TBM Disc Cutter

TBM disc cutter is a disc-shaped roller cutter mounted on the cutterhead of
tunnel boring machine, which is an excavation tool for breaking hard rocks.
The disc cutters can be mounted on the cutter heads of large non-excavation
construction equipment such as shield machines, TBMs, pipe jacking machines,
shaft boring extension machines, and are widely used in subway tunnels,
railway tunnels, diversion tunnels, urban underground pipe network
construction, mining and other industries.

Litian has been conducting research on the materials, heat treatment process
and manufacturing process of the TBM disc cutter components, combined with
on-site testing to make improvements. As a result, the tbm cutter disc
produced by Litian heavy industry has been in a leading position in the
industry in terms of wear resistance, high temperature oxidation resistance,
toughness. Litian TBM roller cutter can adapt to the needs of multiple types
of engineering, and can meet the requirements of long-distance excavation
under the compound strata of highly weathered rock, moderately weathered
rock, slightly weathered rock, and has good stability and reliability.

Specifications Of Different TBM Disc Cutter
Cutter Type Diameter Bearing Capacity [tonne] Structure
[inch] [mm]
Single Disc Cutter
Double Disc Cutter 20" 508 40 Monoblock / Assembly
19" 483 40 Monoblock / Assembly
18" 457 28 Monoblock / Assembly
17" 432 28 Monoblock / Assembly
15 1/2" 394 22 Monoblock / Assembly
Single Disc Cutter
Double Disc Cutter
Triple Disc Cutter
12 1/2" 320 14 Monoblock / Assembly
12" 305 16 Monoblock / Assembly
11" 280 13 Monoblock / Assembly
10" 250 10 Monoblock / Assembly
9" 220 9 Monoblock
8" 200 8 Monoblock
7" 180 8 Monoblock
6 1/2" 165 5 Monoblock
6" 150 4 Monoblock
Center Disc Cutter 18" 457 42 Assembly
17" 432 45 Assembly
15 1/2" 394 45 Assembly
13" 330 40 Assembly
12" 305 35 Assembly

TBM Disc Cutter Features

Our advanced CNC machine tools can ensure the consistency of the size of the
cutter components. Combined with strict and standardized assembly process to
ensure the torque of the hob. Adjust the torque in an appropriate range, so
that it can well meet the requirements of the surrounding rock geology for
the starting torque of the disc cutter, which is helpful to avoid partial
wear of the disc cutters in different strata. We have a unique heat
treatment process, which can meet the unity of wear resistance and
toughness, and improve the service life of the hob.
Sealing system: The sealing system of our disc cutter adopts the world
famous brand metal sealing system. During the assembly of the disc cutter,
the distortion of the rubber ring may lead to air leakage, and this hidden
danger is difficult to detect. We use special technology to assemble the
disc cutter to correct the distortion of the rubber ring, eliminate the
hidden danger of metal seal air leakage, and ensure the sealing reliability
of the disc cutter.

Bearing system: Our disc cutter bearings are heavy-duty tapered roller
bearings, which can bear the combined radial and axial load strength at the
same time.

Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a
professional rock drill bits factory. We provide shank adapter, threaded
button bit, mining rock tools and ec. Contact us to know more.

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