Seal 86307162 | High-Durability for Hydraulic Rock Drills
FKM (Viton) rubber compound | Single-lip design | 6mm cross-section (ISO 3601-1)
Montabert 86307162 Seal for Hydraulic Rock Drills – FKM Material, 25MPa Pressure, -20°C to +200°C

Seal 86307162 | High-Durability for Hydraulic Rock Drills

Part Number: 86307162
  • Technical Specifications:
    • Material: FKM (fluorocarbon rubber) compound (ASTM D1418)
    • Pressure Rating: 25MPa (3626 psi) maximum working pressure
    • Temperature Range: -20°C to +200°C (-4°F to +392°F)
    • Compliance: ISO 3601-1 (size & tolerance standards)
  • Design Features:
    • Cross-Section: 6mm (±0.08mm tolerance per ISO 3601-1)
    • Hardness: 70 Shore A (±5 Shore A)
    • Seal Type: Single-lip for static/dynamic sealing
  • Performance Metrics:
    • Compression Set: ≤20% (after 70h at 200°C, ASTM D395)
    • Service Life: 6000 hours under rated conditions
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Heavy-Duty Seal for Hydraulic Rock Drills
This seal is engineered to prevent fluid leakage in hydraulic systems of rock drills, withstanding high pressure, temperature fluctuations, and exposure to mining fluids. Its robust FKM construction ensures reliable performance in harsh drilling environments, reducing maintenance downtime and protecting critical components like cylinders and valves.

 

Technical Specifications & Design

 

  • Material & Chemical Resistance:
    • Constructed from FKM (fluorocarbon rubber) compound, compliant with ASTM D1418, offering exceptional resistance to mineral oils, hydraulic fluids (ISO 6743-4), and diesel. This material retains 94% elasticity after 1000 hours of immersion in aggressive fluids, outperforming standard NBR seals .
    • The -20°C to +200°C operating range ensures stability in cold underground mines and high-friction hydraulic circuits, maintaining seal integrity across extreme temperatures .
  • Precision & Sealing Performance:
    • 6mm cross-section with ±0.08mm tolerance (ISO 3601-1) ensures a tight fit in ISO 3601-3 seal grooves, minimizing wear and preventing leaks at pressures up to 25MPa. The 70 Shore A hardness balances flexibility and durability, resisting extrusion under high pressure .
    • Ra 0.4μm surface finish reduces friction in dynamic applications, extending service life to 6000 hours under rated conditions .
  • Environmental Adaptability:
    • Resistant to ozone, humidity, and abrasive contaminants, making it suitable for dusty mining environments. Its single-lip design simplifies installation while maintaining effective sealing in both static and low-speed dynamic applications .

 

Applications

 

  • Hydraulic Rock Drills: Seals hydraulic connections in drill impact mechanisms, feed systems, and rotary drives.
  • Mining Equipment: Compatible with tunneling machines, quarry drills, and mineral exploration rigs.
  • Industrial Hydraulics: Suitable for heavy-duty pumps, valves, and cylinders in high-pressure systems.

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