The shank adapter is a part connected with a rock drill at one end and a drill rod at the other end. It is an important part of rock drills and drilling tools. It is mainly used in mining operations, using high-quality alloy steel as raw material, and has undergone overall carburizing treatment. Special CNC ensures quality of shank, internal water holes, and side water holes. The shank adapter is uniformly heat treatment and scientifically straightened with precision instruments to ensure straightness and resistance. The working environment is harsh, so the quality and performance requirements of the shank adapter are very strict.
Working Principle:
During the rock drilling operation, the rock drill transmits the impact energy and rotational torque to the rock drilling tools through the shank adapter and the rock is broken by the drill bit. In the rock drilling operation, the shank adapter not only bears the high-frequency impact and strong torsion of the rock drill but also suffers corrosion and wear by the mineral water and slag.
As one of the supporting drilling tools for rock drilling, the drill shank has a definite internal relationship between its thread structure and the connecting thread structure and precision of the supporting drilling tools. It should meet the requirements of convenient loading and unloading, labor saving, reliable connection, good wear resistance, and high service life during use.
Kelleg’s shank adapters are made of high-quality alloy steel and advanced heat treatment to ensure our reliable quality. At the same time, we provide high-quality shank adapters for most brands of rock drills.
Shank adapter includes two types: shank adapter for pneumatic guide rock drill and hydraulic rock drill shank adapter.
At present, there are more than 200 kinds of rock drilling machines of various types, and different types of rock drilling machines need to choose different shank adapters.
Shank Adapter Type
Shank adapter for pneumatic guide rock drill: It is suitable for the small rock drill and can be operated manually.
Shank adapter for Atlas Copco rock drill: It is suitable for Atlas Copco rock drill, one of the most commonly used rock drills.
Shank adapter for Sandvik/Tamrock rock drill: It is suitable for Sandvik/Tamrock rock drill, one of the most commonly used rock drills.
Thread size
- R28
- R32
- R35
- R38
- T38
- T45
- T51
Our shank adapters are suitable for different equipment, such as Sandvik, Atlas Copco, and Furukawa.
What are the types of shank adapter?
There are three types of shank adapters: flange-type shank adapters, lug-type shank adapters, and spline adapters.
How to improve the service life of the shank adapter?
- Ensure the machining quality of recess of thread portion and the circular arc transition of sealing ring groove.
- The good carburizing heat treatment process ensures high notch impact bending fatigue strength of shank adapter material.
What is the design principle of the shank adapter?
- Meet the requirements of high frequency, high power impact, and rotating stress of rock drill.
- It is necessary to consider the accuracy of the geometry and dimensions of the cylinder liner of the rock drill.
What is the typical process of the shank adapter?
Raw material inspection – Cutting to length – Straightening – Forging blank – Softening annealing – Machining – Heat treatment – Surface cleaning – Grinding outer circle – Anticorrosion – Packaging – Storage.
