The C620H Jack-less Down the Hole Drill is designed to drill holes ranging from a diameter of 4-1/2 inch (114.3mm) to 6-1/2 inch (165.1mm) to a maximum depth of 118 ft (36m). The C620H is built for high efficiency and productivity to drill in medium to hard Limestone, Dolomite quarries and Aggregate mines.
Robust yet compact design provides it with better manoeuvrability in tight corners and higher spacing – burden range.
Available in standard Hydraulic, Electric over Hydraulic and Fully Autonomous options based on your mining needs.
Operating at rated speed and lower load factor assures longevity of the engine, that produces abundant power to work under extreme conditions.
| SPECIFICATION | Imperial | Metric |
|---|---|---|
| Drilling Diameter | 4-1/2 to 6-1/2 inch | 114 to 165 mm |
| Pipe Size | 3-1/2 to 4-1/2 inch | 88.9 to 114.3 mm |
| SP - Single Pass depth | ||
| Mast | 19 ft 8 inch | 6 m |
| MP - Multi Pass depth | ||
| Mast 5 POD | 118 ft | 36 m |
| Compressor | 750 cfm – 250 psi | 21.2 m3/min -17.2 bar |
| Pull Down Capacity | 9000 lbs | 4083 Kg |
| Pull Up Capacity | 11000 lbs | 4990 Kg |
| Feed Rate Rapid | 196 ft/min | 59.8 m/min |
| Rotary Torque | 35400 in-lbs | 4000 Nm |
| Rotary Speed | 0 to 70 rpm | |
| Engine | 415 HP | 309 kW |
| Undercarriage | Triple Grouser with 450mm width & sufficient rollers | |
| Ground Bearing pressure | 14.5 psi | 100 kPa |
| Speed in slope / Plain | 0.9 / 1.86 mph | 1.5 / 3.0 km/hr |
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