High-Temperature Resistant EPDM Rubber O-Ring for Hydraulic Rock Drills Engineered for extreme underground mining conditions, this O-ring ensures reliable sealing in high-vibration hydraulic rock drill applications. Constructed from Ethylene Propylene Diene Monomer (EPDM) rubber with a zinc-plated steel reinforcement ring, it withstands continuous dynamic loads up to 30 bar while resisting oil and abrasion in harsh environments .
Technical Specifications & Design The O-ring features a 25 mm inner diameter (ISO 3601 tolerance) and 32 mm outer diameter, designed for secure mounting in hydraulic cylinder assemblies and drill rig components. Its Shore A 70 hardness provides optimal balance between flexibility and structural integrity, reducing the risk of extrusion under high pressure 519. The zinc-plated steel ring enhances dimensional stability, ensuring consistent performance even in repetitive impact scenarios.
Performance Advantages
Vibration Resistance: Textured surface design minimizes slippage during high-frequency oscillations, maintaining seal integrity in dynamic systems.
Temperature Stability: Operates reliably from -40°C to +150°C, suitable for both cold climates and high-heat drilling environments 517.
Longevity: EPDM rubber compound and steel reinforcement extend service life by 20% compared to standard non-reinforced O-rings, reducing downtime in critical mining operations.
Chemical Resistance: Resistant to mineral oils, alkalis, and mild acids, making it suitable for hydraulic systems using biodegradable or synthetic fluids 1718.
Applications
Underground Mining: Critical for sealing hydraulic connections in rock drills used in tunnel boring and ore extraction.
Heavy Machinery: Used in excavators and loaders to prevent fluid leaks in high-pressure hydraulic systems.
Industrial Hydraulics: Supports presses and material handling equipment, ensuring precision in repetitive motion tasks.
