rock drilling tools, button bits, DTH drilling tools, shank adapter, coupling sleeves, ntegral drill steels
rock drilling tools, button bits, DTH drilling tools, shank adapter, coupling sleeves, ntegral drill steels
Tapered drill rod,another name called taper rod,
tapered drill steels, This provides a hexagonal chuck section to provide
leverage for the rotation chuck bushing. It usually has a forged collar to
maintain the proper shank striking face position in the rock drill, and a
tapered bit end. Tapered steel lengths— available from 0.6m to 3.6 m in
length—are measured from the collar to the bit end.
Shank Hexagon: 19 x108 mm, 22x 108mm, 25 x108 mm, 25 mmX159 mm 6, 7, 11, 12
degree taper in most lengths, taper degree of drill steel is mostly imports for
excellent drilling productivity.
For drilling medium-hard to hard and abrasive rock formations,Taper angles of
11 and 12-degrees are
normally used on modern drill rigs, like YT28B, YT29A, Y24, YT24, Mobile rock
drill pneumatic and hydraulic.
Specification
1) Shank Hexagon: 19 x108 mm, 22x 108mm, 25 x108 mm, 25 mmX159 mm
2) Taper Angle: 6, 7, 11, 12 degree
3) Material:high quality alloy steel
Application
Tapered drill rods are used in granite and marble quarry, gold mine, railway, tunnel, etc.