Down-the-Hole Drilling Machines

Goodeng top GMD80S air borewell drill and blast hole drill rig in mining

1. Cummins Engine QSZ13-C550 Power 412 kW

2. Two-stage air compressor 35m³/min 28bar

3.Cooling system suitable for 50° external environment

4. Automatic rod changing system

5. Dry dust collector with automatic filter cleaning

5. High strength aluminum alloy feed beam

6. Dual speed hydraulic traveling motor

7. Electric fuel refueling pump

Technical Parameter

Hole diameter	φ90-250mm	3.5-9.8 in
DTH hammer	4 in/5 in/6 in/7 in
Rod changing system	Drill rod storage	5+1
	Drill rod diameter	114 mm	4.5 in
	Drill rod length	6 m	19.7 ft
	Max. Hole depth	36 m	118.1 ft
Hydraulic rotation head	Rotation speed	0-80 rpm
	Drilling torque	4000N·m	2950 ft·lbs
	Max. Rotation torque	6000N·m	4425 ft·lbs
Engine	Rated power	412 KW/1700 rpm	552.7 hp
Engine	Fuel tank	850 L	224.5 gal
Two-stage air compressor	Max. Working pressure	28 bar	406 psi
Two-stage air compressor	Max. displacement	35m³/ min	1236.5 ft ³/min
Drill boom type	High strength single straight boom
High strength steel feed beam Chain motor type	Total length	9740 mm	32 ft
	Travel length	6500 mm	21.3 ft
	Feed extension	1600 mm	5.3 ft
	Max. Feed rate	0.9 m/s	2.95 ft/s
	Max. Feed force	40 kN	8992 lbs
	Max Tractive pull	50 kN	11240 lbf
Adjustable flat chssis	Traveling speed	1.5/3 km/h	0.93/1.86 mph
	Max. Traction force	172 k N	38658 lbs
	Gradient	25°
	Track oscillation	±10°
	Ground clearance	420 mm	16.54 in
Transportation Condition	Weight	22000 kg	48502 lbs
Transportation Condition	Size(LWH)	1280025003600mm	42 ft* 8.2 ft*11.8ft

Product Introduction

The GMD80S is a standalone diesel-powered crawler-mounted intelligent down-the-hole drill rig designed to meet the needs of large-scale production drilling applications in open-pit mining and large quarry applications.

Ergonomic cab design
The cab provides an excellent view of the drilling area, bringing an optimized experience to the drilling operator. Machine information is integrated on a touch display, and it is the quietest and most ergonomic cab in a down-the-hole (DTH) drill rig.
Strong and durable main components
The main components of this drilling rig are strong and durable, with excellent maneuverability and strong transportation force, which improves working efficiency and operational stability.