New down-the-hole drill system to combat over-drilling

Sandvik has developed the Centrex Pro, a new down-the-hole drilling system designed with Spiral Flush to protect against the impacts of over-drilling.

The Spiral Flush technology delivers crosswise flushing that does not create pressure against the ground, minimising overdrilling and risks of air escape.

Less water is lifted to the surface which helps alleviate the risk of disturbing marine deposits. The system’s back flush also reduces the risk of getting stuck in the hole.

Spiral grooves prolong the drill’s service life, and an increased penetration rate improves flushing capabilities. Added to this is the Guide Center that decreases the risk of hole deviation through straight collaring.

The system is suitable for drilled pile installation, slope drainage, anchoring, and stabilisation.

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