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It is mainly used in rock drilling and crushing, anchoring drilling, geothermal air conditioning holes, water well drilling, etc. The pipe body is made of materials produced by well-known large-scale iron and steel enterprises in China. The two ends of the pipe body are internally thickened, tempered after friction welding, quenched and tempered after rough machining of drill pipe joints, phosphating and nitriding after finishing. It effectively eliminates the failure probability of gluing, broken buckles, outer diameter swelling and cracking, is more wear-resistant and easy to disassemble. All threads are processed by precision numerical control lathes with customized forming knives. All threads are equipped with thread gauges conforming to international standards. Therefore, the quality of drill pipes produced is stable and reliable, and the service life is greatly prolonged.
Drill pipe diameter
Thread model
Steel grade
Rod wall thickness
Thickened form
Drill pipe length
inch
mm
mm
mm
3
76
2-3/8"REG
R780、G105、S135
4-8
upset
1000--6000
31/2
89
23/8"IFNC26
R780、G105、S135
4-10
upset
1000--6000
4
102
27/8"IFNC31
R780、G105、S135
8-10
upset
1000--9000
41/4
108
27/8"IFNC31
R780、G105、S135
8-10
upset
1000--9000
41/2
114
NC35
R780、G105、S135
6-12
upset
1500--9000
5
127
31/2"IF NC38
R780、G105、S135
9-12
upset
1500--9000
5.5
140
4"IF NC46
R780、G105、S135
8-20
upset
1500--9000
We can produce down the hole drill rods/outer flat drill rods with different materials, lengths, diameters, and wall thicknesses, as well as customize drill rods according to customer requirements for materials, lengths, wall thicknesses, and threads.
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