Core barrel-Double shell

Core barrel-Double shell


Dia:520-3000mm

Materials: Q355B

Kelly box: 130/150/200/250mm

Wear protection: Hard facing or wear strips

Application:Backfill,strength up to medium rock, gravel, boudler.

Features:

Shell height: as customers request, the space between the double shell based on actually needs.

Teeth: B47K22 or B40K12 or upon request.

Wear protection: Hard facing-Wear strip-Betek Stungstuds upon request

Structure: Inner shell drilling first, then the outer shell cutting ring with rock bits drilling to release rock pressure.


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Parameters


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Workshop & Producing line


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Welding details


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Quality control


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Package & Delivery


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What we suppply?


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