Specifications
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Standard HDD Drill Pipe Specifications ＋
| Pipe OD | Thread | Length | Joint OD | Max. Torque (Nm) | Recommended Make-up Torque (Nm) | Bend Radius | Max. Bend Angle | Max. Slope (%) | Weight (kg) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | in | mm | ft | mm | in | m | ft | ||||||
| 73 | 2.875 | NC23 (BDS) | 3,000 | 9.84 | 82 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 45 |
| 76 | 3 | NC26 | 3,000 | 9.84 | 88 | 3.465 | 16,560 | 9,936 | 54 | 177.2 | 3.1 | 5.3 | 53 |
| 83 | 3.25 | ZX80 | 3,000 | 9.84 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 2.9 | 4.9 | 59 |
| 4,500 | 14.76 | 12,223 | 4.3 | 7.3 | 81 | ||||||||
| 89 | 3.5 | NC31 | 3,000 | 9.84 | 105 | 4.134 | 29,407 | 17,644 | 64 | 210 | 2.7 | 4.6 | 71 |
| 4,500 | 14.76 | 17,644 | 4 | 6.9 | 95 | ||||||||
| 102 | 4 | NC38 | 4,500 | 14.76 | 127 | 5 | 39,515 | 23,709 | 73 | 239.5 | 3.5 | 6 | 123 |
| 6,000 | 19.69 | 23,709 | 4.7 | 8 | 160 | ||||||||
| 114 | 4.5 | NC38 | 6,000 | 19.69 | 127 | 5 | 51,573 | 30,944 | 82 | 269 | 4.2 | 7.1 | 165 |
| 114 | 4.5 | NC46 | 6,000 | 19.69 | 157 | 6.181 | 68,764 | 41,259 | 82 | 269 | 4.2 | 7.1 | 203 |
| 127 | 5 | NC50 | 6,000 | 19.69 | 168.3 | 6.625 | 108,759 | 65,255 | 91 | 298.6 | 3.8 | 6.4 | 250 |
| 9,600 | 31.5 | 108,759 | 65,255 | 6 | 10.2 | 350 | |||||||
| 140 | 5.5 | 5 1/2FH | 9,600 | 31.5 | 190.5 | 7.5 | 117,340 | 70,404 | 100 | 328 | 5.5 | 9.3 | 450 |
| 168 | 6.625 | 6 5/8FH | 9,600 | 31.5 | 209.6 | 8.25 | 120,799 | 72,480 | 121 | 397 | 4.5 | 7.7 | 460 |
Compatible with Vermeer HDD Rigs ＋
| Rig Compatibility* | Thread | Length | Pipe OD | Joint OD | Pin Length (mm) | Max. Torque (Nm) | Bend Radius | Max. Bend Angle | Max. Slope (%) | Weight (kg) | Part Number | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | ft | mm | inch | mm | inch | m | ft | ||||||||
| D20x22, D23x30 | #400 | 3,048 | 10 | 52 | 2.06 | 57 | 2.25 | 63.5 | 3,525 | 34.3 | 112.5 | 5.1 | 8.7 | 27 | NS10312 |
| D24x40 | #600 | 3,048 | 10 | 60 | 2.38 | 68 | 2.63 | 63.5 | 5,695 | 39.6 | 130 | 4.4 | 7.5 | 32 | NS10024 |
| D40x40 | #600 | 4,572 | 15 | 60 | 2.38 | 68 | 2.63 | 63.5 | 5,695 | 39.6 | 130 | 6.6 | 11.3 | 47 | NS10012 |
