Human errors are prevented with built-in interlocks. Valuable functions include anti-jamming, auto makeup and gradual power ramp-up during pilot drilling and reaming.
The hydraulic-drive engine features variable speed and torque-limiting controls to keep you up and drilling longer at maximum efficiency.
The Robbins 53RH is a unique multipurpose raise drill, able to perform upwards boxhole boring as well as conventional raiseboring.
The Robbins 53RH is a low profile raise drill for holes ranging from 1.2 to 2.4 m (4-8 ft.) in diameter. This unique multipurpose raise drill is able to perform upwards boxhole boring as well as conventional raiseboring with no need to modify the drive assembly. The main gearbox features two float boxes to easily switch from raise to boxhole mode. Two double-acting telescopic cylinders can exert equal thrust in both directions. The 53RH is cleverly compact yet powerful, granting it greater flexibility to tackle a variety of tough applications where workspace is restricted.
Technical specification Robbins 53RH C