CG-110.56×280 Rexroth Heavy Duty Hydraulic Cylinder

Product Overview

The HSG, CG, CD, CG110, CD350, CG250 and CG350 series (specific model CG-110.56×280.680.11) are heavy-duty high-pressure hydraulic oil cylinders featuring welded or tie-rod construction for high-pressure industrial and construction machinery applications. Fully interchangeable with Bosch Rexroth CD/CG series 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 

• Model: CG-110.56×280.680.11 (CG110 / CD350 / CG250 / CG350 series)
• Piston diameter: 110 mm
• Piston rod diameter: 56 mm
• Stroke: 280 mm (customizable)
• Acting type: Double-acting
• Construction: Heavy-duty mill-type / tie-rod
• Nominal pressure: 16–35 MPa (up to 350 bar depending on series)
• Operating temperature range: approx. –20…+80 °C
• Seal system: High-performance seals
• Test standards: Compliant with Rexroth related standards

Key Technical Advantages

• Heavy-duty high-strength construction: Premium steel and precision design support high-pressure operation, delivering excellent fatigue resistance and structural rigidity.
• Full interchangeability: Manufactured to exact Rexroth CD/CG series dimensions and mounting interfaces for true drop-in replacement, minimizing downtime.
• Precision machining and sealing system: Honed cylinder bore and hard-chrome plated 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

Excavators, construction machinery, metallurgical equipment, injection molding machines, die-casting machines, machine tools, test stands, 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 proper system filtration. 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.