| D33x44, D36x50 | #650 | 3,048 | 10 | 60 | 2.38 | 70 | 2.75 | 63.5 | 6,800 | 39.6 | 130 | 4.4 | 7.5 | 34 | NS10023 |
| D33x44, D36x50 | #650 | 4,572 | 15 | 60 | 2.38 | 70 | 2.75 | 63.5 | 6,800 | 39.6 | 130 | 6.6 | 11.3 | 48 | NS10058 |
| D36x50, D40x55 | #700 | 3,048 | 10 | 67 | 2.63 | 79 | 3.1 | 76.2 | 7,457 | 48 | 157.5 | 3.6 | 6.19 | 49 | NS10059 |
| D36x50, D40x55 | #700 | 4,572 | 15 | 67 | 2.63 | 79 | 3.1 | 76.2 | 7,457 | 48 | 157.5 | 5.5 | 9.28 | 71 | NS10060 |
| D50x100, D60x90 | #900 | 3,048 | 10 | 73 | 2.88 | 83 | 3.25 | 88.9 | 12,202 | 52 | 170.6 | 3.3 | 5.7 | 45 | NS10006 |
| D50x100, D60x90 | #900 | 4,572 | 15 | 73 | 2.88 | 83 | 3.25 | 88.9 | 12,202 | 52 | 170.6 | 5 | 8.5 | 65 | NS10061 |
| D50x100 | #900 | 4,572 | 15 | 76 | 3 | 83 | 3.25 | 88.9 | 12,202 | 54.7 | 179.5 | 4.8 | 8.1 | 78 | NS10007 |
| D80x100 | #800 | 4,572 | 15 | 89 | 3.5 | 92 | 3.62 | 88.9 | 13,560 | 64 | 210 | 4.1 | 7 | 99 | NS10062 |
| D130x150 | #1000 | 6,096 | 20 | 89 | 3.5 | 111 | 4.375 | 88.9 | 20,400 | 64 | 210 | 5.5 | 9.3 | 140 | NS10064 |
*Examples only. Please contact our sales team to clarify your rig’s specific tooling needs.
Compatible with Ditch Witch HDD Rigs ＋
| Rig Compatibility* | Thread | Length | Pipe OD | Joint OD | Pin Length (mm) | Max. Torque (Nm) | Bend Radius | Max. Bend Angle | Max. Slope (%) | Weight (kg) | Part Number | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | ft | mm | inch | mm | inch | m | ft | ||||||||
| JT20 | 1.94 | 3,000 | 9.84 | 52 | 2.06 | 67 | 2.63 | 75 | 2,980 | 34.3 | 112.5 | 5 | 8.5 | 28 | NS10268 |
| JT2720M1, JT3020M1 | 2.11 | 3,000 | 9.84 | 60 | 2.38 | 76.2 | 3 | 84.7 | 5,420 | 39.6 | 130 | 4.3 | 7.4 | 36 | NS10001 |
| JT25/30 | 2.11 | 3,000 | 9.84 | 60 | 2.38 | 70 | 2.75 | 84.7 | 5,420 | 39.6 | 130 | 4.3 | 7.4 | 34 | NS10269 |
| JT4020 | 2.40 | 4,500 | 14.76 | 73 | 2.88 | 82 | 3.23 | 99.5 | 6,800 | 52 | 170.6 | 4.9 | 8.3 | 65 | NS10073 |
| JT4020M1 | 2.59 | 4,500 | 14.76 | 76 | 3 | 89 | 3.5 | 91.5 | 6,800 | 54 | 177.2 | 4.7 | 8 | 76 | NS10033 |
| JT7020M1, JT8020M1, JT100M1 | 3.27 | 4,500 | 14.76 | 89 | 3.5 | 102 | 4 | 132.5 | 13,560 | 64 | 210 | 4 | 6.9 | 98 | NS10075 |
*Examples only. Please contact our sales team to clarify your rig’s specific tooling needs.
