QYSZ III Double Acting Hydraulic Drilling Jar
QYSZIII New Double Acting Hydraulic Drilling Jar is a new hydraulic drilling jar with locking mechanism developed on the basis of the structure of QYSZII double-acting hydraulic drilling jar. Besides the advantages of QYSZII type, it also has the following advantages.
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1.The mechanical locking mechanism prevents unnecessary wear of the internal parts during the working process, and improves the working life.
2.The mechanical locking mechanism is functional safety and reliability, which is made by special process. The friction resistance is small, and the locking force is linear stability.
3.The locking mechanism can avoid the failure jarring caused by misoperation when connect simple root to the drill string or contact the hole bottom.
