ISO 683-17 Grade 42CrMo4 Hydraulic Damping Piston Engineered to mitigate vibration and stabilize hydraulic systems in extreme underground drilling environments, this piston ensures reliable performance in high-pressure applications.
Technical Specifications & Design Constructed from ISO 683-17 Grade 42CrMo4 quenched and tempered steel, the piston offers exceptional resistance to fatigue and wear, with a tensile strength of 1080 MPa. The single-acting design features a 120 mm stroke length (SAE J1995 compliant), allowing precise control of hydraulic fluid flow during compression and rebound cycles. NPT 1/2″ threaded ports (ISO 7-1 compliant) ensure compatibility with standard hydraulic hoses and fittings.
Performance Advantages
Pressure Stability: Maintains consistent damping force at 350 bar continuous pressure, with a 420 bar burst pressure rating for safety redundancy (ISO 6020/1 compliant).
Wear Resistance: Chrome-plated surface (Ra ≤0.8μm) and PTFE-coated NBR seals reduce friction and extend service life in abrasive drilling conditions.
Temperature Resilience: Operates reliably in -20°C to +80°C environments, making it suitable for arctic and high-temperature mining applications.
Applications
Underground Drilling: Ideal for Epiroc RD 18U hydraulic drifters, controlling shock absorption in rock drilling and tunneling operations.
Heavy Machinery: Used in excavators and loaders to stabilize hydraulic cylinders during impact-driven tasks.
Industrial Hydraulics: Supports material handling systems and presses, providing vibration dampening in high-frequency operations.
