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Sandvik Mining and Rock Technology

Upgrades & Engineered solutions

Rear stinger extension for Sandvik DL331

In order to ensure correct anchoring in up-hole drilling in larger cross sections, Sandvik has developed the Rear Stinger Extension for DL331.

  • Description

    Correct anchoring of the feed is an essential factor to in obtaining acceptable hole quality and limited deviation.

    In order to ensure correct anchoring in up-hole drilling in larger cross sections, Sandvik has developed the Rear Stinger Extension for DL331.

    It increase the effective length of the feed with stingers by 1000mm. The extension is bolted on the rear stinger.

  • Advantages

    -Extend the rear stinger length by 1000mm. Allows correct anchoring in large cross sections.

  • Customer values

    -Insure correct anchoring in large sections that allow to obtain acceptable hole quality an limited deviation.

Product specifications

Application area
Productivity improvement
Underground drill rigs & Bolters

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