PR740 Raise Boring Reamer

Raise boring reamer

Minerza PR740 Series

Max cutter load: 27 ton

Max cutter RPM: 85

Reamer weight (including cutters): 1,005 kg

Hole size: Ø740 mm (29.13 in)

Rock formation: Soft to hard

Description:

The Minerza PR740 Series push bore reamers are purpose-built for efficient slot hole drilling in underground mining. Featuring dual Ø740 mm reamers for upward and downward operations, this system delivers maximum precision, durability, and speed in raise boring. The design includes a patented saddle structure for faster cuttings removal, bolt-on wear pads for simplified servicing, and reinforced carbide inserts for improved penetration and wear resistance. With enhanced safety and sustainability benefits through reduced manual handling and longer reamer life, PR740 ensures optimal performance in both soft and hard rock formations.