Main Products: Petroleum Equipments
HOT!!! Hydraulic Shock Sub Type YJ
USD $2,000 - $3,500,000 /Set
Min.Order:1 Set
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Sinotai Petroleum Equipment Co., Ltd.
Credit Member 4 years 
Business Type: Trading Company
Shandong ChinaMain Products: Petroleum EquipmentsProduct Details
Hydraulic Shock Sub Type YJ
The Hydraulic Shock Sub type YJ is fully hydraulic and is used for reducing vibrations caused by hard formation drilling and keeping the drill bit firmly on the bottom, so that it helps to reduce drill string connection fatigue and prolong drill string life.
Type | O.D. mm (in.) | Water Hole mm (in.) | Max. Working Stroke mm (in.)
| Connection API | Working Temperature 0C |
Max. Drilling Pressure kN (Lbf) |
Max. Tensile Load kN (Lbf) | Max. Working Torque kN· m (Lbf· m) |
YJ121 | 121 (4 3/4) | 38 (1 1/2) | 100 (3 15/16) | 3 1/2REG | -40~+150 | 260 (58500) | 980 (220500) | 10 (2250) |
YJ178Ⅲ | 178 (7) | 57 (2 1/4) | 125 (4 15/16) | NC50 | -40~+150 | 390 (87750) | 1470 (330750) | 14.7 (3307.5) |
YJ203Ⅲ | 203 (8) | 68 (2 11/16) | 140 (5 1/2) | 6 5/8REG | -40~+150 | 490 (110250) | 1960 (441000) | 19.6 (4410) |
YJ229Ⅲ | 229 (9) | 70 (2 3/4) | 140 (5 1/2) | 7 5/8REG | -40~+150 | 540 (121500) | 1960 (441000) | 19.6 (4410) |
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