Rock bolt assemblies with extended-length coarse thread, for multiple re-tightening after installation with resin capsules. Assemblies comprise the stud, matching nut and bearing plate washer, in a variety of bolt diameters and lengths. Rock bolt assemblies are packaged as complete, ready-to install units.
The stud portion of the Rock Bolt Assembly comprises a deformed steel bar with a cold-rolled thread at one end.
The Tyta Bolt has a 6mm pitch knuckle thread, with proprietary form, from lengths of 200 mm up to a maximum of 500 mm in length.
The material is hot rolled carbon steel of homogeneous microstructure and uniform hardness across the cross-sectional area. Rock bolt assemblies are packaged as complete, ready-to install units and are used for anchoring, roof stabilisation, rock surface control and structural reinforcement.
Lokset™ TOOSPEEDIE remains to be the most groundbreaking capsule solution in the evolution of resin bolting.
This product eliminates the need to use multiple resin capsules to achieve pre-tensioning of fully encapsulated resin grouted rock bolts. It is used as an anchoring medium for rock bolts and long tendons to provide primary roof support in mines and tunnels.
Lokset capsules are filled with a reinforced thixotropic polyester resin in one compartment and a catalysed mastic filler in the other, separated by a physical barrier. The rotation of the bolt during installation ruptures the capsule, shreds the skin and mixes the two components causing a chemical reaction and transforming the resin mastic into a solid anchor.