Rexroth CDH1 Series Hydraulic Cylinder | CDH1MF3/63/45/50 | OEM Heavy Duty Oil Cylinder

LIC Hydraulic’s Rexroth CDH1 and CDM1 Series heavy-duty hydraulic cylinders are the industry standard for durability and precision. Specifically engineered as a 100% Drop-in Interchangeable replacement for model CDH1MF3/63/45/50A30/B11CGEMW, these cylinders comply with ISO 6022 (DIN 24333) specifications. Designed for a continuous nominal pressure of 250 bar, our cylinders feature high-tensile alloy steel construction and precision-ground piston rods. Every unit undergoes 100% static high-pressure and low-pressure leakage testing to ensure flawless performance in the most demanding industrial environments.

Technical Specifications (Model Breakdown)

• Installation (MF3): Head Circular Flange Mounting.

• Piston/Rod Ø: 63 mm / 45 mm (Heavy-duty ratio).

• Pressure Rating: 250 bar (Nominal) / 320 bar (Peak).

• Standard Compliance: ISO 6022.

• Seals (CG): Low-friction sealing system optimized for mineral oils.

• Cushioning: Optional high-efficiency end-position damping for shock reduction.

Key Technical Advantages

• Rugged Construction: The tie-rodless, bolted head design offers superior fatigue resistance compared to standard light-duty cylinders, making it ideal for high-cycle applications.

• Advanced Damping Technology: Self-adjusting end-position cushioning reduces kinetic energy at the end of the stroke, protecting both the cylinder and the host machine from mechanical shock.

• Superior Surface Protection: The piston rod is induction hardened and hard-chrome plated as standard, ensuring exceptional resistance to scratching and corrosion even in harsh outdoor or mining environments.

• Enhanced Side Load Capacity: Features long-reach guide bushings made of anti-friction alloy to handle lateral forces and prevent seal extrusion or rod scoring.

Expert Maintenance Tips

• Mounting Alignment: Ensure the MF3 flange is mounted on a surface with absolute perpendicularity to the rod axis. Even minor misalignment can cause premature wear on the guide bushings.

• Fluid Cleanliness: To maintain the integrity of the CG-grade seals, maintain system oil cleanliness at ISO 4406 19/17/14 or better.

• Venting the Cylinder: During the initial installation of the CDH1, use the integrated vent screws (if equipped) to bleed trapped air. Trapped air can cause “dieseling” effects that damage seals during high-pressure cycles.