Pile Top Large Hole reverse Circulation Drilling Rigs
DDC b.v. specialised in drilling hardrock!
Drilling diameters up to 5000 mm
Drilling depth up to 400 metres
Available drilling rigs
Drill rig WIRTH PBA 8010 drilling diameters till 2000 mm.
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Technical Specifications
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Drill mast max. operating load:
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Pull-up
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800 kN
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Pull-down
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500 kN
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Stroke
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3.5 m
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Drill pipe retaining doors
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For NW 200 drill-pipe
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Hydraulic power swivel
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B6
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1st gear: 3-13 r.p.m.
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Torque:
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105 kNm
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2nd gear: 6.5-28 r.p.m.
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Torque:
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45 kNm
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3rd gear: 15-65 r.p.m.
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Torque:
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19 kNm
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The total pick-up of the drill rig will be approximately 25 tonnes.
Technical specification
type rig : WIRTH PBA 306/1200/150
max. drilling diameter : 1300 mm
max. power swivel torque : 81 kNm
max. drill string weight : 30 tonnes
max. thrust force : 30 tonnes
max. pull back force : 40 tonnes
hydraulic power pack : 150 kW/204 Hp
unit weight drill rig : 15 tonnes
unit weight hydraulic
clamping device : 3 tonnes
specification drill pipe
NW 150 (ID) : 150 mm
max. length per rod : 3000 mm
weight per rod : 145 kgs
drill bit : reverse circulation drill bit 21” diameter
required air compressor for airlift drilling: 10 m3/min – 7 bar
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History 
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