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J-PAK Crib

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J-PAKCribsSpecs

J-PAK Crib

J-PAK® Cribs are a standing support product that utilizes a custom made steel shell filled with a specialized cement. J-PAK is designed to slowly yield under rock load.

Features

• Available in corrugated (J-PAK I) or smooth (J-PAK II) steel shells
• Easily installed in various mine conditions
• Designed to slowly yield under rock load
• Available in 18–36" (457–914 mm) diameter steel shells

Advantages

• Replaces conventional timber cribs in longwall tailgates and bleeders
• Sustains peak capacity during yielding
• Stable and high yield performance
• Withstands lateral displacement


 

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