Fleet Options

RUC Cementation Mining Contractors is able to supply a range of Raise Boring equipment, with the expertise and experience to tackle any project, anywhere in the world.

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Box Hole Boring

Robbins 53R

Raise Boring

Ingersoll Rand RBM7 Robbins 61R Robbins 71R Robbins 83R Robbins 85R Wirth HG330 Strata 850 Strata 950
 

Fleet > Raisebore > Robbins 61R

RUC Cementation Mining Contractors has modified their fleet of Robbins 61R Raisebores to create a 'low profile' rig. This allows the Robbins 61R to operate in more confined spaces, where height restrictions prevent other equipment from operating.

Robbins 61R

Specifications


Raise Diameter Up to 2.1 meter nominal diameter
Raise Length 100 meters
Pilot Hole Diameter 11" Tri-cone bit size
Drive -
Drive Type Hydraulic Drive
Drive Speeds 0-24 rpm
Ream Speeds 0-6 rpm
Pilot Thrust 109 tonnes at 24 MPA
Reaming Pull 230 tonnes at 27.5 MPA
Weight -
Transport Means Sled
Vertical Drilling 3m (retracted) / 4.5m (extended)
Dip Angle Limit Vertical to 45º Flatter angles to 30º from horizontal with special supports
Power Requirements 170 KVA, 1000 Volt, 3 phase, 50 cycle
Water Consumption 52 litres per second at 100 PSI (approx). Water is recycled through settling sumps