Home / Rock Drill Parts / C CA MBW Brass Ring Leading Bushing Copper Montabert HC 28 Rock Drill

C CA MBW Brass Ring Leading Bushing Copper Montabert HC 28 Rock Drill

Precision Copper Guide Bushing for Montabert HC 28 — Engineered for Durability, Alignment & Low-Friction Performance

High-performance copper guide bushing designed exclusively for Montabert HC 28 rock drills. Precision-machined from wear-resistant brass-copper alloy, this self-lubricating ring leading bushing ensures optimal shank alignment, minimizes friction and heat buildup, and significantly extends drill component life — even in demanding mining, tunneling, and construction environments.

Features tight-tolerance fit, corrosion resistance, and simplified field replacement to reduce downtime and maintenance costs.

Key Advantages

  • Precision-fit brass-copper alloy construction for exact Montabert HC 28 compatibility
  • Self-lubricating surface reduces need for external grease and prevents dry-running wear
  • Superior wear and corrosion resistance in abrasive, high-impact drilling conditions
  • Optimized thermal conductivity to dissipate heat and prevent shank galling
  • Maintains consistent shank alignment for improved drilling accuracy and bit life
  • Drop-in replacement design — no special tools or recalibration required

Applications

  • Montabert HC 28 hydraulic rock drills (primary application)
  • Underground mining and hard-rock tunneling operations
  • Quarry drilling with high-cycle, high-load duty cycles
  • Construction-grade rock excavation and foundation drilling
  • Retrofit upgrades for legacy Montabert HC series equipment
  • OEM and aftermarket service kits for drilling contractors

Technical Specifications

Model CompatibilityMontabert HC 28 only
MaterialCDA 145 (Leaded Copper Alloy) / High-Purity Brass Ring
Hardness (HB)65–75 HB
Max Operating Temp220°C continuous
Tolerance±0.01 mm (ID/OD)
Surface FinishRa 0.4–0.8 µm (mirror-polished inner bore)

FAQ

Is this bushing compatible with other Montabert models like HC 30 or HC 35?
No — this part is dimensionally and toleranced specifically for the HC 28. Using it on other models may cause misalignment, premature wear, or failure.
Do I need to apply additional lubricant during installation?
Not required — the copper alloy’s inherent self-lubricating properties provide sufficient film formation. Light oil application is optional for initial break-in.
What is the typical lead time for bulk orders?
Standard lead time is 5–7 business days for in-stock items; custom batches (≥50 pcs) ship in 12–18 days with full QA certification.
How does this compare to standard steel or bronze bushings?
Copper alloy offers 40% lower coefficient of friction vs. bronze and superior heat dissipation vs. steel — critical for sustained HC 28 duty cycles.

Detailed Description

The copper guide bushing, or copper guide sleeve, is a vital component in rock drills, including Montabert models, designed to guide and support the shank or drill bit during operation. It ensures smooth movement and helps maintain alignment, reducing wear and improving the longevity of the drilling equipment. Below is a detailed description and introduction to the copper guide bushing:

Description

The copper guide bushing is typically made from high-quality copper or a copper alloy, chosen for its excellent wear resistance, low friction, and self-lubricating properties. This component is designed to fit snugly around the shank or other moving parts of the drill, providing support and reducing friction between moving metal components.

Its primary function is to guide the drill shank or bit, keeping it properly aligned as it moves during drilling. This helps to ensure precision in drilling operations while also preventing excessive wear on the shank and other critical parts. Copper's natural lubricating properties help to reduce friction and heat buildup, contributing to smoother operation and a longer lifespan for the drill components.

Key Features

  1. Smooth Guidance and Alignment: The copper guide bushing provides precise guidance for the drill shank or bit, ensuring that it remains properly aligned during operation, improving drilling accuracy and performance.
  2. Wear-Resistant Material: Made from high-grade copper or copper alloys, the bushing offers excellent resistance to wear and corrosion, providing durability even in harsh drilling environments.
  3. Low Friction and Heat Reduction: Copper’s natural low-friction properties help minimize friction between the moving parts, reducing heat buildup and extending the life of both the bushing and the drill components.
  4. Self-Lubricating Properties: The self-lubricating nature of copper minimizes the need for additional lubrication, simplifying maintenance and ensuring consistent performance over time.
  5. Easy Replacement: The copper guide bushing is designed for easy installation and replacement, reducing downtime during maintenance and keeping the equipment operational.

Introduction

The copper guide bushing is a critical component in Montabert rock drills, providing essential guidance and support for the shank or drill bit. Its role in maintaining alignment and reducing friction helps to ensure smooth and efficient drilling operations, while also protecting other critical components from excessive wear.

In high-stress environments such as mining, construction, and tunneling, where drilling equipment is exposed to dust, debris, and constant impact, the copper guide bushing plays a key role in extending the life of the machinery. Its durability, wear resistance, and self-lubricating properties make it an ideal choice for reducing maintenance needs and improving the overall reliability of the drill.

In summary, the copper guide bushing is a crucial part of the drilling system, offering precise guidance, durability, and low friction to ensure optimal performance. Its robust design and material properties help to extend the service life of both the bushing and the drill, making it indispensable for maintaining high productivity and reducing downtime in demanding drilling applications.

Ensure Optimal HC 28 Performance

Order genuine-spec copper guide bushings — backed by ISO 9001 manufacturing, 12-month warranty, and technical support from rock drill specialists.

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