Closed Bottom Jar

Products Introduce

Introduction:

The is a mechanical downhole jar used for fishing operations, capable of performing downward jarring only. its working chamber is filled with wear-resistant hydraulic oil. The tool is simple to operate, delivers powerful and stable impact force, and offers a long working stroke that can be customized. It enables rapid and effective resolution of stuck pipe incidents, such as drill string jamming or obstruction, during fishing and coring operations.

Features and Benefits:

★ Purely mechanical downward jarring for powerful impact and quick freeing of stuck pipe.

★ Long and customizable working stroke for diverse operational needs.

★ Wear-resistant hydraulic oil-filled chamber for stable and durable performance.


Technical Specifications

O.D.

mm

I.D.

mm

Connection

Max working

Load

kN

Tensie Yield

kN

Max.Working

Torque

kN·m

Torsional Yield

kN·m

Stroke

mm

Length

mm

73

20

2 3/8TBG

300

500

2.6

4.5

268

2105

89

28

NC26

450

750

3.5

7

268

2105

95

32

NC26

600

1000

4

8

266

2103

105

32

NC31

1362

2044

11.5

20

400

2685

108

32

NC31

767

1151

5

20

268

2105

114

38

2 7/8REG

1243

1866

13

25

268

2100

121

38

NC38

1100

1950

13

27

405

2690

159

50

NC50

1600

2700

25

65

466

3229

178

70

NC50

2400

4650

30

80

470

3422

203

78

6 5/8REG

2800

4896

35

145

462

3414