HQS26SD63N65T Taiyo HQS2 Compact Hydraulic Cylinder

Product Overview

The HQS, HQS26, 140H, 70H and CDM1MP5 series (specific model HQS26SD63N65T) are Taiyo HQS2 series compact high-pressure hydraulic oil cylinders featuring special aluminum alloy body construction and precision manufacturing for space-constrained high-pressure applications. Fully interchangeable with original Taiyo 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: HQS26SD63N65T (HQS2 / 140H / 70H / CDM1 related series)
• Bore diameter: φ63 mm (series covers φ20–φ100 mm)
• Stroke: 65 mm (customizable)
• Acting type: Double-acting single rod
• Construction: Compact aluminum alloy body design
• Nominal pressure: Up to 16 MPa (160 bar, depending on operating frequency)
• Piston rod thread: T (male thread)
• Seal system: High-performance wear-resistant seals
• Operating temperature range: –10…+70 °C (standard)
• Test standards: Compliant with Taiyo original specifications and ISO 16656-related standards

Key Technical Advantages

• Lightweight compact high-strength construction: Special aluminum alloy body and special copper alloy bearings deliver high output force and excellent wear resistance within limited space.
• Full interchangeability: Manufactured to exact Taiyo HQS2 and 140H/70H series dimensions and mounting interfaces for true drop-in replacement, minimizing downtime.
• Precision machining and sealing system: Precision-machined tube and hard-chrome plated piston rod combined with wear-resistant 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

Injection molding machines, die-casting machines, machine tools, automation equipment, test stands, material handling equipment, and industrial hydraulic systems requiring compact 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.