140H-8 2FY63BB200 Taiyo Heavy Duty Hydraulic Cylinder

Product Overview

The 140H and 140H-8R series (specific models 140H-8 2FY63BB200-AB, 140H-8 2FA40BB520-AC, 140H-8R 6FY40CB570-ADAF2-L) are Taiyo 140H-8 series heavy-duty double-acting hydraulic oil cylinders featuring tie-rod construction and high-performance cushioning for high-pressure industrial 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 

• Models: 140H-8 2FY63BB200-AB, 140H-8 2FA40BB520-AC, 140H-8R 6FY40CB570-ADAF2-L (140H / 140H-8 series)
• Bore diameter: φ40–φ63 mm (series covers φ32–φ250 mm)
• Stroke: 200 mm, 520 mm, 570 mm (customizable)
• Acting type: Double-acting single/double rod
• Construction: Tie-rod heavy-duty design
• Nominal pressure: 14 MPa (140 bar)
• Maximum allowable pressure: 18 MPa (depending on configuration)
• Working speed range: 8–400 mm/s (smaller bores)
• Seal system: High-performance seals (standard/switch type)
• Operating temperature range: Standard ambient
• Test standards: Compliant with Taiyo original specifications and JIS related standards

Key Technical Advantages

• High-performance cushion design: Built-in high-function cushion significantly reduces end-of-stroke shock, improving smooth operation and equipment life.
• Full interchangeability: Manufactured to exact Taiyo 140H-8 series dimensions and mounting interfaces for true drop-in replacement, minimizing downtime.
• Precision machining and sealing system: Premium steel tube and hard-chrome 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 heavy-duty 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 check cushion valve adjustment, seal condition 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.