Welded Drill Pipe Specifications ＋
| Pipe OD | Thread | Length | Joint OD | Max. Torque (Nm) | Recommended Make-up Torque (Nm) | Bend Radius | Max. Bend Angle | Max. Slope (%) | Weight (kg) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | in | mm | ft | mm | in | m | ft | ||||||
| 73 | 2.875 | NC23 | 3,000 | 9.84 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 |
| 73 | 2.875 | NC26 | 3,000 | 9.84 | 88 | 3.465 | 16,055 | 9,633 | 52 | 170.6 | 3.3 | 5.6 | 56 |
| 83 | 3.25 | ZX80 | 3,000 | 9.84 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 2.9 | 4.9 | 61 |
| 83 | 3.25 | ZX80 | 4,500 | 9.84 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 79 |
Forged Drill Pipe Specifications ＋
| Rig Compatibility* | Thread | Length | Pipe OD | Joint OD | Pin Length (mm) | Max. Torque (Nm) | Bend Radius | Max. Bend Angle | Max. Slope (%) | Weight (kg) | Part Number | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | ft | mm | inch | mm | inch | m | ft | ||||||||
| DDW200 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10008 |
| DDW320 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10010 |
| DW400 | NC26 | 3,000 | 9.84 | 73 | 2.875 | 88 | 3.465 | 16,055 | 9,633 | 52 | 170.6 | 3.3 | 5.6 | 56 | NS10009 |
| XCZMG | |||||||||||||||
| XZ180, XZ200 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10079 |
| XZ320, XZ360 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10080 |
| XZ400 | ZX80 | 3,000 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 2.9 | 4.9 | 61 | NS10081 |
| XZ400 | ZX80 | 4,500 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 79 | NS10082 |
| Goodeng | |||||||||||||||
| GD180 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10106 |
| GD280 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10107 |
| GD320 | NC26 | 3,000 | 9.84 | 73 | 2.875 | 88 | 3.465 | 16,055 | 9,633 | 52 | 170.6 | 3.3 | 5.6 | 56 | NS10009 |
| GD320, GD380 | ZX80 | 3,000 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 61 | NS10081 |
| GD380 | ZX80 | 4,500 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 79 | NS10082 |
| Drilltek | |||||||||||||||
| ZT16/18 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10018 |
| ZT25 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10107 |
| Hanlyma | |||||||||||||||
| HL518 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10025 |
| HL532 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10096 |
| HL536 | ZX80 | 3,000 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 61 | NS10081 |
| HL536 | ZX80 | 4,500 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 4.3 | 7.3 | 79 | NS10082 |
| Dilong | |||||||||||||||
| DL220 | ZX60 | 3,000 | 9.84 | 60 | 2.375 | 68 | 2.677 | 8,294 | 4,976 | 39.6 | 130 | 4.3 | 7.4 | 32 | NS10159 |
| DL280, DL320 | NC23 | 3,000 | 9.84 | 73 | 2.875 | 80.5 | 3.169 | 13,978 | 8,387 | 52 | 170.6 | 3.3 | 5.6 | 46 | NS10107 |
| DL450 | ZX80 | 3,000 | 9.84 | 83 | 3.25 | 92 | 3.622 | 20,372 | 12,223 | 59 | 193.6 | 2.9 | 4.9 | 61 | NS10081 |
HDD Drill Pipe & Trenchless Drilling Tools
North Star supplies HDD drill pipe, forged HDD drill rods, welded HDD drill rods and HDD downhole tooling for horizontal directional drilling. From pilot drilling to reaming and pullback, the right drill string and tooling configuration starts with your rig, connection and ground conditions.
Explore drill rod options for trenchless utility installations and infrastructure crossings, with dimensions and connections selected around the requirements of each project.
Match the Drill Rods & Tooling to Your HDD Project
Choose HDD drill rods as part of a complete drilling system. Confirm rig compatibility, operating loads and the planned bore profile before selecting a configuration.
Forged HDD Drill Rods
Consider forged HDD drill rods where the project specification calls for forged construction. Confirm pipe and joint dimensions, thread configuration, torque limits and minimum bend radius against the exact rod specification.
Welded HDD Drill Rods
Evaluate welded HDD drill rods against the same rig and project requirements. Compare the specified construction, dimensions and operating limits rather than selecting on product name alone.
HDD Downhole Tooling
Select pilot drilling, reaming and connection tooling for the drilling stage, ground conditions and bore requirements. Check interfaces across the drill string and downhole assembly.
