Table 3 The looper geometry main data
From: Looper and tension control in hot strip finishing mills based on different control approaches
Variable | Symbol | Value | Unit |
|---|---|---|---|
Looper roll diameter | r | 240 | mm |
Looper arm length | l | 547 | mm |
Distance between mill stands | L | 5900 | mm |
Distance between the pivot point and upstream stand | a | 2420 | mm |
Pivot point distance from the pass line | d | 221 | mm |
Looper inertial momentum to the hydraulic actuator | J | 250 | Kgm2 |
Operating position | θ | 25 ° | degree |
Looper roller weight | M | 500 | kg |