JSZ Type Hydraulic Drilling Jar
Specifications
hydraulic drilling jar:It integrates the up jarring with the down jarring
hydraulic drilling jar
1.It belongs to the integral drilling jar. Up jar is designed on hydromechanical principle and has different tonnages by changing the raising speed.
2.The action of down jarring is just as a free falling body and the jarring impact is based on the drilling tool’s weight above the drilling jar.
Model |
O.D. mm |
I.D.mm |
Connection api |
Closed overall length mm |
Working torque kn·m |
Max.tensile load MN |
Max. jar load MN |
JSZ121 |
121 |
50 |
NC38 |
5757 |
13 |
1400 |
300 |
JSZ159 |
159 |
57 |
NC50 |
6435 |
15 |
2000 |
700 |
JSZ178 |
178 |
60 |
NC50 |
6425 |
15 |
2000 |
700 |
JSZ203 |
203 |
70 |
6 5/8REG |
6646 |
18 |
2300 |
800 |
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