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

Precision Copper Guidance for Demanding Rock Drilling

High-performance copper guide bushing engineered specifically for Montabert HC 28 rock drills. Made from premium self-lubricating copper alloy, this CA MBW brass ring leading bushing delivers precise shank alignment, minimizes friction and heat buildup, and significantly extends drill component life—even in abrasive mining, tunneling, and construction environments.

Designed for direct fit, rapid replacement, and zero compromise on OEM-level durability and performance.

Key Advantages

  • Exact-fit replacement for Montabert HC 28 — maintains OEM alignment tolerances
  • Self-lubricating copper alloy reduces maintenance frequency and eliminates grease dependency
  • Exceptional wear & corrosion resistance in high-dust, high-impact drilling conditions
  • Thermally stable design dissipates heat efficiently to protect shank and hammer assembly
  • Precision-machined brass ring geometry ensures consistent guidance and vibration damping
  • ISO-compliant manufacturing with traceable material certification (CuZn37)

Applications

  • Montabert HC 28 hydraulic rock drills
  • Underground mining & tunnel boring operations
  • Hard-rock quarrying and civil infrastructure drilling
  • Retrofit upgrades for aging HC 28 fleets requiring enhanced bushing longevity
  • High-cycle rental fleet maintenance programs

Technical Specifications

Model CompatibilityMontabert HC 28 (all variants)
MaterialCW508L (CuZn37) brass alloy, lead-free, self-lubricating
Dimensions (OD × ID × L)42.0 mm × 32.0 mm × 35.0 mm (±0.02 mm)
Hardness (HV)110–130 HV
Max Operating Temp220°C continuous
CertificationEN 13445-3 compliant; RoHS & REACH certified

FAQ

Is this bushing a direct OEM replacement for Montabert HC 28?
Yes — dimensionally and metallurgically validated against original Montabert CA MBW specifications. No modifications required.
Does it require additional lubrication during operation?
No. The CuZn37 alloy provides inherent self-lubrication; periodic dry inspection is sufficient under normal operating conditions.
What is the typical service life compared to standard steel bushings?
Up to 3× longer in comparable duty cycles — verified by field data from 12+ mining clients using HC 28 in granite and basalt.
Do you offer bulk pricing or technical support for fleet operators?
Yes — volume discounts start at 50 units; dedicated engineering support includes fitment verification and wear analysis reports.

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 Uninterrupted Drilling Performance

Order your certified HC 28 copper guide bushings today — ships within 24h from EU/US warehouses. Request a material test report or fitment guide.

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