Maxdrill has developed its friction bolts which are mainly used as the simple and cost-effective form of ground support. Friction bolts have become available in mining and tunneling for decades.
- Made of high-tensile steel;
- Parts and accessories are provided;
- Processed with Hot-dip galvanizing technology;
- The bolt as a whole can provide ground support and improvement in rock stability.
- Mine roof and rib support
- Water tunnels
- Shaft walls
- Mine tunnels
- Underground storage caverns
- Road tunnels
- Pipe and ventilation ducts
- Conveyor Belts
- Wire roller
- Excavation slope
- Highway cuts
| Model || || FB-33 || FB-39 || FB-47 |
| Bolt Diameter || A || 33mm || 39mm || 47mm |
| Bolt Length || B || 600-3000mm || 600-3000mm || 600-3000mm |
| Taper End Diameter || C || 28mm || 30mm || 38mm |
| Taper Slot Wide || D || 2mm || 2mm || 2mm |
| Taper Length || E || 60mm || 65mm || 65mm |
| Bolt Slot Wide || F || 12mm || 17mm || 25mm |
| Ring Location || G || 3mm || 3mm || 8mm |
| Material Guage || H || 2.0-2.5mm || 2.0-2.5mm || 2.5-3.2mm |
| Ring Wire Guage || I || 6mm || 6mm || 8mm |
| Ring Open Gap || J || 5.0-6.0mm || 5.0-6.0mm || 6.0-7.0mm |
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As a reliable drilling tools manufacturer with a focus on supplying “Energy-saving, Economical, Efficient” products all along, we gradually become one of the most credible Chinese manufacturers in rock drilling tools industry. Maxdrill is always committed to supplying low cost, high efficiency, energy saving and environment-friendly products for global customers. No matter what types of rocks — soft rock, loose-medium rock, hard rock and any other special formations, just tell us what you need and leave the rest to us, and our customer service is always there to help you meet your requirements.