rock drilling tools 12 39 39 305mm QL80 DTH hammer bits

Ways to improve the service life of dth hammer:for the problem that affects the service life of the drill bit, the following solutions can be adopted: a. because the titanium alloy has large elastic deformation and the hole is easy to shrink, the drill tip is slightly sharpened to appropriately...

Dth drill rods (also called as drill tubes or drill pipes) are the mechanism to transmit impact force and rotation torque to dth hammer and dth bit, as well as offer pass for the air flow.guizhou vilong supplies a full size of friction welded dth drill rods from 76mm to 140mm with different wall thickness. in dth drilling, the percussive dth hammer is located behind the drill bit, inside the ...

One-stop-shop – a total solution we offer a complete range of dth drilling tools including hammers, bits, pipes, adapters, reverse circulation products, breakout benches and grinding machines with consumables. innovation and commitment over the decades the history of the down-the-hole hammer manufacturing goes back more than four decades.

It is a kind of self drilling anchor bolts. it is a new and high technological supporting product which combines drilling, grouting and anchoring together. the bolt length is flexible, it can be lengthened according to your demands.

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