Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
To survive with high quality,to develop with non-stop innovation,to repute with thoughtful service,to brand with great sincerity
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DTH drill pipes are widely used in mining,water well drilling,geothermal,oil and all kinds of DTH rock drilling,with high quality low carbon steel to ensure good resistance to strengthen and tensile,friction welded to ensure the adapter and pipe connect tightly as a whole set the cyclic extrusion-compression ensure reliable pipe
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Specification
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Diameter(mm)
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Length(mm)
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Thread type
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Craft
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Connection type
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50
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1000-3000
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API 2 3/8 REG
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Friction welding
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Box/pin
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60
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1000-3000
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API 2 3/8 REG
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Friction welding
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Box/pin
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76
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1500-3000
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API 2 3/8 REG
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Friction welding
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Box/pin
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89
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1500-3000
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NC26(2 3/8IF)
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Friction welding
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Box/pin
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102
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1500-6000
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NC31(2 7/8IF)
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Friction welding
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Box/pin
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108
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1500-6000
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NC31(2 7/8IF)
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Friction welding
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Box/pin
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114
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1500-6000
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NC31(2 7/8IF) OR NC35
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Friction welding
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Box/pin
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127
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1500-6000
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NC38(3 1/2IF)
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Friction welding
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Box/pin
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