DR-90T DTH Drilling Rig
73.5 kW diesel · Depth rating 30 m · Feed travel 3,890 mm
The DR-90T DTH Drilling Rig is a crawler-mounted diesel rig for mining and rock excavation. It has a 73.5 kW engine, 3,890 mm feed travel and a hole-depth rating of 30 m.
Technical specifications
| Model | DR-90T |
|---|---|
| Engine rated power | 73.5 kW |
| Hole depth rating | 30 m |
| Drill pipe diameter | 76 mm |
| Drill pipe length | 3,000 mm |
| Feed travel length | 3,890 mm |
| Feed extension | 1,220 mm |
| Maximum pull-up force | 25 kN |
| Gradeability | 25° |
| Ground clearance | 350 mm |
| Weight without options | 7,340 kg |
| Air consumption | 10–20 m³/min |
Feed beam and hose routing
The aluminium-alloy feed beam carries the rotary head. A hydraulic motor and roller chain form the feed system, while a hose follower guides the rotary-head lines alongside the beam.
Side-mounted operating console
The operating console sits beside the engine enclosure near the boom pivot. It groups levers, switches, a display and a circular gauge, with the hydraulic connections arranged below.
DR-90T DTH Drilling Rig for rock excavation
The DR-90T DTH Drilling Rig is a crawler-mounted surface rig with a 73.5 kW diesel engine and a hole-depth rating of 30 m.
Drill pipe and feed system
The rig uses 76 mm diameter drill pipe in 3,000 mm lengths. Feed travel is 3,890 mm, feed extension is 1,220 mm and maximum pull-up force is 25 kN. The feed system combines a hydraulic motor and roller chain along an aluminium-alloy feed beam, with a hose follower for the rotary-head lines.
Operating console and crawler chassis
The side console groups operating levers, switches, a display and a circular gauge beside the engine enclosure. Ground clearance is 350 mm, and machine weight without options is 7,340 kg.
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