Bolting rigs

Bolting rigs (also called mining bolters) are specialized mining machines designed for drilling holes and installation of safety bolts in roof and walls of underground mining excavations. In the case of metal ore mines, securing excavations by bolting the ceiling and walls is the most popular and usually the cheapest method of ensuring the safety of the conducted operation process.

The Mine Master company offers bolting rings that can successfully secure various types of mining workings, both at low heights (from as low as 1600 mm) as well as in large excavations. In the vast majority of variants of working units of bolting rigs manufactured by Mine Master, the reliable and efficient rotary hydraulic drills are used.

Mine Master bolting rigs can be equipped with an automatic anchoring system developed in cooperation with J. H. Fletcher company.

The construction of each bolting rig and its working unit is tailored to the individual requirements of the customer. In its offer, the Mine Master company includes the following types of underground bolters:

  • Roof Master 1.4 - the lowest bolting rig offered by the Mine Master company, with a transport height of 1.4 meters, designed especially for anchoring low headings in mines with a limited height of the exploited ore deposit,
  • Roof Master 1.4 Automatic - the Master Master 1.4 version is equipped with a reliable dry rotary drilling system, which thanks to the developed proprietary drilling solution allows installing 1.2 meter long bolts in headings with a minimum height of 1.6 meters,
  • Roof Master 1.7 – classic and most popular bolting rig capable of installing bolts in excavations with heights from 1.92 to 4 meters. The Roof Master 1.7 comes standard with a proven working system from J. H. Fletcher company,
  • Roof Master 2.0 - the largest of the offered bolting rigs, capable of securing mining and tunnel headings with heights ranging from 2.13 to even 8 meters,
  • Roof Master 2.3 - a unique construction that allows securing mining excavations with the use of safety nets fixed to the ceiling and side walls using the special anchors. The safety net can be laid on the protected surface in square panels or pulled from a tray mounted on the machine.