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https://www.litechtools.com/products/random-roller-cutter.html

Random Roller Cutter is a kind of TCI roller cutter without annular grooves (chipways) on the cutter surface, and its carbides are randomly distributed on the cutter body surface according to the design. This kind of roller cutter can be used not only in raise boring equipment, called raise boring cutter; but also widely used in reverse circulation drilling equipment, called RCD cutter.
Random Roller Cutter Product Features
1. The back cone adopts spherical buttons, and the main cone adopts conical buttons.

2. Randomly distributed buttons are used to achieve full coverage of the bottom crushing zone.

3. The optional bearings include tapered roller bearings, ball bearings, and thrust roller bearings.

4. Use high-quality metal seals.

5. The roller cutters can be repaired and customized.

Random Roller Cutter Application Parameters
1. Applicable rock hardness: protodyakonov scale of hardness f≤12.

2. Recommended WOB of roller cutter: 100KN~170KN (12″), 60KN~100KN (8″).

3. Maximum WOB (weight on bit): 196KN (12″), 120KN (8″).

4. Recommended cutterhead rotation speed: 3-15 RPM.

5. Maximum linear velocity: 90m/min.

Litian Optional Cutter Model

As one of rock drilling tools manufacturers, Litian is committed to the development and production of rock breaking tools and rock mining drilling tools to help customers in mining and infrastructure construction to increase productivity and reduce comprehensive rock breaking costs. Our products can be applied to various brands and models of tunnel boring machines, rock drilling rigs, raise boring rigs and other machinery.