Home / Rock Drill Parts / Montabert HC25 Rock Drill 86733243 Retainer Shank Suitable For Mining / Tunneling FT160C Air Leg

Montabert HC25 Rock Drill 86733243 Retainer Shank Suitable For Mining / Tunneling FT160C Air Leg

Precision-Engineered Retainer Shank for HC25 Rock Drills & FT160C Air Legs

Montabert HC25 retainer shank (Part No. 86733243) is a critical wear component designed for demanding underground and surface drilling operations. Made from hardened steel, it ensures exact shank alignment, absorbs high-frequency impact loads, and protects both the drill shank and FT160C air leg internals from premature wear and vibration damage.

Compatible exclusively with Montabert HC25 rock drills mounted on FT160C air legs, this OEM-spec part delivers reliability where downtime costs are highest — in mining, tunneling, and hard-rock construction.

Key Advantages

  • OEM-equivalent hardened steel construction for extreme abrasion and impact resistance
  • Precision-machined inner/outer tolerances ensure zero-play fit on HC25 shank and FT160C interface
  • Dual-function design: aligns shank + buffers shock transmission to air leg components
  • Reduces unplanned maintenance by up to 40% vs. non-spec replacements (field-verified)
  • Quick-swap geometry enables under-15-minute replacement without disassembling air leg
  • Certified to ISO 6892-1 tensile strength ≥1200 MPa and Rockwell C58–62 hardness

Applications

  • Underground hard-rock mining (stoping, development, raise boring)
  • Tunnel excavation with FT160C-mounted HC25 drills
  • Quarry and civil infrastructure drilling (bridge piers, dam foundations)
  • High-cycle maintenance programs for fleet operators
  • Retrofit upgrades for legacy HC25/FT160C installations

Technical Specifications

Part Number86733243
Compatible Drill ModelMontabert HC25
Compatible Air LegFT160C
MaterialHardened alloy steel (ISO 6892-1 compliant)
HardnessHRC 58–62
Weight1.85 kg

FAQ

Is this shank ring compatible with non-Montabert air legs?
No — it is engineered specifically for the FT160C air leg interface and HC25 shank geometry. Using it with other legs risks misalignment, accelerated wear, or failure.
What’s the recommended inspection interval?
Inspect every 200 operating hours or after 1,500 m of drilling in abrasive rock. Replace if groove depth exceeds 0.3 mm or if radial play >0.15 mm is detected.
Do you offer bulk pricing or OEM certification?
Yes — certified OEM documentation and volume discounts available for mining contractors and distributors. Contact our technical sales team with your fleet size and usage profile.

Detailed Description

The shank ring for the Montabert HC25 rock drill is an essential wear component designed to provide support and alignment for the drill shank during operation. It ensures efficient energy transfer while protecting both the shank and the internal components of the rock drill from excessive wear and misalignment. Below is a detailed description and introduction to the shank ring:

Description

The shank ring is typically constructed from high-strength, wear-resistant materials such as hardened steel or specialized alloys. It is precisely engineered to fit securely around the drill shank, providing a stable interface between the shank and the rock drill's internal components.

This component plays a dual role: it aligns the shank to ensure smooth operation and prevents damage to surrounding parts caused by vibration or excessive movement. The shank ring is subjected to significant stress and impact during operation, making its durability a critical factor in maintaining the efficiency and longevity of the HC25 rock drill.

Key Features

  1. Durable Material: Manufactured from hardened steel or high-grade alloys to withstand extreme forces and minimize wear.

  2. Precision Fit: Ensures a snug, secure connection with the shank, reducing vibration and preventing misalignment.

  3. Impact Resistance: Designed to absorb and distribute impact forces during drilling, protecting both the shank and the drill housing.

  4. Wear Protection: Acts as a buffer to prevent direct contact and wear between the shank and other critical components.

  5. Easy Replacement: Designed for quick and straightforward installation, reducing downtime during maintenance.

Applications

  • Shank Support: Provides stable support for the shank, ensuring efficient energy transfer during drilling.
  • Alignment Maintenance: Keeps the shank properly aligned with the internal components, reducing wear and increasing precision.
  • Component Protection: Prevents damage to internal components by absorbing impact and reducing vibration.

Introduction

The shank ring for the Montabert HC25 rock drill is an indispensable part of the system, ensuring stable and efficient operation. Its role in aligning and protecting the shank significantly contributes to the overall performance and reliability of the rock drill, particularly in demanding applications such as mining, tunneling, and construction.

Regular inspection and timely replacement of the shank ring are essential for maintaining the optimal performance of the HC25 rock drill. This simple yet critical component helps minimize downtime, extend the life of the equipment, and reduce maintenance costs.

Conclusion

The shank ring for the Montabert HC25 rock drill is a high-quality, wear-resistant component that plays a vital role in maintaining the performance and longevity of the drilling system. By providing shank alignment, impact resistance, and wear protection, the shank ring ensures that the HC25 operates reliably and efficiently, even in the harshest conditions. Its robust design and easy maintenance make it an essential part of any rock drill setup.

Ensure Uptime. Order Your HC25 Retainer Shank Today.

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