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Specifications
1. SJ type double way bumper2.A kind of double-way shock absorbing tool
Function:
1.The SJ type double way bumper is a kind of double-way shock absorbing tool which is used to simultaneously slow down or eliminate the vertically or horizontally shock from drill string.
2.It can reduce the damage due to shocking to drill bit, drilling tool and surface drilling tool so that the purpose of raising drilling speed and of reducing drilling cost shall be reached.
Detail Specification:
Technical specification and parameters for SJ type Double-way Shock Absorber | |||||||||
Type | O.D. | I.D. | Max. stroke | Ambient (°C) | Max. | Max.bit | Tensile load | Pull-down | Conn. |
SJ121B | 121 | 38 | 120 | -40~150 | 10 | 200 | 1000 | 4490 | 3 1/2"REG |
SJ160B | 160 | 45 | 120 | -40~150 | 15 | 340 | 1500 | 5150 | NC46 |
SJ178B | 178 | 57 | 120 | -40~150 | 15 | 400 | 1500 | 5590 | NC50 |
SJ203B | 203 | 64 | 120 | -40~150 | 20 | 480 | 1960 | 5800 | 6 5/8"REG |
SJ229B | 229 | 71 | 120 | -40~150 | 20 | 540 | 1960 | 5630 | 7 5/8"REG |
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