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Brand Name : Minetech
Model Number : 42mm Underground Friction Bolt
Certification : ISO9001
Place of Origin : China
MOQ : 1pc
Price : $3-$15
Payment Terms : Western Union, MoneyGram, T/T, L/C
Supply Ability : 30000 pieces per month
Delivery Time : 15-30 days
Packaging Details : 1/carton
Product Name : underground Friction Bolt
Key Words : friction bolt
Model Type : 47mm
Color : Customized
Package : wooden case
Processing Type : Forging
Machine Type : rock drill rig
Application : Bolting, drifting • Bench drilling • Production drilling
Port : Tianjin qingdao
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 |
Advantages
1. Simple to install, just bump to finish; 2. No anchoring agent is required; 3. High friction between anchor and rock; 4. High shear and tensile strength; 5. Equipped with high-strength pallets, the pallets are subjected to uniform force; 6. Radial and axial directions can provide timely support.
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.
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39mm Mining Rock Split Set Friction Bolts Mining Roof Support For Mine Seam Pipe Images |