18 Years Factory 40 Cat Head - SJY Double-Acting Mechanical-Hydraulic Drilling Jar – LUQI
18 Years Factory 40 Cat Head - SJY Double-Acting Mechanical-Hydraulic Drilling Jar – LUQI Detail:
SJY double-acting mechanical-hydraulic drilling jar integrates upward jarring with downward jarring hydraulic drilling jar with mechanical interlocking. It can suit for all kinds of drilling operations, and landing into the well with drilling tools assembly when used. When the drilling tools are stuck, it can make drilling jar generate upward or downward jarring force through lifting and landing the drill strings, so it can release resistance and the stick by many time jarring, and recover normal drilling operation promptly. If adjust the release force, it can be adjusted any time on the spot.
We produce H2S resistance Jars, which adopt high quality import sulfur-resistance material.
Model |
OD mm(in) |
ID mm(in) |
Conn. API |
Max. Tensile Load (KN) |
Max. Upward Jarring Force (KN) |
Max. Downward Jarring Force (KN) |
Full Open Length (mm) |
SJY121 |
121(4 3/4) |
44.5(1 3/4) |
NC38 |
350 |
350 |
180 |
8950 |
SJY165 |
165(6 1/2) |
57(2 1/4) |
NC50 |
700 |
700 |
350 |
9260 |
SJY203 |
203(8) |
70(2 3/4) |
6 5/8REG |
1000 |
1000 |
500 |
9786 |
Product detail pictures:



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To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for 18 Years Factory 40 Cat Head - SJY Double-Acting Mechanical-Hydraulic Drilling Jar – LUQI , The product will supply to all over the world, such as: Costa Rica, Macedonia, Poland, We critically promise that we deliver all the customers with the best quality solutions, the most competitive prices and the most prompt delivery. We hope to win a resplendent future for customers and ourselves.

Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
