Friction Bolt
Friction Bolt

Friction Bolt

With its convenient installation, low cost, and active support, the Friction bolt Ø33 mm series has become an indispensable support material in mining and geotechnical engineering.
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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.

115

 

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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Lifelong technical follow-up toaddress your post-purchase needs promptly.

Practical advice to maximize tool durability, cut replacement frequency, and improve drilling efficiency.
Then we make your tools last longer and work better.

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