group nameDownhole Tools
Min Order1 piece
modelDHJ
update timeMon, 08 Apr 2013 00:26:59 GMT
Processing Type Casting
Machine Type Drilling Equipment
Type shock absorber
Use Well Drilling
Certification API
Min Order1 piece
MECHANICAL–HYDRAULIC SHOCK ABSORBER
Mechanical and hydraulic shock absorber type DHJ is a new type two-function shock absorber. It absorb the pulsate and shock from drill tools by compressing spring and si oil to store the energy. This shock absorber have advantages of well maintainable, bears high load and long usage life.
Model | DHJ121 | DHJ159 | DHJ178 | DHJ203 |
O.D. mm | 121 | 159 | 178 | 203 |
I.D. mm | 38 | 50.8 | 57 | 71.4 |
Max. stroke mm | 100 | 120 | 120 | 140 |
Max.working drill pressure mm | 40 | 60 | 60 | 70 |
Connection API | 3 1/2REG | NC46 | NC50 | 6 5/8REG |
Over length of pulling off mm | 3400 | 4210 | 4210 | 4700 |
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