BOXHOLE BACKREAMING MACHINE (BBR)

The Herrenknecht Boxhole Backreaming Machine (BBR) bores and reams ore passes and ventilation shafts with diameters of up to 3.5 meters. Based on the proven BBM technology, the BBR is characterized by high efficiency and high safety standards. Upon request, Herrenknecht will supply the BBR with a project-specific lowering unit. With this, lining of the shaft can already be done parallel to the reaming operation, saving time and increasing safety.