The principle of disc cutter rock breaking is to rely on the rolling of the cutter to produce impact crushing and shear crushing effect to achieve the purpose of rock crushing. The type, quantity, arrangement, position and overrun of the disc cutter are determined according to the strength and integrality of the rock formation and the diameter of the cutter plate of the rock formation. Our company can produce various types and specifications of cutter from 8 to 20 inches, which are adapted to all kinds of tunneling machines, such as shield machine, TBM tunneling machine, pipe jacking machine, coal mine tunneling machine and so on.
Hob Model (inches)
Size (mm)
Rated Load (kN)
Hob Type
Mounting Type
Number of Cutting Edges
8
205
80
Shaft Type
Front Mounting
Single Edge, Double Edge, Triple Edge
10
254
110
Shaft Type
Front or Rear Mounting
Single Edge, Double Edge, Triple Edge
11
280
110
Shaft Type
Front or Rear Mounting
Single Edge, Double Edge, Triple Edge
12
305
120
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge, Triple Edge
14
356
178
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
15
381
178
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
17
432
267
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
18
457
267
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
19
483
311
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
20
508
311
Shaft Type & End Cover Type
Rear Mounting
Single Edge, Double Edge
