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22mm taper drill steel rods for hole drilling

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Address: Room1007 Shan Hu Ge Builing,Robinsin Galleria 895, Xia He Road, Xiamen, China

Contact name:Simon Hu

Xiamen Prodrill Equipment Co., Ltd

22mm taper drill steel rods for hole drilling

Country/Region china
City & Province xiamen fujian

Product Details

Description: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 0.6 mto 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, likeour model no. PD-Y58 crawler hydraulic rock drill. Also for Y6, Y10, Y24, YT24, Mobile rock drill pneumatic and hydraulic. 

For low impact rock drills and softer rock formations, a narrow tape range of 7 degrees is used, such as 
Indian, Saudi’s granite and marble quarry. 

A comprehensive range of taper button bits, cross bits and chisel bits with 6, 7, 11, 12 degreetaper, drill 
hole diameter: 28mm-57mm. 

 

Product features: 

Carburization is a process used to harden the entirerod surface both internally and externally to strengthen and extend the life of the rod. Carburization is a process used to harden the entire rod surface both internally and externally to strengthen and extend the life of the rod.

 

Tapered Drill Rod Specifications

 
  • Steel grade: 95CrMo Equivalent to SANDBAR 20 or C253, 55SiMnMo
  • Size: hex.19mm, hex.22mm, hex 25mm
  • Diameter: 0.4m-10m.
  • Taper degree: 7°11°and 12°etc.
  • Package:in wooden case or bundles
  • Productivity: 10000MT/month

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