DR-120M Anchor Drilling Rig
Depth 120 m · Diameter 280 mm · Feed stroke 4.8 m
The DR-120M Anchor Drilling Rig is a crawler-mounted hydraulic rig with a 120 m maximum drilling depth, 280 mm maximum drilling diameter and 4.8 m feed stroke.
Technical specifications
| Model | DR-120M |
|---|---|
| Maximum drilling depth | 120 m |
| Maximum drilling diameter | 280 mm |
| Maximum parallel height | 3,800 mm |
| Feed stroke | 4.8 m |
| Hydraulic system pressure | 280 bar |
| Power head | HB520 |
| Maximum torque | 7,500–16,000 N·m |
| Maximum rotation speed | 84–135 rpm |
| Percussion frequency | 1,800–2,400 blows/min |
| Ground pressure | 4.9 N/cm² |
| Total weight | 14 t |
| Transport dimensions | 7,800 × 2,260 × 2,700 mm |
Power head and guided feed
The power head travels on a carriage along the mast, with a 4.8 m feed stroke. The guide rail, feed chain and hydraulic hoses run beside the carriage. A clamp assembly sits at the front end of the mast.
Hydraulic mast positioning
A jointed hydraulic arm supports the mast above the crawler chassis. Hydraulic cylinders position the arm and mast, allowing upright and horizontal drilling positions. The horizontal mast can be raised to different working heights.
Grouped manual controls
A side-mounted station brings the gauges and operating levers together beside the mast support. The lever bank sits above the hydraulic valve connections, with hoses routed from this area into the machine.
DR-120M Anchor Drilling Rig: positioning and feed
The DR-120M Anchor Drilling Rig carries its drilling mast on a jointed hydraulic arm. The mast can be positioned upright or horizontally at different heights. A power-head carriage travels along the mast, with a clamp assembly at its front end.
What is the hydraulic system pressure?
The hydraulic circuit pressure is 280 bar, equivalent to 28 MPa.
What are the transport dimensions and weight?
Transport dimensions are 7,800 × 2,260 × 2,700 mm. Total machine weight is 14 t.
Explore our anchoring rigs, or request DR-120M Anchor Drilling Rig specifications.