Parker Denison M5BF Motor | M5BF-012 028 045 | Hydraulic Fan Motor | M5BF-045-1N03 1N04

Parker Denison M5BF Series Heavy-Duty Hydraulic Fan Motors

Product Overview: The Parker Denison M5BF Series is a fixed displacement vane motor specifically engineered for the demanding cooling systems of modern mobile machinery. Spanning displacements from 12cc to 45cc, this series provides precise matching for various cooling fan specifications. This page highlights the core flagship models: M5BF-045-1N03 and M5BF-045-1N04. Featuring a unique hydraulically balanced vane design, M5BF motors maintain superior mechanical efficiency under extreme pressure and speed conditions. They are the premier choice for fan drive circuits in excavators, heavy bulldozers, agricultural harvesters, and high-performance Hydraulic Power Units (HPUs).

Key Technical Advantages:

• Elite High-Pressure Response: Continuous operating pressure up to 320 Bar (4650 PSI) significantly enhances energy transmission efficiency and reduces heat generation within the hydraulic system.

• High-Speed Stability: Optimized for high-velocity cycles up to 4000 RPM, ensuring the fan delivers maximum airflow even in the most severe ambient temperatures.

• Bi-rotational Versatility: Standard bi-directional support allows for easy implementation of “Fan Reversal” functions to clear debris from radiators via solenoid control.

• Compact Integrated Design: High power density enables flexible installation within cramped engine compartments while offering exceptional resistance to mechanical vibration.

• Technical Spec Decoding:

  • M5BF: Denotes the heavy-duty, high-performance vane motor series.

  • 012 – 045: Displacement codes correlating to specific parameters (12, 18, 23, 28, 36, 45 cc/rev).

  • 1N03 / 1N04: Relates to specific shaft configurations (e.g., SAE B Splined or Keyed) and porting standards.

Detailed Models & Parameters:

• Core Series: Parker Denison M5BF Series (High-Speed Fan Motor).

• Full Displacement Matrix:

  • Compact Frames: M5BF-012, M5BF-018, M5BF-023.

  • Heavy Frames: M5BF-028, M5BF-036, M5BF-045 (Flagship models).

• Core Performance Specs (M5BF-045):

  • Displacement: 45.0 cc/rev.

  • Rated Pressure: Continuous up to 320 Bar.

  • Maximum Speed: Capable of 3600 – 4000 RPM.

  • Shaft Types: 1N03 (Splined 13T), 1N04 (Keyed).