M5B 012 1N00 B1M3 Parker Denison Vane Motor 12 ml/rev 320 bar

Product Overview

The M5B 012 1N00 B1M3 (related OEM P/N 054-34330-0) and M5B 018 2N00 B1M3 are high-performance fixed-displacement vane motors from the Parker Denison (formerly Denison Hydraulics) M5 series (compatible with M5BS / M5BF / M5BF1 models). Engineered for severe-duty applications requiring high pressure, high speed, and reliable operation with low-lubricity fluids, these motors feature a patented 12-vane cartridge design that delivers outstanding volumetric efficiency and starting torque. Fully interchangeable with genuine Parker Denison units, they enable direct drop-in replacement without any modification to mounting interfaces or piping. Every unit undergoes 100% simulated operating-condition testing to ensure consistent performance and reliability in demanding industrial and mobile environments.

Technical Specifications 

• Model: M5B 012 1N00 B1M3 / M5B 018 2N00 B1M3
• Displacement: 12.0 ml/rev (012 model); 18.0 ml/rev (018 model)
• Continuous / Rated Pressure: up to approx. 290 bar
• Intermittent / Peak Pressure: up to 320 bar (M5B* 012–036 series)
• Maximum Speed: intermittent up to 6000 rpm (012/018), continuous approx. 4000 rpm
• Theoretical Torque: 0.191 Nm/bar (012); 0.286 Nm/bar (018)
• Control / Rotation: Fixed displacement, bi-rotational (N)
• Shaft Type: 1 or 2 = keyed (code dependent)
• Mounting: ISO 3019-2 100 A2/B4 or related SAE flange
• Ports: SAE ¾” 4-bolt flange (metric or UNC thread)
• Seals: Buna-N or Viton (configuration dependent)
• Weight: approx. 18.5 kg
• Brand / Series: Parker Denison M5B fixed-displacement vane motor

Key Technical Advantages

1. Patented 12-Vane Cartridge Design: Advanced cam-ring profile and dual torque cycles per revolution minimize torque ripple (typically ~1.5%), ensuring smooth output even at low speeds while achieving very low noise levels across the entire operating range.
2. High Volumetric Efficiency & Pressure Capability: Optimized for harsh conditions, supporting intermittent pressures up to 320 bar. Maintains stable long-term performance even with low-lubricity fluids and delivers high starting torque without pressure overshoots or instantaneous power spikes.
3. Bi-Rotational & External Drain Design: Standard bi-rotational (N) configuration with external drain simplifies system integration and enhances installation flexibility and reliability.
4. Robust Bearing System & Extended Service Life: High-capacity double ball bearings support substantial radial and axial loads. Combined with pressure-balanced construction, this ensures long service life under high-pressure, high-speed conditions.
5. True Interchangeability & Serviceability: Completely interchangeable rotating groups enable rapid cartridge replacement for different displacements (012/018 etc.) or worn components, significantly reducing downtime and maintenance costs.

Application Areas

• Hydraulic drive systems on construction and agricultural machinery
• Mixer, shredder, and conveyor drives in industrial hydraulic systems
• Mobile equipment generator sets and hydraulic power units
• Paper, metallurgy, mining, and other fixed installations requiring high starting torque and reliable performance
• Any high-pressure bi-rotational hydraulic drive application

Expert Maintenance Tips

1. Ensure clean, properly aligned flange faces during installation. Tighten shaft-end fasteners to the specified torque and apply appropriate anti-loosening measures for bi-rotational service.
2. Use anti-wear mineral oil of appropriate viscosity (refer to official Parker Denison recommendations). Maintain system cleanliness at ISO 18/16/13 or better; thoroughly bleed air before initial start-up.
3. For external-drain models, ensure unrestricted case drain flow to prevent excessive case pressure. Periodically inspect bearings and seals; respect radial load limits.
4. Prefer complete cartridge-group replacement rather than individual vanes to preserve alignment and efficiency. Store long-term units in a dry, corrosion-protected environment and rotate the shaft periodically.