Self-weight gripper

The self-weight gripper relies on the self-weight of the drill rod to grip the drill string, which is more suitable for deep hole drilling. The self-weight gripper standard has JSZ-114 and JSZ-146. The JSZ-114 dead weight holder is suitable for drill casings with pipe body diameter below 114mm. The JSZ-146 dead weight holder is a weighted deep hole product and is suitable for drill casings with pipe body diameter below 146mm.

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Self-weight gripper

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Product Details

Self-weight gripper standard and parameter performance
NO.	Standard	Name	Clamping range (mm)
1	JSZ-114	Self-weight gripper	53-114
2	JSZ-146	Self-weight gripper	53-146

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