Minova’s Friction Bolt improves rock stability and safety factors by tightening as lateral strata movement occurs.
The Friction Bolt is primarily used in metalliferous mining operations but is also well suited for rib support in coal operations. Minova’s Friction Bolt is available in four diameter sizes: 33mm, 35 mm, 39 mm and 46mm.
Manufactured from high strength steel
Available in galvanized and stainless steel
Improves rock stability and safety
Bolt Dia 33mm (1.3") | Weight 1.6kg/m (1.1 lbs/ft) | Ultimate Min. Tensile Strength 89kN (20,000 lbs) | Recommended Bit Dia. 30-33mm (1.2 -1.3")
Bolt Dia 35mm (1.4") | Weight 1.6kg/m (1.1 lbs/ft) | Ultimate Min. Tensile Strength 89kN (20,000 lbs) | Recommended Bit Dia. 32-35mm (1.3 -1.4")
Bolt Dia 39mm (1.5") | Weight 1.7kg/m (1.2 lbs/ft) | Ultimate Min. Tensile Strength 111kN (25,000 lbs) | Recommended Bit Dia. 35-39mm (1.4 -1.5")
Bolt Dia 46mm (1.8") | Weight 2.8kg/m (1.9 lbs/ft) | Ultimate Min. Tensile Strength 151kN (34,000 lbs) | Recommended Bit Dia. 42-46mm (1.7 -1.8")
Tension Rebar Bolts
Where better beam building is needed, the Tension Rebar Bolt System has strength characteristics to meet your needs.
Matched Bearing Plate systems and Minova resin capsules are available for all Minova Rebar Bolts.
Minova Reinforcing Steel Bar (Rebar) is manufactured to critical tolerances and standards to meet the day-to-day needs of our mining customers. Our comprehensive quality control program ensures that each Rebar Bolt order arrives at your site just as you have specified. And, because Minova is a world leader in manufacturing, you can be assured that we will be able to fill your orders quickly and efficiently, regardless of the size of the delivery requirement.
Minova Rebar Bolts are made from grade 40, 60 and 75 steel and can be manufactured as bendable products for low seam applications.