Jinzhou City Shitan Machinery Equipment CO. LTD.
Jinzhou City Shitan Machinery Equipment CO. LTD Drilling Rig / Drill Rod / Drill Bit / Track Transporter / Drilling Mud Pump
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High Strength Rock Drill Rods Available for Water Well and Mine Well Drilling
How to Select Drilling Rods?
Drill rods that are used in applications such as DTH/ DTHR/ DR basically comprise of a steel pipe with a pin at one end and a box on the other. The job of the drill rod is to transmit rotational torque and thrust from the drill rig rotary head to down hole drilling tools.
According to different application, different diameters of drill rods are needed, basically, smaller DTH hammers need smaller DTH drill rods, vice versa. Usually we are offering 50mm, 60mm, 76mm, 89mm, 95mm, 102mm, 114mm, 127mm, 140mm.
Product Parameter:
| Size | Nominated Weight (lb) (kg) | Length (ft) (m) | OD (in) (mm) | Pipe Wall thickness (in) (mm) | Thickening OD (in) (mm) | Grade | Min. Bend Radius (m) | ||||||
| 2 | 50 | 56.2 | 25.5 | 10 | 3 | 1.968 | 50.8 | 0.256 | 6.5 | 2.24 | 57 | S135 | 38 |
| 2 3/8 | 60 | 79.4 | 36 | 10 | 3 | 2.375 | 60.32 | 0.295 | 7.5 | 2.657 | 67.5 | R780 | 42 |
| S135 | 36 | ||||||||||||
| 2 7/8 | 73 | 101.4 | 46 | 10 | 3 | 2.875 | 73.02 | 0.315 | 8.0 | 3.15 | 80 | R780 | 65 |
| 3 1/2 | 89 | 220.4 | 100 | 15 | 4.5 | 3.5 | 88.9 | 0.394 | 9.99 | 3.62 | 92 | R780 | 75 |
