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Part Number 86374055 Accumulator Cover For Montabert HC109 Rock Drill

Precision-Engineered Accumulator Cover for Reliable HC109 Performance

Part No. 86374055 is a high-strength alloy steel accumulator cover engineered exclusively for the Montabert HC109 rock drill. It provides critical sealing of the hydraulic accumulator chamber—maintaining nitrogen pressure, preventing fluid leakage, and shielding internal components from vibration, shock, contamination, and wear in demanding mining, tunneling, and construction applications.

Designed for exact dimensional and functional compatibility, this OEM-spec replacement ensures stable energy storage, consistent impact performance, and extended hydraulic system service life.

Key Advantages

  • OEM-equivalent precision fit for Montabert HC109 hydraulic accumulator assembly
  • Forged from high-strength alloy steel to resist extreme pressure, vibration, and impact
  • Ensures leak-tight sealing between nitrogen gas and hydraulic fluid chambers
  • Protects accumulator internals from debris, moisture, and mechanical damage
  • Validated for continuous operation in underground mining and hard-rock tunneling
  • Reduces unplanned downtime and extends accumulator service intervals

Applications

  • Montabert HC109 rock drill hydraulic accumulator systems
  • Underground mining drilling rigs requiring pressure stability
  • Hard-rock tunnel boring and foundation drilling operations
  • Heavy-duty construction equipment with hydraulic impact mechanisms
  • Aftermarket maintenance programs for aging HC109 fleets

Technical Specifications

Part Number86374055
Compatible ModelMontabert HC109 Rock Drill
MaterialHigh-strength alloy steel (quenched & tempered)
Surface TreatmentBlack oxide coating for corrosion resistance
Sealing InterfacePrecision-machined O-ring groove (NBR standard)
Weight1.8 kg (±0.05 kg)

FAQ

Is this cover compatible with other Montabert models?
No — Part No. 86374055 is dimensionally and functionally validated only for the HC109. It is not interchangeable with HC105, HC112, or other series.
Does it include the O-ring or gasket?
No — the O-ring is sold separately (recommended part: NBR-86374055-OR). Always replace the sealing element during installation.
What is the typical lead time for bulk orders?
Standard lead time is 3–5 business days for in-stock units; custom batches (≥50 pcs) ship within 12 working days.
How does this cover improve system reliability?
By maintaining precise accumulator chamber pressure and preventing contamination, it stabilizes piston stroke timing and reduces hammer misfires by up to 40%.
Is it certified to ISO or SAE standards?
Yes — manufactured per ISO 8533 (hydraulic components) and tested to SAE J1289 pressure cycling requirements.

Detailed Description

Accumulator Cover (Part No. 86374055) – Suitable for Montabert HC109 Rock Drill

The Accumulator Cover, part number 86374055, is a durable and precision-engineered component designed for the Montabert HC109 rock drill. It forms the protective enclosure for the hydraulic accumulator assembly, helping to maintain system pressure, protect internal elements, and ensure consistent impact performance.

Description

The accumulator cover is manufactured from high-strength alloy steel to withstand the high pressures, vibration, and impact forces typical in heavy-duty rock drilling operations. It seals the accumulator chamber — where nitrogen gas and hydraulic fluid interact — ensuring pressure is maintained and leakage is prevented.

Proper function of the accumulator cover is essential for stable energy storage and release, which directly influences the efficiency and reliability of the impact mechanism. Its robust design also protects the internal accumulator components from contamination, damage, and wear.

Key Features

  • Part Number: 86374055

  • Compatible With: Montabert HC109 rock drill

  • Material: High-strength alloy steel

  • Function:

    • Seals and protects the hydraulic accumulator assembly

    • Maintains internal pressure and prevents leakage

    • Shields internal parts from debris and impact damage

  • Durability: Built for harsh drilling conditions — vibration, shock, and high pressure

  • Precision Fit: Designed for exact compatibility with HC109 hydraulic accumulator components

Applications

  • Hydraulic Accumulator Systems – Maintains pressure balance and energy storage

  • Impact Mechanisms – Supports consistent piston movement

  • Mining, Tunneling, Construction – Ensures dependable performance under heavy use

Conclusion

The Accumulator Cover (86374055) is an essential protective component for the Montabert HC109 rock drill. Its rugged alloy steel construction, precision sealing capability, and pressure-handling performance make it vital for stable drilling operation, reduced maintenance, and extended service life of the hydraulic system.

Ensure HC109 Hydraulic Integrity

Order genuine-spec 86374055 accumulator covers today — backed by 24-month warranty and technical support.

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