Galvanized Black 47mm Split Set Friction Rock Bolt Stabilizers With Domed Plates
Split set is also know as friction bolt.
It is a rock support method used in underground mining and tunnel construction.The bolt consists of a high strength steel bolt with a ''U'' shape cross section and a longitudinal groove.
To install a Split Set bolt, a hole is made in the rock with a diameter slightly smaller than the bolt’s diameter, and the Split Set is inserted into it. As the bolt is pushed into the rock, the “U” shaped cross-section reduces and adjusts to the shape of the borehole. This expansion creates friction between the Split Set and the surrounding rock along its entire length, providing strong resistance to displacement
| Item no | Dimeter | Steel | Min Yield | Plate size |
| MF33 | 33mm | 2.5mm | 78KN | 150*150*4.0 |
| MF39 | 39mm | 2.5mm | 88KN | 150*150*4.0 |
| MF42 | 42mm | 2.5mm | 95KN | 150*150*4.5 |
| MF47 | 47mm | 3.0mm | 125KN | 150*150*5.0 |


Hebei Minetech Machinery Technology Co, Ltd. is located in Hebei province of China. Our company is a professional production and export tapered and thread rod, chisel and button bit and other mining drilling tools enterprises. With our rich experience for over a decade and with professional engineers and sales team, we focus on providing complete solutions for mining machinery.

- Methods of Payment: T/T (Telegraphic Transfer) or Western Union or L/C at sight
- Handling time for an order: Within 10 days supplied from stock
- Shipping way:
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea. - Quality Control: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.
- After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.