Active Member
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[China]
Address: No. 018, Yaojiapo Road., Jinzhou New District, Ningxiang County
Contact name:Spring Huang
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd. |
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98mm DTH Drill Rods:
Product: DTH drill rods
Size: 3-7/8" (98mm)
Joint: 2-3/8" API Reg pin & box
Length choose: 1m, 1.5m, 2m, 3m, 4.5m, 6m, 7m, 8m, 9m, 11m, 12m or based on yours.
Thread Connection: B.S. whitworth, API REG, API IF, API NC, FH, XH.
Steel grade: 40Cr, DZ40, R780, J55, E75, G105.
Steel process: Heat treated.
Produce by: Friction welded.
Rig machine: DTH drilling rigs.
Friction welding DTH drill rods use stable quality seamless steel, using time is more than the electrowelding DTH drill rod, and greatly improved strength after heat treatment.
Our DTH drill rods produced by CNC machine, and choose high grade steel material thru heat treatment of the steel tube & thread joint to improve the steel material streagth and insurance the thread wear life.
SD DTH Drill Rods Specifications:
