SUS Stainless Steel Silicon Steel AGC 18High Reversing Cold Rolling Mill (950)
Comparison with 6High cold mill:
6High cold mill is very capable of rolling plain carbon steel, low alloy steel, single head rolling speed can be up to over 1000m/min, some rolling plants build tandem 6hi mill to make big scale cold rolled steel coils. But, 6hi cold mill is not suitable for wide stainless steel coil rolling, because six rollers of 6hi mill is in one vertical line, work roller needs big enough diameter to keep enough rigidity, but it is hard for big work rollers to roll stainless steel sheets like 200, 300 series. Therefore, it is available way to decrease work roller diameter to small enough to press hard metal like stainless steel sheet and meanwhile install side rollers and back support to stop work rollers from bending, 18hi mill is created and very successful in rolling stainless steel sheet especially rough rolling stage.
Characters of 18Hi Mill:
18Hi reversible cold mill suitable for SUS200, 300, 400 stainless steel sheet rolling, with high productivity, good flatness, thickness precision and good surface 2B, 2D CR product.
- Wide thin sheet
- less rolling passes and time；
- big thickness reduction without intermediate annealing；
- precise thickness；
- good sheet flatness；
- Surface can be 2B, 2D；
- Better Rolling stand in geometry；
- work roller side push adjusting is stable and reliable；
- fast press down speed；
- big control capacity；
- Middle roller positive negative bending；
- middle roller left-right transfer to improve steel strip edge quality；
- fast roller change to shorten middle rollers and work rollers changing time, only 8mins.
- automatic rolling passline adjusting system to adapt big roller diameter change
Rollers of 950 18High Cold Mill:
| Work Roller, | Φ110×1020mm, |
| Middle roller | Φ240×1020mm |
| Backup roller | Φ760×950mm |
| Bearing lubrication: | Oil gas for work rollers and middle rollers |
| Side Middle Rollers | Φ90×1000mm 9Cr2Mo, |
| Backing bearing | Φ80mm |
| Backing support | One side mechanic, one side hydraulic |
| Backup rollers balance: | Hydraulic |
| Rollers changing | Work rollers manual, other rollers hydraulic |
| Rolling passline: | +900mm, inclined wedge hydraulic |
Hydraulic AGC system:
| Hydraulic AGC system | composed of AGC system, electric control and hydraulic system |
| Press down/up Servo hydraulic cylinder | Single piston cylinder Φ750mm, 2pcs |
| Stroke of AGC cylinder: | about 70mm |
| Max pressing force of each cylinder: | 750T |
| Work pressure | 18MPa |
| Max systematic pressure | 25MPa |
| Hydraulic flow | 80L/min |
| Filtering precision: | 3μm |
| Press speed | ≥4mm/s |
850 18High Hydraulic AGC Reversing Cold rolling Mill.
| Steel coil parameters |
| Stainless steel material | SUS201, SUS403, SUS300 |
| Incoming SS coil strip | 650-900mm x 0.6-1.0mm |
| Incoming SS coils | 508mm ID, 2000mm OD, 15T |
| Cold rolled finished SS coil strip | 650-900 x 0.08-0.4mm |
| Reverse Rolling mill parameters |
| Rolling mill speed | Max 400m/min |
| Rolling force | Max 15000KN |
| Recoiling tension | Up to 175KN |
| Work roller, middle roller spec. | Ф110 /240 x 1020mm |
| Backup roller spec. | Ф760 x 950mm |
| Main motor power | 770KW x 2 |
| Recoil motor power | 590KW x 2 |
| 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 |
Product Tags:
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SUS High Reversing Cold Rolling Mill Stainless Steel Silicon Steel AGC 18High Images
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