Drill Rods
Steel Drill Rods
John Lawrie Tubulars manufacture friction welded steel drill rods in-house using our own friction welder and we have the capacity to friction weld up to 152.4 mm diameter (maximum wall thickness of 19.1 mm) and up to 9.5 m long.
We also manufacture tool joints in house using our own CNC lathes.
All our threads are machined and inspected using fully certified and calibrated API thread gauges.
Our steel rods are made for Down the Hole drilling (hammer), rotary applications (waterwell drilling / mineral exploration and ground engineering) and quarry drilling – all made from high tensile and yield materials to produce a robust, long lasting product. We then nitride harden our tool joints to give even greater wear protection to prolong the effective working life of the steel drill rod.
Some of our product range is shown in the below downloads but it is not limited to these, get in touch to discuss your specific requirements.
We also manufacture shrink and welded style drill rods up to 406 mm diameter using the same material properties. All welds can be NDT tested upon request.
Spec Sheets:
Outside Diameter (mm)
76.2
76.2
76.2
76.2
88.9
88.9
88.9
88.9
88.9
88.9
88.9
88.9
101.6
101.6
101.6
114.3
114.3
114.3
114.3
114.3
114.3
127
127
127
139.7
139.7
139.7
193.7
203.2
254
Bore
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
31.8
44.5
44.5
44.5
25.4
44.5
44.5
38.1
38.1
38.1
38.1
44.5
44.5
68.3
68.3
68.3
57.2
57.2
57.2
82.6
82.6
101.6
Thread (mm)
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
2.3/8″
3.1/2″
3.1/2″
3.1/2″
3.1/2″
2.7/8″
2.7/8″
3.1/2″
3.1/2″
3.1/2″
4.1/2″
4.1/2″
4.1/2″
6.5/8″
6.5/8″
8.5/8″
Thread
API reg
API reg
API reg
API reg
API reg
API reg
API reg
API reg
API reg
IF
IF
IF
API reg
IF
IF
API reg
API reg
API reg
API reg
IF
IF
IF
IF
IF
API reg
API reg
API reg
API reg
API reg
API reg
Wall Thickness (mm)
4
6.35
8
9.5
4.5
6.35
8
9.5
6.35
6.35
8
9.5
6.35
8
9.5
4.5
6.35
8
9.5
6.35
9.5
6.35
8
9.5
8
9.5
12.5
12.5
9.5
16
Popular Applications
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
DTH
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
Rotary
(HWY)
(HWY)
(HWY)
(HWY)
(HWY)
(HWY)
Drill Rods
(1.1MB)
Download
Drill Rod Tool Joints
(566.1KB)
Download
76mm Drill Rods
(42.2KB)
Download
88.9mm Drill Rods
(50.2KB)
Download
114.3 / 139.7mm Drill Rods
(38.4KB)
Download
Rotary Percussive
