Eaton Char-Lynn 4000 Series Motor | 129-0020-002 129-0018-002 129-0668-002

Eaton Char-Lynn 4000 Series (4 Series) LSHT Hydraulic Orbit Motors

Product Overview: The Eaton Char-Lynn 4000 Series (commonly known as the 4 Series) is the premier choice for high-performance medium-to-heavy duty hydraulic driving. This category focuses on the cornerstone models: 129-0020-002, 129-0018-002, and 129-0668-002. Utilizing advanced Disc Valve technology, the 4000 Series is engineered to maintain exceptional volumetric efficiency under continuous high-pressure conditions. Featuring patented Geroler® roller sets, internal mechanical friction is significantly reduced, ensuring smooth and pulse-free power delivery in Low Speed High Torque (LSHT) applications. It is the premier power source for combine harvester drives, large sprayer propel systems, forestry equipment, industrial conveyor drives, and heavy sweepers.

Key Technical Advantages:

• Disc Valve Precision: The independent valve plate automatically compensates for wear-induced clearances under pressure, providing superior efficiency and longer service life compared to spool valve motors.

• Geroler® Roller Geometry: Internal roller supports minimize startup pressure and ensure powerful operation even at minimal speeds.

• Elite Load Resilience: Equipped with heavy-duty tapered roller bearings, the housing handles massive radial and axial loads directly—perfect for direct-drive wheel or gear-driven setups.

• High-Pressure Shaft Seals: Features premium seals capable of handling significant return line back-pressure with zero leakage risk in demanding environments.

Detailed Specifications & Parameters:

• Core Series: Eaton Char-Lynn 4000 Series (4 Series).

• Featured Model Matrix: 129-0020-002, 129-0018-002, 129-0668-002.

• Core Performance Specs:

  • Displacement Range: 160 cc/rev to 800 cc/rev (9.8 – 48.9 cu in/rev).

  • Rated Pressure: Continuous up to 200-210 Bar (2900-3000 PSI); Intermittent peaks up to 310 Bar (4500 PSI).

  • Torque Capability: Continuous torque ranging from 450 Nm to 1100 Nm, with peaks exceeding 1400 Nm.

  • Flow Rate: Supports continuous flow inputs up to 95 L/min (25 GPM).

  • Mounting Standards: Standard 4-Bolt Square flange with Keyed, Splined, or 1:8 Tapered shaft options.