Reducing
Mill Stand
The hollow billet reducing mills and stretch-reducing rolling mills are
important hot-rolled seamless steel pipe manufacturing equipments. The steel tubes are passed through the three-roll internal driven hollow billet
reducing mills, their outer diameters can be reduced to meet the specifications. Hollow pipe billets
from the reducing mills will be processed by the rolling mills.
After processed by the rolling mills, the tubes are passed through the three-roll external driven
stretch-reducing rolling mills. The stretch-reducing mills can produce different size
hot-rolled finished steel tubes such as structural pipes, pressure pipes,
high-grade steel tubes, casing tubes, and drill pipes.
Reducing Mill Stand Technical Parameters
Model |
Hollow Billet Reducing
Mill Stand
|
Stretch-Reducing
Rolling Mill Stand |
Roll Diameter (mm) |
500 |
330 |
Rack Space (mm) |
460 |
310 |
Max Rolling
Force (KN) |
350 |
180 |
Max Rolling
Torque (Nm) |
60000 |
25000 |
Max Tube
Diameter (mm) |
224 |
196 |
Min Finished
Tube Diameter (mm) |
140 |
21.6 |
Max Finished
Tube Diameter (mm) |
- |
196.46 |
Tube Wall
Thickness (mm) |
43.5 |
3 - 22 |
Feed Speed (m/s) |
1.5 (max) |
1.0 - 3.0 |
Output Speed (m/s) |
- |
16 (max) |
|