Configured Around Your Rig & Bore Plan
Use the specification tables above as a starting point. Send the following information so North Star can review the required drill pipe and trenchless tooling configuration.
Rig Make & Model
Provide the rig manufacturer and exact model. The published range includes examples for Vermeer, Ditch Witch and other HDD rigs; compatibility must be confirmed for your specific setup.
Pipe & Joint Dimensions
Specify pipe outside diameter, rod length, joint outside diameter and any required wall thickness or pin dimensions. Include a drawing or existing part number where available.
Thread Connection
Identify the pin and box thread type and size. Published examples include NC, ZX and rig-specific connections; matching dimensions alone does not confirm interchangeability.
Torque & Operating Loads
Confirm the required operating torque and pullback conditions. Maximum torque and recommended make-up torque are different values; use the limits specified for the selected rod.
Bend Radius & Bore Profile
Provide the planned bore path and required minimum bend radius. Check the exact rod limits, including bend angle and slope where specified, before final selection.
Ground & Tooling Requirements
Describe the ground conditions, pilot hole, final bore diameter and drilling stages. Include tooling connections, quantities and any special project requirements.
HDD Tools for Trenchless Infrastructure
Horizontal directional drilling supports underground installations where a planned bore path can reduce the need for continuous surface excavation. Rod and tool selection depends on the site and engineering requirements.
Utility Installation
Drill string and tooling selection for underground water, gas, power and telecommunications installation projects.
Infrastructure Crossings
Configurations for planned crossings beneath roads, railways and other obstacles, subject to project design and site conditions.
Reaming & Pullback
Tooling interfaces and drill pipe specifications coordinated with hole enlargement and product installation requirements.
A Drill Pipe Manufacturer Built Around the Application
North Star combines drill pipe and drill tool manufacturing with configuration support for the utilities, mining, construction and water well industries.
Established in 1998
Drill pipe and drill tool manufacturing experience serving multiple drilling industries.
500+ Employees
A manufacturing organization with sites and offices in Beijing, Zhangjiakou and Cangzhou.
Configuration Support
Share rig details, connection requirements and your bore plan for an application-specific product review.
Common Questions About HDD Drill Rods & Tooling
What is HDD drill pipe used for?
HDD drill pipe connects the horizontal directional drilling rig to the downhole assembly. It transmits rotation and axial loads and provides a passage for drilling fluid during the drilling process.
Are HDD drill rods and HDD drill pipe the same?
The terms are often used for the tubular drill string components in horizontal directional drilling. For procurement, identify the exact construction, dimensions, thread and part specification rather than relying on the name alone.
How do I choose between forged and welded HDD drill rods?
Compare the specified construction and operating limits with your rig, bore profile and project requirements. Confirm dimensions, thread compatibility, torque and bend radius for the exact product before choosing.
Do you supply drill rods for Vermeer and Ditch Witch rigs?
The North Star HDD specification tables list example configurations for Vermeer and Ditch Witch rigs. Send your exact rig model and existing rod or connection details so the team can confirm a suitable configuration.
What HDD drill pipe sizes and threads are available?
The published tables contain a range of pipe diameters, lengths and thread configurations, including NC, ZX and rig-specific examples. Availability and compatibility should be confirmed against the exact part or drawing.
Why does minimum bend radius matter?
Minimum bend radius defines a bending limit for the selected drill rod. The bore design and operating practice must remain within the applicable product limits; a tighter curve can increase stress and fatigue.
How should HDD downhole tooling be selected?
Start with the drilling stage, ground conditions, pilot and final bore diameters, and connection requirements. Review how the tooling fits the rig and complete drill string before ordering.
What information is needed for an HDD drill pipe quotation?
Send the rig make and model, pipe diameter, rod length, joint dimensions, pin and box thread details, quantity, ground conditions and bore requirements. Add a part number, drawing or connection photos where available.
Need the Right HDD Drill Pipe Configuration?
Tell us your rig make and model, rod dimensions, thread connection, bore profile and ground conditions. North Star can review your requirements and help identify suitable drill rods and downhole tooling.