Powerful, smart skin pass mill runs at Shenglong 2,250mm rolling line

CISDI has built a powerful, smart skin pass mill at Shenglong Metallurgical Co’s 2,250mm hot rolling line in China’s Guangxi Province.

It is the second of its kind at Shenglong. The first was created for the plant’s 1,780mm line. 

A host of CISDI’s core tech and equipment has been applied, including the high-rigidity skin pass mill, a two-jaw coiler, a guiding unit with strip’s head clamp, a high-tensile strip pre-bend forming preparation station, a dedusting system for deep-bend and brush rolls, an automatic control system and a process model. 

Standout achievements:

·      Dividing line and skin pass mill: compact, highly efficient 

·      Inlet’s coil preparation station: resistant to strip head bending and able to cut off irregular heads and bends, resulted in a higher strip threading efficiency

·      Automatic aligning unit: ensuring inlet’s coil car transports the coil onto the line’s centre with accurately-aligned width and height

·      Central position control system (CPC): ensuring the outlet’s final coil product travels along the centre of the line

·      Edge position control system (EPC): ensuring good shape formation of the final coil product

·      Powerful SPM: ensuring the required shape quality is achieved for thin specifications

·      Automatic surface inspection unit: replaces manual inspections 

·      Drive system: AC drives for the entire dividing line and SPM 

·      Process automation system: performs the pre-setting and collection of production parameters, recording of production data, roll management and coil parameter’s editing and modification. 

Shenglong 2,250mm line’s operational SPM, with EPC-based construction by CISDI