CDL1MP5/50/28/120 Rexroth Hydraulic Cylinder

Product Overview

The CDL1MP5/50/28/120D1XB1CFMWW Heavy Duty Tie-Rod Hydraulic Oil Cylinder belongs to the Bosch Rexroth CDL1 industrial series (cross-compatible across CDM1MP5, CDM1MT4, CDL1MP5, CDL1MT4, CDL2MP5, and CDL2MF3 mounting configurations). Manufactured strictly in compliance with ISO 6020/2 and DIN 24554 standards, this cylinder offers 100% direct drop-in interchangeability with OEM components. It features a precision-honed seamless steel cylinder tube, an induction-hardened hard-chrome-plated piston rod, and an advanced low-friction sealing system with adjustable double-end cushioning. Every cylinder undergoes 100% factory simulated load pressure testing at 160 bar, ensuring zero fluid leakage, smooth dynamic response, and maximum uptime in demanding industrial applications.

Technical Specifications 

• Full Model Code: CDL1MP5/50/28/120D1XB1CFMWW (Compatible series: CDM1MP5, CDM1MT4, CDL1MP5, CDL1MT4, CDL2MP5, CDL2MF3)

• Bore Diameter: 50 mm

• Piston Rod Diameter: 28 mm

• Stroke Length: 120 mm

• Design Component Series: D1X / Series 1X

• Nominal Operating Pressure: 16 MPa (160 bar)

• Peak Shock Pressure: 21 MPa (210 bar)

• Max Velocity: 0.5 m/s

• Mounting Style: MP5 (Rear clevis with spherical plain bearing, ISO 6020/2)

• Port Connection: Port B1 (G 1/2″ ISO 1179-1 thread)

• Cushioning & Seal Package: Adjustable end-position cushioning (C), with low-friction Viton/Polyurethane seals (F/MWW)

• Operating Temperature Range: -20°C to +120°C

• Net Weight: Approx. 8.5 kg

Key Technical Advantages

• 100% ISO 6020/2 Drop-In Interchangeability: Exact match for pin diameters, mounting envelope, and port coordinates, enabling direct replacement without machine modification.

• Precision-Honed Tube & Hard Chrome Rod: Interior cylinder barrel finished to $Ra \le 0.2\ \mu\text{m}$, paired with an induction-hardened, chrome-plated rod ($\ge 25\ \mu\text{m}$ layer) to eliminate scoring and extend seal life.

• Anti-Stick-Slip Low-Friction Sealing: Premium Polyurethane and PTFE seal combination minimizes breakaway resistance, preventing stick-slip motion at low speeds while maintaining zero fluid bypass under pressure spikes.

• 100% Simulated Load Factory Tested: Dynamically cycling-tested and pressure-held under full rated working conditions prior to dispatch to ensure zero defect quality.

Application Areas

• Plastics & Injection Molding: Injection molding core-pulling units and high-pressure ejection circuits.

• Machine Tools & Automation: CNC machine tool hydraulic clamping fixtures and factory automation lifters.

• Industrial Presses: Light-to-medium hydraulic presses, balers, and auxiliary positioning actuators.

• Hydraulic Power Units: Auxiliary loops in HPU systems and high-pressure locking mechanisms.

Expert Maintenance Tips

• Prevent Side Loading: Ensure precise alignment of the spherical bearing mount during installation to eliminate radial side loads, which cause uneven guide bushing wear.

• Bleed Trapped Air: Bleed all trapped air through air-bleed screws before full-power operation, and cycle the cylinder 3-5 times under low pressure without load.

• Maintain Fluid Cleanliness: Maintain hydraulic oil cleanliness to ISO 4406 18/16/13 (NAS 8) or cleaner by installing high-efficiency inline pressure filters upstream.