After rolling for several courses on cold rolling mill, the Al. Coils should be trimmed to remove the crackers on both edges of strips.Line Specification material 1000, 3000, 5000, 8000 series entry thickness(mm) 0.3 -3.5 coil width (mm) 950-2100 (Max ) o.d. of coil (mm) Φ2500 (max ) entry weight (kg) 24000 (max) line speed (m/min) 200-400 cleaning effect(mg/m 2 ) Max 30-20 cleaning method