Welded HDD Rods

North Star’s engineers produced the first HDD pipe in China in 2004: a simple, friction-welded model using a plain-end tube.

Through nearly 15 years of field testing and development, North Star’s team has refined our welding processes to the point that today’s friction-welded models are the most popular choice of our partners and customers in China and throughout Asia – appreciated not only for their durability and reliability, but also their competitive pricing.

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Welded Drill Pipe Specification Charts

Compatible with Vermeer HDD Rigs Compatible with Ditch Witch HDD Rigs General Pipe Specifications

Compatible with Vermeer HDD Rigs

Rig Compatibility*ThreadLengthPipe ODJoint ODPin Length (mm)Max. Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight (kg)Part Number
mmftmminchmminchmft
D7x11, D10x15#20018296421.66481.8850.7204030.299.13.55.910NS10311
D20x22, D23x30#400304810522.06572.2563.5352534.3112.55.18.727NS10312
D24x40#600304810602.38682.6363.5569539.61304.47.532NS10024
D40x40#600457215602.38682.6363.5569539.61306.611.347NS10012
D33x44, D36x50#650304810602.38702.7563.5680039.61304.47.534NS10023
D33x44, D36x50#650457215602.38702.7563.5680039.61306.611.348NS10058
D36x50, D40x55#700304810672.63793.176.2745748157.53.66.249NS10059
D36x50, D40x55#700457215672.63793.176.2745748157.55.59.371NS10060
D50x100, D60x90#900304810732.88833.2588.91220252170.63.35.745NS10006
D50x100, D60x90#900457215732.88833.2588.91220252170.658.565NS10061
D50x100#900457215763833.2588.91254.7179.54.88.178NS10007
D80x100#800457215893.5923.6288.913560642104.1799NS10062
D130x150#1000609620893.51114.37588.920400642105.59.3140NS10064

Compatible with Ditch Witch HDD Rigs.xlsx

Rig Compatibility*ThreadLengthPipe ODJoint ODPin Length (mm)Max. Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight (kg)Part Number
mmftmminchmminchmft
JT27201.9430009.84602.38702.7575434039.61304.37.434NS10002
JT201.9430009.84522.06672.6375298034.3112.558.528NS10268
JT2720M1, JT3020M12.1130009.84602.3876.2384.7542039.61304.37.436NS10001
JT25/302.1130009.84602.38702.7584.7542039.61304.37.434NS10269
JT40202.4450014.76732.88823.2399.5680052170.64.98.365NS10073
JT4020M12.59450014.76763893.591.5680054177.24.7876NS10033
JT7020M1, JT8020M1, JT100M13.27450014.76893.51024132.5135606421046.998NS10075

Welded General Pipe Specifications

Pipe ODThreadLengthJoint ODMax. Torque (Nm)Recommended 
Make-up Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight (kg)
mminmmftmminmft
602.375ZX60 (BDSII)30009.84682.6778294497639.61304.37.432
732.875NC23 (BDS)30009.84823.16913978838752170.63.35.645
763NC2630009.84883.46516560993654177.23.15.353
833.25ZX8030009.84923.622203721222359193.62.94.959
450014.764.37.381
893.5NC3130009.841054.1342940717644642102.74.671
450014.7646.995
1024NC38450014.761275395152370973239.53.56123
600019.694.78160
1144.5NC38600019.6912755157330944822694.27.1165
1144.5NC46600019.691576.1816876441259822694.27.1203
1275NC50600019.69168.36.6251087596525591298.63.86.4250
960031.5610.2350
1405.55 1/2FH960031.5190.57.5117340704041003285.59.3450
1686.6256 5/8FH960031.5209.68.25120799724801213974.57.7460

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