CDT3MT4/80/45/800 Rexroth Tie Rod Hydraulic Cylinder

Product Overview

The CDT, CDT3MT4, CDT3MS2 and CDM1MP5 series (specific models CDT3MT4/80/45/800Z20/B22HDUTWW/361.0MM, CDM1MP5/63/36/220A1XBCGDMWW) are Bosch Rexroth CDT3 / CDM1 series tie-rod and mill-type hydraulic oil cylinders designed to ISO 6020-2 standards for high-pressure industrial applications. Fully interchangeable with original Rexroth dimensions and interfaces, they install directly as drop-in replacements without modifying mounts or plumbing. Every unit undergoes 100% simulated operating condition testing to ensure reliable performance under high pressure, vibration and continuous loading, making them ideal for systems requiring high push/pull force and precise control.

Technical Specifications 

• Models: CDT3MT4/80/45/800Z20/B22HDUTWW, CDM1MP5/63/36/220A1XBCGDMWW (CDT3 / CDM1 series)
• Piston diameter: 80 mm / 63 mm
• Piston rod diameter: 45 mm / 36 mm
• Stroke: 800 mm / 220 mm (customizable)
• Acting type: Double-acting
• Construction: Tie-rod (CDT3) / Mill Type (CDM1)
• Mounting styles: MT4 (center trunnion), MS2 (foot), MP5 (self-aligning clevis) etc.
• Nominal pressure: 160 bar
• Maximum operating pressure: Up to 210 bar (static)
• Static test pressure: 240 bar
• Operating temperature range: Standard hydraulic fluid range
• Test standards: Compliant with ISO 6020-2, RE 17051 and related standards

Key Technical Advantages

• Standardized high-strength construction: ISO 6020-2 tie-rod design supports 160 bar nominal pressure (up to 210 bar), delivering excellent fatigue resistance.
• Full interchangeability: Manufactured to exact Bosch Rexroth CDT3 / CDM1 original dimensions and mounting interfaces for true drop-in replacement, minimizing downtime.
• Precision machining and sealing system: High-precision cylinder tube and piston rod combined with high-performance seals reduce internal leakage, improve volumetric efficiency and extend service life.
• Rigorous quality control: Every cylinder undergoes 100% simulated duty-cycle testing to verify pressure integrity, leakage and fatigue performance for long-term industrial reliability.

Application Areas

Construction machinery, injection molding machines, die-casting machines, metallurgical equipment, machine tools, test stands, material handling equipment, and industrial hydraulic systems requiring high-pressure double-acting push/pull control. Especially suitable for OEM equipment and retrofit projects.

Expert Maintenance Tips

Verify mounting surface flatness and alignment before installation to avoid side loading. Connect ports correctly and bleed air from the system. Regularly inspect seals and piston rod surface for wear. Use clean, compatible hydraulic fluid and maintain system filtration to ISO 4406 20/18/15. Avoid over-pressure or over-stroke operation. When replacing seals, use OEM or equivalent parts. For long-term storage, protect the piston rod with anti-rust oil.