Heavy-Duty Lip Seal for Hydraulic Rock Drills This lip seal is engineered to prevent fluid leakage in high-pressure hydraulic systems of rock drills, withstanding pressure surges, temperature fluctuations, and exposure to mining fluids. Its FKM rubber construction with a spring-loaded lip ensures reliable sealing in dynamic applications, protecting critical components like cylinders and valve bodies from contamination.
Key Technical Attributes
Material & Chemical Resistance:
FKM (fluorocarbon rubber) compound (ASTM D1418) offers exceptional resistance to mineral oils, hydraulic fluids (ISO 6743-4), and diesel. It retains 95% elasticity after 1000 hours of immersion in aggressive fluids, outperforming standard NBR seals in harsh environments .
Pressure & Temperature Performance:
Rated for 25MPa maximum working pressure, it maintains a tight seal during peak drilling loads. The -20°C to +200°C operating range ensures stability in cold underground mines and high-friction hydraulic circuits, where conventional seals would degrade .
Design & Durability:
The single-lip design with a spring energizer compensates for wear, maintaining sealing force over 5000 hours of operation. IT7 dimensional tolerance (ISO 3601-1) ensures a precise fit in R32 rock drill assemblies, reducing installation time and minimizing leakage risk .
Applications
Hydraulic Rock Drills: Seals piston rods and cylinder heads in R32 models.
Mining Equipment: Compatible with tunneling machines, quarry drills, and exploration rigs requiring dynamic sealing.