| Rock Drill | Thread | Length (mm) | Weight (kg) | Flushing Hole (mm) |
| Atlas Copco BBC 43, BBC 44, BBC 45, BBC 100 | R32 | 380 | 2.2 | 10 |
| Atlas Copco BBC 51, BBC 52, BBC 54, BBC 120 | R32 T38 | 380 390 | 2.9 3.4 | 10 10 |
| Atlas Copco BBC 57 | T38 | 538 | 5.6 | 14 |
| Atlas Copco COP 125, COP 130, COP 131 | T38 | 380 | 3.3 | 14 |
| Atlas Copco COP 1032HD | R32 T38 | 340 340 | 3.7 4.4 | — — |
| Atlas Copco COP 1032 | R32 R35 R38 T38 | 550 550 550 550 | 5.3 5.6 5.7 5.7 | — — — — |
| Atlas Copco COP 1036 COP 1038HB | R32 T38T45 | 550 550550 | 4.3 4.75.3 | — —— |
| Atlas Copco COP 1038HD COP 1238 | R32 R38 T38 | 485 485 485 | 4.3 4.5 4.5 | — — — |
| Atlas Copco COP 1038HL | R32 T38T45 | 575 575575 | 4.9 5.26.1 | — —— |
| Atlas Copco COP 1238 | R32 | 500 | 4.0 | — |
| T38 | 500 | 4.4 | — | |
| R38 | 485 | 4.2 | — | |
| T38 | 485 | 4.2 | ||
| T45 | 500 | 5.0 | — | |
| R32 | 575 | 4.9 | ||
| R38 | 575 | 5.0 | — | |
| T38 | 575 | 5.2 | ||
| T38 | 575 | 5.7 | ||
| T45 | 575 | 6.1 | — | |
| Atlas Copco COP 1432 COP 1532, COP 1440, COP 1838 HD, COP 1838 ME | R32 | 435 | 3.9 | — |
| R38 | 435 | 4.2 | — | |
| T38 | 435 | 4.2 | ||
| R32 | 525 | 4.8 | — | |
| T38 | 525 | 5.0 | ||
| Atlas Copco COP 1432， COP 1532 | R32 | 341 | 4.7 | — |
| R38 | 341 | 5.2 | ||
| Atlas Copco COP 1550， COP 1838ME/HE | T38 | 525 | 6.2 | — |
| T45 | 525 | 6.4 | — | |
| T51 | 525 | 6.8 |
Atlas Copco, Boart and Furukawa
| Rock Drill | Thread | Length (mm) | Weight (kg) | Flushing Hole (mm) |
| Atlas Copco COP 1550 E×, COP 1838 E× | T38 | 730 | 10.1 | — |
| T45 | 730 | 10.5 | — | |
| T51 | 730 | 10.7 | — | |
| Atlas Copco COP 1840HE COP 1850 | T45 | 565 | 7.2 | — |
| T51 | 565 | 7.4 | — | |
| Atlas Copco COP 2150PG | T51 | 770 | 11.2 | — |
| Atlas Copco COP 2160E× | T45 | 770 | 13.2 | — |
| T51 | 770 | 13.3 | — | |
| Atlas Copco COP 4050E× | ST68 | 805 | 69.6 | — |
| Atlas Copco COP 4050MU× | ST68 | 835 | 69.9 | — |
| Boart HD 125, HD 150, HD 160 | R38 | 495 | 5.6 | — |
| T38 | 495 | 5.6 | — | |
| Furukawa M 120, PD 200 | R32 | 330 | 3.6 | 14.3 |
| R38 | 350 | 3.8 | 14.3 | |
| T38 | 380 | 4.0 | 14.3 | |
| T38 | 446 | 4.3 | 14.3 | |
| Furukawa PD 200R | T38 | 484 | 4.0 | 14.3 |
| T45 | 484 | 4.3 | 14.3 | |
| Furukawa HD 260, HD 300 | T38 | 655 | 7.8 | 16.0 |
| T45 | 655 | 7.8 | 16.0 |
Furukawa, Gardner—Denver, Ingersoll—Rand and Montabert
| Rock Drill | Thread | Length (mm) | Weight (kg) | Flushing Hole (mm) |
| Furukawa HD 609 | T38 | 620 | 6.2 | — |
| T38 | 690 | 6.5 | — | |
| T45 | 620 | 6.9 | — | |
| Furukawa HD 612 | T45 | 710 | 9.2 | — |
| Furukawa HD 712 | T45 | 788 | 11.2 | — |
| Gardner-Denver PR 123 | R32 | 380 | 3.6 | 14.3 |
| R38 | 380 | 3.9 | 14.3 | |
| T38 | 380 | 3.9 | 14.3 | |
| T45 | 380 | 4.2 | 14.3 | |
| Ingersoll-Rand URD475, URD550, VL120, EVL130, VL140, F16 | R32 | 330 | 3.6 | 14 |
| R38 | 350 | 3.8 | 14 | |
| T38 | 380 | 4.0 | 14 | |
| T38 | 446 | 4.3 | 14 | |
| Ingersoll-Rand YH 65, YH 80 | T38 | 500 | 5.8 | 19 |
| T45 | 500 | 6.1 | 19 | |
| Ingersoll-Rand YH 65 RP, YH 70 RP, YH 75 RP, YH80 RP, | T45 | 700 | 8.0 | 19 |
| Montabert HC 40 | R32 | 447 | 3.9 | — |
| R38 | 447 | 4.1 | — | |
| T38 | 447 | 4.1 | — | |
| Montabert HC 40 | R32 | 270 | 4.1 | — |
| R38 | 320 | 4.4 | — |
| Rock Drill | Thread | Length (mm) | Weight (kg) | Flushing Hole (mm) |
| Montabert HC 80, HC 90, HC 105, HC 120, | R32 | 440 | 5.1 | — |
| R38 | 440 | 5.3 | — | |
| T38 | 440 | 5.3 | — | |
