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SJ Type Double -Way Bumper (shock absorber)

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product description

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.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.

Thechnical specifications and parameters:

Type

O.D.
(mm)

I.D.
(mm)

Max.stroke
(mm)

Ambient
temperature
(°c)

Max.
torque
(KN.m)

Max.bit
weight
(KN)

Tensile load
(KN)

Pull-down
overallength
(mm)

Thread
conn.

SJ121B

121

38

120

-40~150

10

200

1000

5300

3  1/2"REG

SJ160B

160

45

120

-40~150

15

340

1500

5252

NC46

SJ178B

178

57

120

-40~150

15

400

1500

5350

NC50

SJ203B

203

64

120

-40~150

20

480

1960

5853

6  5/8"REG

SJ229B

229

71

120

-40~150

20

540

1960

5900

7  5/8"REG

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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