Products > Drilling Equipment
Surface Bumper Jar Type DJ
Product Number: KW-DE-35 It can be only used on drill platform, producing the downward jarring force.
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KINGWELL Surface Bumper Jar Type DJ
Surface Bumper Jar Type DJ can be only used on drill platform, producing the downward jarring force. The jarring tonnage should be adjusted momentarily on drill stand for reliable
property and usableness. The accidents for key-seating stuck, necked-in stuck and sucking stuck can be handled effectively. It can be mounted on drill string as to realize the jarring operation
when accident happened.
KINGWELL Surface Bumper Jar Type DJ Technical Data:
KINGWELL Surface Bumper Jar Type DJ Technical Data:
| Model |
O.D. mm(in) |
I.D. mm(in) |
Connecti on API |
Max. Jarring Force kN |
Max working Load kN(lbf) |
Tensie Yield Strength kN(lbf) |
Max.Worki ng Torgue kN·m(lbf·ft) |
Torsional Yield Strength kN·m(lbf·ft) |
Max. Stroke mm |
length mm |
| DJ46 |
121 (4-3/4) |
31.8 (1-1/4) |
NC38 |
400 (90000) |
1000 (225000) |
1950 (438000) |
15 (11000) |
27 (20000) |
1800 (70-7/8) |
3395 (133-11/16) |
| DJ159 |
159 (5-1/4) |
50.8 (2) |
NC50 |
600 (135000) |
1600 (360000) |
2700 (600000) |
25 (18000) |
65 (48000) |
1223 (48-1/8) |
3030 (119-5/16) |
| DJ70Ⅱ |
178 (7) |
50.8 (2) |
NC50 |
700 (160000) |
2400 (540000) |
4650 (1050000) |
30 (22000) |
80 (59000) |
1222 (48-1/8) |
3030 (119-5/16) |
| DJ80 |
203 (8) |
50.8 (2) |
6 5/8REG |
800 (180000) |
2800 (630000) |
6100 (1370000) |
35 (26000) |
145 (100000) |
1200 (47-1/4) |
3248 (127-7/8) |
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