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ZLCONN HDD Drill Rods

HDD Drill Rods also named as HDD drill pipes play a significant role in all HDD drilling, regardless type of rock, hole depth or HDD Machine.

The key features of a high quality HDD tube are durability, accuracy and manageability. 

ZLCONN has HDD drill rods for HDD Drill rigs with several different thickness designs for each diameter, made from different grade steels for selection. So, in practice of field drilling, under different condition, there may be in need of different kinds of drill rods for particular application. For example, the thicker ones with general high quality grade steel for drilling hole of average depth, such as blasting holes; and the thinner ones with better grade steel for drilling hole of very deep, such as drilling for ground thermal. Moreover, ZLCONN’s HDD drill rods are also well heat-treated, precision manufactured, and friction-welded. 

ZLCONN HDD Drill Pipes Parameters

ProductPipe body OD
(mm)
Wall thickness
(mm)
working length
(mm)
Thread typeTool joint OD
(mm)
Tool joint inside diameter of the pin end
(mm)
Pin connection length
(mm)
GradeDrill pipe torsional strength
(N.M)
Drill pipe tensile strength
(T)
Tool Joint and body torsional strength ratioMinimum bend radius
(m)
Angle
(°)
Bend slope ratio
(%)
Part Number
60×3000-DH(One piece upsetted)60.37.1300060DH682070S1358780112.60.5844.47.713.61004001
60×3000-DDW(One piece upsetted)60.37.13000TXS-60682072S1359185112.60.644.47.713.61004033
60×3000-DH-Ⅱ(One piece upsetted)60.37.13000DH60-2712270S13510745112.60.7144.47.713.61004008
68-4500钻杆68845002 5/8″-TPV76.23270.18S13511120143.10.5150.210.318.11005007
(One piece upsetted)68830002 5/8″-TPV76.23270.18S13511120143.10.5150.26.9121005008
73×3000-ZT(One piece upsetted)7383000ZT23812876.2S13515560155.10.653.86.411.21006002
73×3000-DDW(One piece upsetted)7383000NC23792679S13514570155.10.5753.86.411.21006004
73×3000-DH26(One piece upsetted)7383000DH26873083S13519200155.10.7553.86.411.21006017
73×3000-DH23(One piece upsetted)7383000DH23812885S13515730155.10.5953.86.411.21006001
83×3000-WM80(One piece upsetted)8393000WM80923888.9S13522095198.60.5961.25.69.81008001
83×4500-WM80(One piece upsetted)8394500WM80923888.9S13522095198.60.5961.28.414.81008002
89×3000(One piece upsetted)88.98.383000DH31103.550.888.9S135277151930.6865.65.29.21009018
89×4500(One piece upsetted)88.99.353000DH311054288.9S13533815221.80.7465.65.29.21009004
89×6000-DH31(One piece upsetted)88.99.356000DH311054288.9S13533815221.80.7465.610.518.51009013
Product codePipe body OD
(mm)
Wall thickness
(mm)
working length
(mm)
Thread typeTool joint OD
(mm)
Tool joint inside diameter of the pin end
(mm)
Pin connection length
(mm)
GradeDrill pipe torsional strength
(N.M)
Drill pipe tensile strength
(T)
Tool Joint and body torsional strength ratioMinimum bend radius
(m)
Angle
(°)
Bend slope ratio
(%)
Part Number
89×4500-DH31(Rotary friction welding)88.99.354500NC31104.83698S13531905221.80.765.67.913.81009022
101.6-6000-NC38(Rotary friction welding)101.68.86000NC3812746110S13554325243.50.92759.216.11010001
101.6×6000-NC40(Rotary friction welding)101.68.386000NC40139.750.8114.3S13549165232.90.86759.216.11010003
114.3×6000-NC38(Rotary friction welding)114.38.566000NC3812746110S13554130269.90.7284.48.214.31011004
114.3-6000-NC40(Rotary friction welding)114.38.566000NC40139.750126.3S13569695269.90.9384.48.214.31011003
114.3×6000-NC46(Rotary friction welding)114.38.566000NC46158.862126.3S13595360269.91.2784.48.214.31011001
127×6000-NC50(Rotary friction welding)1279.196000NC50168.2869.8126.3S135122815322.81.2393.67.312.91012001
127×9600-NC50(Rotary friction welding)1279.199600NC50168.2869.8126.3S135122815322.81.2393.611.720.81012002
139.7×9600-9.19(Rotary friction welding)139.79.1996005 1/2FH190.5101.6139S13595060357.60.7610310.718.81013002
139.7×9600(Rotary friction welding)139.710.5496005 1/2FH190.576.2139S135168170405.91.2210310.718.81013001
168.3×9600(Rotary friction welding)168.310.5496006 5/8FH215.9108127S135146780495.80.7124.28.915.61014001
168.3×9600-9.19(Rotary friction welding)168.39.1996006 5/8FH215.9108127S1351467804360.79124.28.915.61014002
193.7×9600(Rotary friction welding)193.79.1996006 5/8FH215108127S135146790505.60.59142.87.713.51025001
193.7×9600-7 5/8FH (Rotary friction welding)193.79.1996007 5/8FH215150127S135177850505.60.7142.87.713.51025002
193.7×9600-6 5/8IF (Rotary friction welding)193.79.1996006 5/8IF230132127S135169865505.60.68142.87.713.51025003

ZLCONN HDD Drill Rods Advantages:

1.ZLCONN  HDD Drill Rods body: cold draw seamless pipe . so the pipe have the accurate size , good centralizer. 
2. ZLCONN HDD Drill Rods material: The same grade as Sandvik, and our HDD Drill Rods are made of high-quality structural alloy steel, and after a special heat treatment process, they can meet the requirements of excavating harder rock layers and have longer service life.
3.ZLCONN  HDD Drill Rods thread connector: Heat and Nitrogen treatment , so the pipe is more durable and easier to load and unload .
4. ZLCONN HDD Drill Rods feature: The drill rods adopt advanced thread manufacturing technology and advanced surface treatment technology , and are manufactured according to precise tolerances . They have the characteristics of tight connection , good energy transmission effect , strong wear resistance and easy disassembly. 5.ZLCONN HDD Machine Quality Control: All the drill rods are strictly controlled to ensure that they have a satisfactory high quality.

ZLCONN HDD Drill Rods Mechanical property test results 

ZLCONN HDD Drill Rods

 

TO Chose the Right HDD Drill Rods

HDD drill rods (also called as drill tubes or drill pipes) are the mechanism to transmit impact force and rotation torque to DTH hammers and bits, as well as offer pass for the air flow.

In principle, the lighter the rod is, the better it is for the drilling operation. So a thinner one is always preferable than a thicker one if other parameters were the same. While in the mean time, the yield strength and the tensile strength must also be taken into accounts, which means relatively rod wall thickness would be needed to obtain enough strength. Of course, once the thickness is rigidly requested as thin as possible to minimize the drill string weight, there is also another method to get optimum drill tubes that using better grade steels. 

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