O-Ring 3115336502 for Epiroc RD18U Hydraulic Rock Drill | High-Quality Replacement Part
Close-Up of Pressure-Resistant Lip Design on O-Ring 3115336502 for RD18U Hydraulic Systems
Premium Nitrile Rubber Texture of Piston Seal 3115336503 for Rock Drill Hydraulic Cylinders
Installation Dimensions (65mm ID x 85mm OD x 12mm Height) of Piston Seal 3115336503 for RD18U Drills

Cup Seal-3115336500 For RD18U Hydraulic Rock Drill High-Pressure Seal

  • Part Number: 3115336500
  • Material: Nitrile Rubber (NBR), Shore A hardness 85±5
  • Pressure Rating: Up to 35 MPa (5075 PSI) continuous, 40 MPa (5800 PSI) peak
  • Temperature Range: -25°C to +100°C (-13°F to +212°F)
  • Dimensions:
  • Compatibility: Designed for hydraulic cylinders and piston assemblies in RD18U-series rock drills
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High-Performance Cup Seal for Hydraulic Rock Drills —— Model RD18U
Key Features & Technical Specs
This cup seal (part number 3115336500) is engineered for critical sealing applications in hydraulic rock drills, specifically designed to withstand high-pressure environments in underground mining and tunnel construction. Constructed from industrial-grade nitrile rubber (NBR), it offers superior resistance to abrasion, oil, and thermal stress, ensuring reliable performance equivalent to OEM standards.
Benefits
  1. Durable Sealing Design
    • Double-lip configuration (primary and secondary seals) provides bidirectional pressure resistance, preventing hydraulic fluid leakage and external contaminant ingress.
    • Precision-machined edges with radiused corners (R0.3-R0.5mm) reduce friction and metal-to-metal wear, extending component lifespan by up to 30%.
  2. Rugged Environment Suitability
    • Tested for compatibility with mineral-based hydraulic oils and synthetic fluids commonly used in mining equipment.
    • Resistant to ozone, humidity, and particulate matter, making it ideal for harsh underground conditions.
Applications
  • Hydraulic rock drill maintenance: Direct replacement for worn seals in 冲击机构 (impact mechanisms) and rotary motors.
  • Mining and tunneling projects: Suitable for hardrock drilling, shaft sinking, and roadway development.
  • Industrial equipment retrofits: Interchangeable with similar-sized cup seals in heavy machinery hydraulic systems.

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