KJ321 hydraulic tunneling dilling rig is suitably qualified for the
drilling of tunnels whose section falls in the range of 12-45m²,
capable of drilling the blast hole and rock bolting in a vertical,
inclined and horizontal way.
Permanent magnet variable frequency screw air compressor can maintain high motor efficiency at any speed, so the energy-saving effect is much better than that of ordinary screw air compressor.
The cooling system design is especially suitable for high temperature and high humidity environment in Asia. It has excellent vibration isolation technology and noise reduction measures.