Overview
The Char-Lynn 2558D (model E04106B-006, CVQP91) is a disc valve orbital hydraulic motor engineered for high-torque, low-speed industrial applications. Char-Lynn motors are manufactured by Eaton Hydraulics and are recognized for compact, self-contained designs that deliver consistent power in confined spaces. This 395cm³/r displacement unit provides reliable performance in demanding hydraulic systems where precision torque and smooth speed control are critical.
Key Features
- Displacement: 395cm³/r (24.0 in³/r)
- Disc valve design for high mechanical efficiency and smooth operation
- Self-contained unit with integral hydraulic lubrication
- High torque output at low speeds with minimal speed variation under load
- Sealed design for safe operation in harsh environments (dust, dirt, moisture, heat)
- Reversible rotation with instant directional control
Technical Specifications
- Displacement: 395cm³/r (24.0 in³/r)
- Mounting Type: Standard 4-bolt flange
- Port Size: 1 1/16″ – 12 inch O-ring, staggered ports
- Shaft: 1.25″ straight with woodruff key
- Material: Iron construction
- Design Type: Disc valve orbital motor
Typical Applications
Char-Lynn 2558D motors are widely used in:
- Hydraulic winches and hoists
- Industrial compressors and pumps
- Agricultural and construction equipment
- Precision feed drives on machine tools
- Mining and material handling systems
- Compact hydraulic actuation where space is limited
Compatibility & Replacements
Compatible With
- Standard industrial hydraulic systems (1000–3000 PSI rated)
- Systems using disc valve motor technology
- Applications requiring 4-bolt flange mount motors
- Hydraulic circuits with 1 1/16″ SAE ports
Replaces / Drop-In Replacement For
- OEM Char-Lynn 2558D units (any condition code suffix)
- Matching displacement orbital motors with identical mounting and port configurations
- Verify mounting hole spacing and port thread pitch before ordering to ensure compatibility
Works With
- Hydraulic control valves (directional, flow control, pressure relief)
- Standard SAE flange adaptors and coupling systems
- Industrial hydraulic pumps and accumulators
- Manual and proportional directional control systems
