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.
Specifications
|
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) |