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The pre-existence of Tianhe Petroleum Machinery Joint-Stock Co., Ltd
The pre-existence of Tianhe Petroleum Machinery Joint-Stock Co., Ltd > Product Catalog > Surface Bumper Jar
Product Catalog

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The pre-existence of Tianhe Petroleum Machinery Joint-Stock Co., Ltd

City : Mudanjiang

Province/State : Heilongjiang

Country/Region : China

Telephone: 86-0453-655 8966

 

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sophiabai88@163.com

sophiabai88@163.com

 

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Surface Bumper Jar

Surface Bumper Jar

Surface Bumper Jar

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Detailed Product Description

The DJ type surface bumper jar is a kind of stuck freeing tool for surface down jarring . it is connected with drill stem section, the jarring force is adjusted n surface . Owning some feature such as big jarring force ,easy operation ,make it especially suitable for stuck freeing of keyboard.
 
 
Type
Parameter
DJ46B(4 3/4)
 
DJ70B(7)
 
O.D. (mm)
121(43/4”)
178(7”)
Max.jarring force MN (tf)
0.4(41+/-5)
0.8(80+/-5)
 Sealing pressure Mpa
20(196)
20(196)
Stroke(mm)
1500( 59)
1220(48)
ID
32(11/4)
51(2”)
Threads API
NC38(31/2”)
NC50(41/2”)
Closed length (mm)
3155(124.2”)
3090(121.8”)
  

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