Dynamic Rock Bolts
Our MD/MDX bolts are designed for underground hard rock mines. They are specifically designed for weaker rock conditions and dynamic loads and are quick and easy to install with both Jumbo and Rock bolters. Setting the new benchmark for ground support for seismic ground conditions, it is achieving new hights in impact absorption. Your bolt of choice for safer mining.
DYNAMIC ROCK BOLTS - PRODUCT OFFERING
D47 MD BOLT
Application:
“Static support”
- Stoping, development, production areas
- For swelling, squeezing conditions
- Jumbo/Rock Bolter installation
Benefit:
- Control of gradual release of energy from surrounding rock like swelling and squeezing
- Quick installation time, one pass, no resin/grout
- Speeding up development cycle
Value delivered:
- Safer working conditions
- Continued mining
- Productivity increase
| Bolt Diameter | Bolt Length | Wedge Expansion | Bolt Weight |
| 47 mm | 3.0 m | 52 mm (max) | 16.5 kg |
| 47 mm | 2.4 m | 52 mm (max) | 13.2 kg |
| 47 mm | 2.1 m | 52 mm (max) | 12 kg |
D47 MDX BOLT
Application:
“Dynamic support”
- Stoping, development, production areas
- For deep mining and seismic conditions
- Jumbo/Rock Bolter installation
Benefit:
- Control of sudden & violent release of energy from surrounding rock
- Withstands 30 kJ impact, with only 153 mm displacement
- Speeding up development cycle
Value delivered:
- Safer work conditions
- Continued mining
- Productivity increase
| Bolt Diameter | Bolt Length | Wedge Expansion | Bolt Weight |
| 47 mm | 4.0 m | 60 mm (max) | 20.5 kg |
| 47 mm | 3.8 m | 60 mm (max) | 19.4 kg |
| 47 mm | 3.0 m | 60 mm (max) | 15.4 kg |
| 47 mm | 2.4 m | 60 mm (max) | 12.3 kg |
| 47 mm | 2.1 m | 60 mm (max) | 10.9 kg |
D39 MDX BOLT
Application:
“Dynamic support”
- Stoping, development, production areas
- For deep mining and seismic conditions
- Jumbo/Rock Bolter installation
- Suit Macleans Rigs and Canadian market
Benefit:
- Control of sudden and violent release of energy from surrounding rock
- Withstand 26 kJ impact, with only 153 mm displacement
- Speeding up development cycle
Value delivered:
- Safer work conditions
- Continued mining
- Productivity increase
| Bolt Diameter | Bolt Length | Wedge Expansion | Bolt Weight |
| 39 mm | 3.0 m | 47 mm (max) | 14.1 kg |
| 39 mm | 2.4 m | 47 mm (max) | 11.1 kg |
| 39 mm | 2.1 m | 47 mm (max) | 9.9 kg |
