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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | ISO,CE |
| Model Number | NQ,HQ,PQ |
Mining Drill Rod Brief Introduction
1. Usage of Drill Rod: Be used for mining equipment, quarry stone equipment, constructure.
2. Function of Drill Rod:
(1). On the one hand, drill rod connect the drilling rig main body, on the other hand, connect DTH hammer and drill bit.
(2). Transmit the power to drill bit.
(3). Bring pressure to bear on the equipment.
(4). The drill rod can be transported to the drilling mud to the drill bit, and together with the drill improve, reduce or rotating bottom outlet device.
3. Shape of Drill Rod: Drill rod tail is screwed.
Various Types of Drill Rod:
| Model | Diameter (mm) | Drill Rod Material | Joint Material | Wall Thickness | Weight |
| 42 DTH Drill Rod | Dia. 42*1 meter | 20 # | 45 # | 4 mm | 4.6 kg |
| 60 DTH Drill Rod | Dia. 60 *1 meter | 20 # | 45 # | 4.5 mm | 8 kg |
| Dia. 60 *2 meters | 20 # | 35CYMO | 6 mm | 8.9 kg | |
| 68 DTH Drill Rod | Dia. 68 *2 meters | 36Mn2v(DZ50) | 35CYMO | 6 mm | 21.4 kg |
| Dia. 68 *3 meters | 36Mn2v(DZ50) | 35CYMO | 6 mm | 30.5 kg | |
| 76 DTH Drill Rod | Dia. 76 *2 meters | 36Mn2v(DZ50) | 35CYMO | 6 mm | 24 kg |
| Dia. 76 *3 meters | 36Mn2v(DZ50) | 35CYMO | 6 mm | 34 kg |
A blast hole drill comprising a mast including two parallel mast cords, a carriage, and a rotary head mounted on the carriage and adapted to engage a drill pipe. The rotary head includes a drive pinion on a rack on one of the mast cords, and the drive pinion is on one side of at least one of the mast cords. A backup wheel assembly is on the opposite side of the respective mast cord opposite the pinion and includes a wheel holding assembly support rotatably supporting a backup wheel, a yoke having an opening through the yoke, a plunger threadably received in the yoke opening, the wheel assembly support being slidably received on the plunger, and Belleville washers extending around the plunger and between the yoke and the wheel holding assembly support, the Belleville washers extending between an abutment on the plunger and the wheel holding assembly support.
6321859 Blasthole drill with bi-material roller for supporting a load 2001-11-27 Boyd 152/5
6298926 Blast hole drill with improved deck wrench 2001-10-09 Dalkert et al. 175/209
5653297 Blasthole drill with improved automatic breakout wrench 1997-08-05 Whisenhunt 175/162
5622232 Blasthole drill with drill-through pipe rack 1997-04-22 Whisenhunt 175/52
4605078 Carriage feed system 1986-08-12 Bukovitz et al. 175/113
4371041 Multi-purpose mobile drill rig 1983-02-01 Becker et al. 173/147
4049064 Multi function drill drive system 1977-09-20 Chubb et al. 173/147
3867989 PULLDOWN MECHANISM FOR ROTARY DRILL APPARATUS 1975-02-25 Hisey et al. 173/147
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