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Raise-boring hob

Raise-boring hob

keywords : Construction cutter
Model : -
Price : 2000-3000

Additional Information

When the tunnel boring machine (TBM) is used for construction of subway tunnel, railway tunnel, water tunnel and urban underground pipeline network, the raise-boring hob is the necessary tool for the raise-boring machine to carry out reserve reaming and drilling from bottom to top and is mainly used to break and cut rock. On the raise-boring hob hard alloy teeth are inlaid regularly. Driven by the drill, the raise-boring hob conducts constant press-in and hobbing against the working face via the constant moving up and rotation of the drill rod to make rocks on the working face constantly peel off and fall, so as to achieve the goal of upward ream drilling of the rockshaft. Compressive strength of the rock formation is 80Mpa-180Mpa.

When the tunnel boring machine (TBM) is used for construction of subway tunnel, railway tunnel, water tunnel and urban underground pipeline network, the raise-boring hob is the necessary tool for the raise-boring machine to carry out reserve reaming and drilling from bottom to top and is mainly used to break and cut rock. On the raise-boring hob hard alloy teeth are inlaid regularly. Driven by the drill, the raise-boring hob conducts constant press-in and hobbing against the working face via the constant moving up and rotation of the drill rod to make rocks on the working face constantly peel off and fall, so as to achieve the goal of upward ream drilling of the rockshaft. Compressive strength of the rock formation is 80Mpa-180Mpa.

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