Tensile strength: ≥1100 MPa
Torsional stiffness: ≥500 kN·m/rad
Interface flatness: ≤0.02 mm/m²
Dynamic balancing accuracy: G2.5 (ISO 1940)
Fast change support: Yes
Material: Forged steel
Raise Bore Reamer Block is one of the most core and critical working parts of the raise borer drill bit (pilot drill bit or reamer drill bit). It directly carries the task of installing the rock breaking cutter. LOOKING Raise Bore Reamer Block has strong advantages in drilling efficiency, reliability and life.
LOOKING Raise Bore Reamer Block is forged with high-strength raw materials, which can stably transmit high thrust/torque and reduce energy loss in component deformation. In addition, after optimizing the layout, it has higher efficiency and can help roller cutter to cut and crush efficiently.
Our Raise Bore Reamer Block has a solid structural design, which can avoid stress concentration and prevent breakage under alternating loads. In addition, it adopts a modular design, which is convenient for quick replacement of a single damaged cutter block or hob, reducing downtime。
LOOKING Raise Bore Reamer Block is designed with a reliable locking mechanism to ensure that the cutter will not loosen and fly out under high-speed rotation and strong vibration, ensuring the safety of personnel and equipment. In addition, the structural design around the cutter block helps the rock debris to be discharged smoothly from the bottom of the drill bit, avoiding repeated grinding of the drill bit and the cutter, maintaining rock breaking efficiency, and reducing abnormal vibration.
Use a torque wrench to tighten the bolts according to the specifications and regularly calibrate the installation angle and radius of the cutter holder.
Hard rock (granite, quartzite): Use small diameter roller cutters and high-density tooth cutter holders, focusing on wear resistance.
Broken formations: Strengthen the impact resistance design of the cutter holder to reduce the eccentric load of the roller cutter.
Highly abrasive formations: Wear-resistant coatings (such as tungsten carbide) need to be added to the surface of the cutter holder.
