Bearings: The RMPX series is equipped with oversized tapered roller bearings, allowing the motor to handle significant radial and axial side loads without the need for external supports.

• High-Pressure Shaft Seals: Utilizing premium reinforced sealing systems, our motors can operate reliably under high back pressure, preventing external leaks and extending seal life during frequent reversals.

• High-Tensile Ductile Iron Housing: The rugged housing is cast from high-grade ductile iron, providing superior thermal dissipation and structural strength against hydraulic pressure spikes and mechanical impacts.

Application Areas

• Construction Machinery: Roller drives, paver conveyors, and mini-excavator swing drives.

• Marine & Offshore: Winch systems, fishing net haulers, and auxiliary deck crane rotations.

• Industrial Automation: Heavy-duty conveyor drives, agitators, and mold adjustment mechanisms for plastic machinery.

Expert Maintenance Tips

1. Case Drain Requirement: For large displacement RMPX motors, always connect the external case drain line to ensure internal pressure remains below 10 bar, protecting the shaft seal and facilitating internal cooling.

2. Break-in Procedure: Run the motor under no-load conditions for 10-15 minutes upon initial installation to ensure proper lubrication of all internal moving parts.

3. Filtration Protocol: Maintain a fluid cleanliness level of ISO 4406 18/16/13. High-quality filtration ($\beta_{10} \geq 75$) is essential to prevent abrasive wear on the orbital rotor set.

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