en
cn 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
pl 
hu 
Super-strength spring steel is applied to centralize casing in wellbore,and improve cementing quality.
Super-strength spring steel is applied to centralize casing in wellbore,and improve cementing quality.
Features
1、Every attachment is pressed into shape by moulding instead of welding and rivet.
2、3-section structure for easy transport.
3、Starting force and restoring force conform to API standards.
4、Easy-and-convenient to use.
5、Alternative turbulence plates can effectively improve displacement efficiency.
Specification | Number of slice | Max OD （㎜） | ID （㎜） | Length （㎜） |
YDFJ—41/2"×6" | 4 | 160 | 116 | 450/575 |
YDFJ—4 1/2"×6 1/4" | 4 | 167 | 116 | 450/575 |
YDFJ—4 1/2"×7 7/8" | 4 | 210 | 116 | 450/575 |
YDFJ—4 1/2"×8 1/2" | 4 | 230 | 116 | 450/575 |
YDFJ—5"×6" | 4 | 160 | 128 | 450/540 |
YDFJ—5"×6 3/4" | 4 | 180 | 128 | 450/575 |
YDFJ—5"×7 7/8" | 4 | 210 | 128 | 450/575 |
YDFJ—5 1/2"×7 7/8" | 5 | 210 | 140 | 450/575 |
YDFJ—5 1/2"×8 1/2" | 5 | 216/245 | 140 | 450/575 |
YDFJ—5 1/2"×8 3/4" | 5 | 222/250 | 140 | 450/575 |
YDFJ—5 1/2"×9 7/8" | 5 | 251/264 | 140 | 450/575 |
YDFJ—51/2"×91/2" | 5 | 242/264 | 140 | 450/575 |
YDFJ—7"×8 1/2" | 6 | 216/230 | 179 | 450/575 |
YDFJ—7"×8 3/4" | 6 | 222/233 | 179 | 450/575 |
YDFJ—7"×9 1/2" | 6 | 242/264 | 179 | 450/575 |
YDFJ—7"×9 7/8" | 6 | 251/264 | 179 | 550/650 |
YDFJ—9 5/8"×12 1/4" | 8 | 346 | 245 | 550/650 |
YDFJ—9 5/8"×13 3/8" | 8 | 346/352 | 245 | 550/650 |
YDFJ—9 5/8"×12 13/16" | 8 | 378 | 245 | 550/650 |
YDFJ—10 3/4"×15 1/2" | 9 | 405 | 275 | 550/650 |
YDFJ—φ273.05×φ374 | 9 | 374 | 275 | 550/650 |
YDFJ—13 3/8"×17 1/2" | 10 | 440/446 | 342 | 550/650 |
YDFJ—13 5/8"×17 1/2" | 11 | 440/466 | 342 | 550/650 |
YDFJ—20"×26" | 17 | 696 | 510 | 550/610/650 |
Call us on: 
Email Us: 
NO. 1192, Xinhu Street, Dezhou City, Shandong, China 
