Eaton Char-Lynn 104 Series Hydraulic Motor 104-1001 104-1002 104-1003

The heavy-duty Eaton Char-Lynn Compatible 104 Series Industrial Hydraulic Orbit Motors (featuring industry-standard global procurement codes 104-1001-006, 104-1002-006, 104-1003-006, 104-1004-006, and 104-1005-006), engineered by Chengyuan Hydraulic, stand as premium low-speed high-torque (LSHT) fluid power actuators designed for severe mobile drive assemblies, material processing conveyances, maritime winch networks, and agricultural machinery. Belonging to the legendary Char-Lynn 2000 Series disc-valve family, this lineup is produced with 100% direct drop-in interchangeability. The suffix designation “-006” specifies the universal heavy-duty mounting profile: a standard 4-bolt square flange, standardized straight keyway or splined output shaft, and matching side-located threaded fluid port configurations. B2B system engineers and OEM builders can execute hassle-free on-site replacements, dropping these units straight into existing machine layouts with zero geometric modification.

In severe cyclical applications involving high pressure fluctuations, a displacement motor’s volumetric efficiency, mechanical starting torque, and output shaft bearing longevity dictate the field runtime of the entire machine. At Chengyuan, build quality is backed by rigorous validation; 100% of our manufactured 104 Series orbit motors pass 100% rigorous dynamic simulation test bench criteria. Tested under fully instrumented diagnostic bays, each motor is subjected to continuous pressure loads (up to 20-31 MPa), extreme radial forces, and rapid forward-reverse cycling. Our precision data tracking logs running torque and casing temperature profiles, ensuring that every motor delivers smooth rotation down to 10 rpm without slipping and maintains zero external leakage under full structural loads.

Technical Specifications

• Product Series Adherence: Eaton Char-Lynn 104 Series Equivalent (Standard 2000 Series Disc-Valve Hydraulic Orbit Motors)

• Distribution Valve Architecture: Precision Disc Valve configuration, mechanically independent, ensuring automatic wear-compensation under high stress.

• Stator/Rotor Structural Design: Advanced Geroler® profiling incorporating high-hardness cylindrical rollers to eliminate sliding friction losses.

• Maximum Permissible Continuous Pressure: 20.7 MPa (approx. 207 bar / 3000 psi)

• Maximum Intermittent Peak Pressure Boundary: 31.0 MPa (approx. 310 bar / 4500 psi)

• Model-Specific Dimensional & Performance Parameters (Accurate to Original Engineering Data):

  • Part Reference: 104-1001-006

    • Nominal Volumetric Displacement: $80 \text{ cm}^3/\text{rev}$ ($4.9 \text{ in}^3/\text{rev}$).

    • Maximum Continuous Rated Speed: ~800 to 900 rpm.

    • Maximum Continuous Torque Delivery: ~230 Nm.

  • Part Reference: 104-1002-006

    • Nominal Volumetric Displacement: $100 \text{ cm}^3/\text{rev}$ ($6.2 \text{ in}^3/\text{rev}$).

    • Maximum Continuous Rated Speed: ~740 rpm.

    • Maximum Continuous Torque Delivery: ~290 Nm.

  • Part Reference: 104-1003-006

    • Nominal Volumetric Displacement: $130 \text{ cm}^3/\text{rev}$ ($8.0 \text{ in}^3/\text{rev}$).

    • Maximum Continuous Rated Speed: ~570 rpm.

    • Maximum Continuous Torque Delivery: ~380 Nm.

  • Part Reference: 104-1004-006

    • Nominal Volumetric Displacement: $160 \text{ cm}^3/\text{rev}$ ($9.6 \text{ in}^3/\text{rev}$).

    • Maximum Continuous Rated Speed: ~470 rpm.

    • Maximum Continuous Torque Delivery: ~460 Nm.

  • Part Reference: 104-1005-006

    • Nominal Volumetric Displacement: $195 \text{ cm}^3/\text{rev}$ ($11.9 \text{ in}^3/\text{rev}$).

    • Maximum Continuous Rated Speed: ~380 rpm.

    • Maximum Continuous Torque Delivery: ~550 Nm.

Key Technical Advantages

• High-Efficiency Geroler® Roller-Pin Star Assembly: By incorporating hard, precision-ground cylindrical rollers within the stator teeth, the traditional metal-on-metal sliding friction is converted into smooth rolling contact. This engineering detail boosts mechanical starting efficiency above 85% and substantially reduces wear during high-load startups.

• Pressure-Compensated Axially Balanced Disc Valve: The distribution disc valve operates with an independent axial clearance seating configuration. As system operating pressure escalates, hydraulic forces automatically bias the valve disc against the manifold face, maintaining a micro-gap seal. This configuration keeps volumetric efficiency above 90% even at sustained pressures over 20 MPa.

• Heavy Dual Tapered Roller Bearing Bearing Matrix: The front section of the motor housing integrates two high-load tapered roller bearings. This structural design enables the output shaft to manage significant axial thrust and heavy overhung radial loads simultaneously, allowing users to mount sprockets, gears, or wheels directly onto the shaft without an external pillow block bearing support.

• High-Pressure Shaft Seal & Double Check Valve Porting: The output shaft is outfitted with a premium multi-lip, high-pressure lip seal that resists extreme backpressures. Backed by dual internal check valves that channel case oil back to the low-pressure side, this sealing configuration ensures zero external oil weeping even if a dedicated external case drain line is omitted.

Application Areas

Thanks to their compact power-to-weight ratio, high radial load capacity, and versatile displacement steps, 104 Series orbit motors are widely selected across various heavy transmission fields:

• Mobile Propulsion & Turning Manifolds: Reel drives for agricultural combine harvesters, track drive gearboxes for compact crawler drills, and swing rotation reducers for truck cranes.

• Heavy Winch Control & Conveyances: Industrial material belt conveyor systems, street sweeper brush drives, and hydraulic towing winch drums for maritime salvage or recovery vehicles.

• Agricultural Tooling & Injection Units: Rotary cutting heads for forestry equipment, heavy timber grapples, and mold-clamping or screw-feed drives on compact plastic injection molding stations.

Expert Maintenance Tips

• Fill the Motor Case with Clean Hydraulic Oil Prior to Initial Operation: The internal Geroler assembly, drive link, and disc valve rely on case fluid for splash lubrication during startup. Running the motor dry at high speed initially can cause immediate scoring on the distribution faces and drive link couplings due to dry friction.

• Connect an External Dedicated Case Drain Line if Backpressure Exceeds 2.1 MPa (300 psi): While internal check valves balance internal pressures, running the motor in a series circuit or through excessively long return lines can elevate backpressure and accelerate shaft seal wear. Routing a dedicated drain line from the case port directly back to the reservoir is the most effective way to optimize seal life.

• Maintain Rigid Fluid Filtration Standards and Avoid Viscosity Mismatches: Disc-valve orbit motors are highly sensitive to particulate contamination. Micron-sized abrasive particles can score the precision-ground valve faces, leading to a severe drop in volumetric efficiency. Maintain an oil cleanliness standard of ISO 4406 19/16/13 or cleaner, and target an optimal operating oil temperature window between $30^{\circ}\text{C}$ and $60^{\circ}\text{C}$.