KATDRILLS Friction Bolt System
Friction stabilizer (slit rock bolt)has many advantages such as initiative reinforce,surrounding rock with full bolt,reinforce anchor immediately and etc. The bolt is installed in a hole which has smaller diameter than it. It can immediately process radial pressure to the hole to prevent rock falling. When surrounding rock is shacked by explosion, anchor capacity increased higher and supporting effect is perfect.
Ø33 mm (MF33 Split Set Bolt)
|
Code |
Bolt Description |
Diameter |
Length |
Weight |
|
(mm) |
(mm) |
(Kgs) |
||
|
MF33-0600 |
Split Set Bolt 33-600 |
33 |
600 |
1.00 |
|
MF33-0900 |
Split Set Bolt 33-900 |
33 |
900 |
1.50 |
|
MF33-1200 |
Split Set Bolt 33-1200 |
33 |
1200 |
2.00 |
|
MF33-1500 |
Split Set Bolt 33-1500 |
33 |
1500 |
2.50 |
|
MF33-1800 |
Split Set Bolt 33-1800 |
33 |
1800 |
3.00 |
Ø47 mm (MF47 Split Set Bolt)
|
Code |
Bolt Description |
Diameter |
Length |
Weight |
|
(mm) |
(mm) |
(Kgs) |
||
|
MF47-0900 |
Split Set Bolt 47-900 |
47 |
900 |
2.50 |
|
MF47-1800 |
Split Set Bolt 47-1800 |
47 |
1800 |
5.10 |
|
MF47-2100 |
Split Set Bolt 47-2100 |
47 |
2100 |
6.10 |
|
MF47-2400 |
Split Set Bolt 47-2400 |
47 |
2400 |
6.70 |
|
MF47-3000 |
Split Set Bolt 47-3000 |
47 |
3000 |
8.60 |
How to choose the right Friction series?
|
Model |
Outer Diameter (mm) |
Applicable Surrounding Rock |
Initial Anchoring Force (ton) |
Features & Advantages |
|
MF30 |
30 |
Soft rock strata, shallow support |
3–5 |
Light weight, easy installation, suitable for temporary support. |
|
MF33 |
33 |
Mediumhard rock strata |
4–6 |
Cost-effective, widely used in coal mine roadways. |
|
MF40 |
40 |
Relatively hard rock, tunnel engineering |
5–7 |
Strong anchoring force, good stability. |
|
MF43 |
43 |
Highstress roadways, fractured zones |
6–7 |
Mainstream specification in the industry, wide adaptability. |
|
MF46 / MF49 |
46 / 49 |
Extremely hard rock, deephole support |
Over 7 |
Reinforced design, suitable for complex geological conditions. |
Application
The MF33 Friction bolt series is mainly used for roadway support in coal mines and metal mines.
It is suitable for medium‑hard surrounding rock and can be used for both temporary and permanent support.
It is also widely applied in tunnel construction and small‑to‑medium slope stabilization, with reliable anchoring performance and high cost‑effectiveness.

Advantages
- Provides immediate anchoring force after installation, enabling timely and effective surrounding rock support.
- Features simple and fast installation without resin or mortar, greatly improving construction efficiency.
- Delivers reliable full‑length friction anchoring, with stable and durable support performance.
- Offers high cost‑performance, widely used in roadway support for coal mines and metal mines.
- Perfectly adapts to medium‑hard rock formations, suitable for both temporary and permanent support.
Our Service
At KAT Drilling Tools, we deliver customer-centric solutions for mining, construction, exploration, and oil & gas sectors-covering the full drill tool lifecycle.
Customized Design & Manufacturing
Bespoke drill bits/rods tailored to your drilling conditions, compliant with API/ISO standards. Rapid prototyping and batch production available.
Quality Control & Testing
Rigorous raw material, in-process, and final performance inspections. Detailed quality reports for every batch.
Technical Consultation & Support
Expert advice on tool selection, on-site training, and real-time troubleshooting to minimize downtime.
After-Sales Maintenance & Repair
Cost-effective maintenance, professional repair, and fast spare parts supply to extend tool lifespan.
Logistics & Supply Chain
Flexible delivery (bulk/JIT/emergency), secure packaging, and full customs/documentation support for global trade.
Long-Term Partnership
Customized service packages, dedicated account management, and continuous optimization based on your feedback.
Why choose us?
At KAT Drilling Tools, we stand out as your trusted drill tool partner for core advantages that deliver real value:
1. One-Stop Drill Tool Supply
2. Uncompromising Quality
3. Competitive Cost-Effectiveness
4. Professional Technical Support
5. End-to-End Service
6. Global Reliability
7. Trusted Long-Term Partnership
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