Tandem cold mill for carbon steel

This Tandem cold mill is used for continuous rolling of carbon steel strips with a minimum thickness of 0.5mm.

1. Use

This machine is continuous rolling mill, work roll drive, frame stiffness, roll system adopts special mill FCD bearing, suitable for wide plate continuous rolling, is the common equipment for rolling carbon steel.

2. Equipment composition and structural characteristics

This machine is a four-high continuous rolling mill, which is composed of pressing device, frame device, roll system part, balancing device, main drive, cardan shaft bracket, roll changing device, etc. Its main function is to roll strip to meet a certain thickness. Equipment composition, Feeding device, uncoiler, hydraulic shear, welding platform, feed tray type material storage loop, feed process platform, 1# frame, 2# frame, 3# frame, 4# frame, 5# frame, discharge process platform, hydraulic four pyramid coiler, ordinary hydraulic system, AGC hydraulic system, thin oil station, process lubrication station, electric control, thickness gauge, unit anchor bolt, etc.

3. Technical parameters

Rolling force: 600T

Transmission form: work roll drive

Feed size: 3x600mm

Finished product specification: 0.5x600mm

Frame end face: 350x420

Rolling speed: 250m/min

Work roller specification: φ195x700

Size of back-up roll: φ580x650

Main motor: Z500-4A 710KW

AGC down cylinder: φ460x70

Main reducer hard tooth surface ZLY560, ZDY560

Cross cardan axis: SWC235

Herringbone gear box: A=265mm, rare self-lubricating

Ordinary hydraulic working pressure: 10Mpa

Coiler: hydraulic tetrapyramid

AGC hydraulic working pressure: 18Mpa-21Mpa

Winding tension: 8T

Rolling mode: continuous rolling

Volume weight: 7.5T

Electric control: Controller Siemens 6R80, PLC Siemens

Winding reducer: homemade enhanced type

Winding motor: Z4-355-22 250KW