Special Junk Mill with Spiral Hardfacing
The 8HJM special junk mill is designed for milling metal debris, packer plugs, hydraulic fracturing (frac) ports, and cement bridges during workover and remediation operations in oil, gas, and geological exploration wells.
Characteristics:
Designation
8SJM-56
8SJM-57
8SJM-68
8SJM-70
8SJM-85
8SJM-86
8SJM-95
OD, mm
56
57
68
70
85
86
95
Length, mm
455
455
455
455
515
515
515
Thickness of working surface, mm
15
15
15
15
15
15
15
Rotary speed, rpm, max
175
175
175
175
175
175
175
Axial load, kN
5...20
5...20
5...20
5...20
5...20
5...20
5...20
Thread*
Z-45
Z-45
Z-45
Z-45
Z-65
Z-66
Z-66
Weight, kg
6,4
6,5
8,8
9,0
18,2
18,5
19,8
