Japanese

Ring replacement type roller bit


Ring replacement type bit
Roller Bit for shield machine has excellent biting and durability, it is especially effective for excavation propulsion of bedrock and boulders.
· Efficiently crush with a cutting face, may be  cobblestones in soft soil, gravel layers and hard bedrocks.
· Possible to use long-hours, withstand heavy load excavation by sturdy structure with large bearing capacity.
· Various sizes are available to select by shield diameter size and installation possition.
· Excellent in the pressure resisting performance by special oil sealding the cutter inner lace and bearing.
· Easy to install on the shield machine body, and easy to replace cutter quickly.


SRB inner cutter


SRB inner cutter
Hardened type(CQ)
SRB inner cutter
chip type(TCI)
SRB inner cutter
Hardcover type(CQ-HM)
SRB inner cutter
Chip/hardcover type(TCI-HM)

SRB gauge cutter


SRB gauge cutter
Hardened type(CQ)
SRB gauge cutter
chip type(TCI)
SRB gauge cutter
Hardcover type(CQ-HM)
SRB gauge cutter
Chip/hardcover type(TCI-HM)

tooth & insert

    
center cutter
CL-M Type
center cutter
SSD-M Type
center cutter
CL-VH4 Type
center cutter
SSD-VH4 Type
gauge cutter
SSD-M Type
gauge cutter
SSD-VH4 Type
gauge cutter
CL-M Type
gauge cutter
LSD-VH4 Type
gauge cutter
SD-M Type
gauge cutter
SD-VH4 Type

SRB center cutter


When pressing the cutter against the ground to crush the rock, conventional integrated cutters cannot rotate the disc independently, causing slippage and knitting wear.
At our company, we have adopted an independent rotation system and smoothed the movement of the disc during crushing, making it possible to use it for a long time.

small diameter roller bit


As part of urban environmental facilities, construction work for burying water, sewage, and gas pipes, as well as construction work for managing power and communication cables, etc., is rapidly increasing. Various small diameter pipe propulsion methods have been developed and put into practical use for these construction projects.
Our company has developed a roller bit that can be attached to the cutter head of the small diameter pipe propulsion method, making it possible to easily excavate boulder layers and rock formations that were previously considered difficult.

small diameter roller bit
cantilever Type(2CQ)
small diameter roller bit
cantilever Type(3CQ)
small diameter roller bit
saddle Type
small diameter roller bit
saddle Type

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