110-1241-006 Char-Lynn 4000 Series LSHT Orbit Motor

Product Overview

The 110-1241-006 (and related codes across 104, 106, 109, 110, 111, 112, 113, 119 series) belongs to the Eaton Char-Lynn (now Danfoss) 4000 Series (4K) low-speed high-torque (LSHT) disc-valve orbital hydraulic motors, also covering the 2000 Series (2K) and 6000 Series (6K) families. Featuring a precision Geroler gear set with disc-valve architecture, these motors are engineered for medium-to-high torque, high-flow, and mobile/industrial heavy-duty applications. They deliver high starting torque, smooth low-speed operation, excellent radial load capacity, and high volumetric efficiency. Fully interchangeable with original Char-Lynn / Danfoss 2K, 4K, and 6K units, they are validated under simulated operating conditions for reliable performance in construction, agricultural, and industrial drive systems.

Technical Specifications 

• Model: 110-1241-006 (Char-Lynn / Danfoss 4000 Series)
• Series Coverage: 2000 Series (2K), 4000 Series (4K), 6000 Series (6K)
• Geometric Displacement Range (4000 Series typical): 110–625 cm³/rev (6.7–38.0 in³/rev)
• Maximum Continuous Flow: 95 L/min (25 gpm)
• Maximum Intermittent Flow: 150 L/min (40 gpm)
• Maximum Continuous Pressure Drop: 205 bar (3000 psi)
• Maximum Intermittent Pressure Drop: 310 bar (4500 psi)
• Maximum Continuous Torque: up to approx. 970 Nm (8600 lb-in)
• Maximum Intermittent Torque: up to approx. 1180 Nm (10450 lb-in)
• Maximum Continuous Speed: up to approx. 722 rpm
• Maximum Intermittent Speed: up to approx. 868 rpm
• Control Type: Disc-valve-driven Geroler orbital motor
• Bearings: Roller bearings supporting high radial loads
• Mounting & Shaft Options: Multiple flanges and output shafts available (standard, wheel, bearingless, etc.)
• Weight: Configuration-dependent (typical 15–30 kg range)

Key Technical Advantages

1. Precision Geroler gear set combined with disc-valve design minimizes internal leakage, maintaining high volumetric and mechanical efficiency even at elevated flow rates.
2. Roller bearings provide superior radial load capacity, ideal for direct chain, sprocket, or wheel-hub drives under static and dynamic loads.
3. High starting torque and smooth operation across the full speed range make the motors well-suited for frequent start-stop, low-speed high-load, and reversing duty cycles.
4. Robust cast-iron housing with precision machining delivers high rigidity and pressure resistance for continuous and intermittent high-pressure operation.
5. Modular configuration options (displacement, flange, shaft, ports) facilitate system integration and full drop-in interchangeability, reducing downtime and replacement costs.

Application Areas

Construction machinery (excavators, loaders for drive or swing functions), agricultural equipment (mowers, sprayers, trenchers), snow removal equipment, wood products machinery, material handling and lifting systems, winches, and other mobile or stationary hydraulic systems requiring high torque at low to medium speeds.

Expert Maintenance Tips

Ensure precise flange alignment and respect radial load limits during installation. Use anti-wear hydraulic oil meeting ISO cleanliness code 18/13 and maintain appropriate operating temperature. Fully bleed the system and run at light load for initial break-in. Regularly inspect the shaft seal, case drain, and fluid condition. Intermittent and peak pressure ratings are for short-duration use only (intermittent max 10% of each minute). In case of unusual noise, vibration, or torque loss, first check system contamination, fluid condition, and bearing status. Use genuine Char-Lynn / Danfoss seal kits for service to preserve original performance.