Special Systems


Large Diameter Rock Bits are engineered for customer requirements.

Concave sructure with quide nose give ecxellent accuracy in chanllenging jobs with high demands for hole straightness.

PPV rock bits are available from 300mm to 1250mm diameter and for all major shank designs.

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Rock Bit

Rock Bit

Main Applications

  • Rock sockets
  • Air ventilation for tunnels
  • Shafts for utility lines
  • Rescue shafts for mining

PPV Rock Bit Design

PPV Rock Bit Design

Conventional Rock Bit Design

PPV Conventional Design