Automatic Hydraulic AGC Reversible Cold Rolling Mill Machines
Hydraulic AGC rolling mill is popular and advanced in high precision high speed cold rolling metallurgical industry
Hydraulic press down or up system cold rolling mill Advantages:
- Small inertia, fast reaction and high sensitivity guarantee high precision rolling, thickness deviation can be controlled within 1% and increase the percentage of quality strip.
- hydraulic system fast and precise response can effectively remove the interference of frequently periodic change of roll gap caused by roll eccentricity
- Collect , Record and Display Rolling Process parameters including faults. Good HMI Dialogue.
- Rolling speed can be very high, like 240m/min, 480m/min, 600m/min.
- Hydraulic AGC high precision is especially obvious on medium and large width rolling mill.
Characters:
- Hydraulic AGC press-up system with automatic control, including hydraulic press-up cylinders, AGC control system, hydraulic station, thickness gauges, with functions of constant roller clearance position control, constant pressure control and automatic tilt adjusting control.
- CPU computer automatic control system
- HIM touch screen for dynamic display, rolling parameters setting, breakdown alarms and report printing.
- Digital DC or frequency AC drive
- Drive middle rollers (separately drive upper middle roller and lower middle roller.
- rollers cooling control divided in five zones , emusified water flow control
- work roller positive/negative bending control
- Presetting of middle roller transfer and middle roller positive bending control
- zero setting of rolling centerline by wedge.
- work rollers and middle rollers fast changing equipment
- automatic adjustment of rolling speed and tension
- Protection measures in case of strip break, accidents alarms and emergency stop.
- oil gas lubrication for work rollers, middle rollers and backup rollers.
- Roller bearings for backup rollers
- X-ray thickness gauge
- Rolling process linkage and defect alarms controlled by PLC
- The presetting of rolling process, the inspection, display and alarm of rolling process parameters and critical machine parameters
850 hydraulic AGC 6 High Reversible Cold Rolling Mill Line.
steel material | pickled clean carbon steel HR coils, cold rolled and annealed, edge trimmed or not |
Incoming coil strip | 500-750mm x 0.8-2.0mm |
Incoming coils | 508mm ID, 1900mm OD, 16T |
Cold rolled finished SS coil strip | 500-750 x 0.12-0.5mm |
Reverse Rolling mill parameters |
Rolling mill speed | 0-300- 600m/min, dual speeds |
Rolling force | Max 7000KN |
Recoiling tension | Up to 70KN |
Work roller, middle roller spec. | Ф185 /320x 850mm |
Backup roller spec. | Ф760 x 820mm |
Main motor power | 630KW |
Recoil motor power | 250KW |
Electric control | Hydraulic AGC, Siemens RA80 DC Drivers, PLC, X-ray Thickness Gauge system |
Liquid conditions | Thin oil lubrication for gearboxes, oil gas lubrication for bearing seats, hydraulic stations, rolling process coolant system |
Automatic roller changing | Hydraulic motor and cylinder drive, to realize automatic roller change |
Work process:
16T Uncoiler, pinch feeder and 5 roller straightener, 1st Recoiler, 6 Hi Hydraulic AGC Reversible Mill, 2nd Recoiler.