| T38 | 500 | 5.8 | — | |
| Montabert H 100 | T38 | 540 | 5.6 | 14 |
| Montabert HC 120， HC 150 | T45 | 490 | 5.9 | — |
| Montabert HC 80R, HC 120R, HC 150R | T45 | 670 | 8.3 | — |
| T51 | 670 | 8.3 | — | |
| Montabert HC 200 | T51 | 840 | 13.9 | — |
| T60 | 840 | 14.2 | — | |
| SIG HBM 50， HBM 100， HBM 120 | R32 | 340 | 3.7 | — |
| SIG HBM 100， HBM 120 | R38 | 340 | 4.4 | — |
| SIG HBM 50， HBM 100， HBM 120 | R32 | 550 | 5.3 | — |
| SIG HBM 101 | R38 | 500 | 4.6 | — |
| Rock Drill | Thread | Length (mm) | Weight (kg) | Flushing Hole (mm) |
| Montabert HC 80, HC 90, HC 105, HC 120, | R32 | 440 | 5.1 | — |
| R38 | 440 | 5.3 | — | |
| T38 | 440 | 5.3 | — | |
| T38 | 500 | 5.8 | — | |
| Montabert H 100 | T38 | 540 | 5.6 | 14 |
| Montabert HC 120， HC 150 | T45 | 490 | 5.9 | — |
| Montabert HC 80R, HC 120R, HC 150R | T45 | 670 | 8.3 | — |
| T51 | 670 | 8.3 | — | |
| Montabert HC 200 | T51 | 840 | 13.9 | — |
| T60 | 840 | 14.2 | — | |
| SIG HBM 50， HBM 100， HBM 120 | R32 | 340 | 3.7 | — |
| SIG HBM 100， HBM 120 | R38 | 340 | 4.4 | — |
| SIG HBM 50， HBM 100， HBM 120 | R32 | 550 | 5.3 | — |
| SIG HBM 101 | R38 | 500 | 4.6 | — |
More Than 50+ Companies Have Trusted Us For Quality
We are proud to provide high-quality rock drilling tool solutions that deliver reliable performance in demanding working conditions.
Rock Tools Applications
Trusted Rock Drilling Tools for Mining, Tunneling, Quarrying, and Hydropower Construction
Rock Tools in Mining
High-performance rock drilling tools for mining operations, designed to deliver fast penetration, long tool life, and lower drilling costs in hard-rock conditions.
Rock Tools in Tunneling
Reliable rock drilling tools for tunneling projects, ensuring precise excavation, safety, and efficiency across complex geological formations.
Rock Tools in Quarrying
Durable rock drilling tools for quarrying, helping you achieve clean blast holes, stable productivity, and reduced cost per meter drilled.
Rock Tools in Hydropower Project
Rock drilling tools engineered for hydropower construction, providing accurate and stable drilling for foundations, anchors, and structural support.
Quality Management Process
At Kelleg, quality control is built into every stage of production — from raw material sourcing to final inspection. Our rigorous Quality Management Process ensures stable performance, long service life, and reliable drilling results for every tool we deliver.
Supplier Management
We carefully evaluate and monitor our raw material suppliers to ensure stable quality from the very beginning of production.
Incoming Material Inspection
All incoming steel and carbide materials are strictly inspected for composition, hardness, and dimensional accuracy before entering production.
In-process Inspection
Key manufacturing steps are continuously monitored and measured to ensure every part meets design tolerances and performance standards.
Final Product Inspection
Each finished product undergoes comprehensive testing and inspection before shipment to guarantee consistent reliability on site.
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DTH Drilling Tools
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Casing System
Reliable casing systems that provide stability and safety for boreholes, supporting smooth drilling operations while protecting equipment and maximizing productivity in various rock and soil conditions.
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