Mill-Type Hydraulic Cylinders: CDH2, CGH2, and CSH2 Series for Heavy-Duty Industrial Applications

Mill-type hydraulic cylinders are engineered for rugged industrial environments where high force, reliability, and long service life are essential. The CDH2, CGH2, and CSH2 series—commonly associated with manufacturers like Bosch Rexroth—represent three distinct yet complementary designs within this category, each optimized for specific operational demands. All comply with international standards such as ISO 6020/2, ensuring global compatibility and ease of integration.

The CDH2 is a double-acting, piston-type cylinder featuring a differential design that enables faster extension speeds when used in differential circuits.

• Bore sizes: 40–250 mm
• Max pressure: 25 MPa (3600 psi)
• Hard-chromed, precision-ground piston rods for enhanced durability
• Optional features: cushioning, magnetic pistons for position sensing, and multiple ISO-standard mounts (flange, trunnion, foot)
• Ideal for: injection molding machines, mechanical presses, and automated assembly lines requiring efficient cycle times.

The CGH2 is a single-acting plunger cylinder built for ultra-high-pressure applications with short strokes and massive thrust.

• Operating pressure up to 70 MPa (10,000 psi)
• Simple plunger design—no internal piston or return seal
• Compact and lightweight relative to output force
• Typically mounted via MT-style interfaces (e.g., MT4)
• Retraction via external force or optional return spring
• Commonly used in: hydraulic test benches, crimping tools, jacks, and portable power units.

The CSH2 embodies the classic mill-type design with four heavy-duty tie rods, offering superior stability under heavy loads and side forces.

• Bore sizes up to 320 mm; strokes exceeding 3000 mm
• Double-acting operation with optional end-of-stroke cushioning
• Replaceable wear rings and seals for easy maintenance
• Excellent resistance to shock, vibration, and misalignment
• Widely deployed in: steel mills, foundries, shipbuilding, and large material handling systems.

• Robust Construction: High-strength steel barrels, hardened rods, and advanced sealing systems ensure long life even in harsh conditions.
• Modularity: Standardized dimensions and mounting options simplify replacement and system design.
• Customization: Options include position feedback (via magnetic pistons), special coatings, high-temperature seals, and corrosion protection.
• Proven Performance: Trusted globally in industries where downtime is costly and safety is critical.

The CDH2, CGH2, and CSH2 mill-type hydraulic cylinder series provide a versatile, reliable foundation for heavy-duty linear actuation. Whether your application prioritizes speed (CDH2), extreme pressure (CGH2), or structural rigidity (CSH2), these cylinders deliver engineered performance backed by decades of industrial use. Their standardization, durability, and adaptability make them a benchmark in hydraulic motion control worldwide.

Interested in learning more about industry trends and solutions? Contact Melody: sale@guoyuehydraulic.com/WhatsApp +8615852701381