Rolling Speed 180m/Min Carbon Steel Ce 4hi Cold Rolling Mill
1. Product description
Cold rolling is a process by which metal is passed through rollers
at temperatures below its recrystallization temperatures. The metal
is compressed and squeezed, increasing the yield strength and
hardness of the metal. Cold rolling of metal strip is a special
segment within the metalworking industry.
2. Main function
φ160/φ620×800 4-HI Reversing Cold Rolling Mill is used for reversible rolling of high precision and good
performance plain carbon steel, driven by backup roller, with
coiling tension: T≤65 KN and max. rolling speed: v≤180 m / min.
.
3. Process flow: (for reference)
4. Equipment Composition:
4.1 Mechanical equipment:
| No. | Description | Unit | Qty. |
| 1 | Four-high main rolling mill | set | 1 |
| 2 | Electric screwdown device | set | 2 |
| 3 | Hydraulic balancing device | set | 1 |
| 4 | Universal shaft | pcs | 2 |
| 5 | Universal shaft bracket | set | 1 |
| 6 | Work roller changing rack | set | 1 |
| 7 | Hydraulic roller changing device of backup roller | set | 1 |
| 8 | Backup roller changing rack | set | 1 |
| 9 | Front/rear mill process platform | set | 2 |
| 10 | Hydraulic expansion recoiler | set | 2 |
| 11 | Discharge coil car | set | 2 |
| 12 | Foundation bolt | set | 1 |
4.2 Electric motor, electrical control:
| No. | Description | Unit | Qty. |
| 1 | Main motor | set | 1 |
| 2 | Recoiler motor | set | 2 |
| 3 | Screwdown motor | set | 2 |
| 4 | Electrical control | set | 1 |
4.3 Fluid equipment:
| No. | Description | Unit | Qty. |
| 1 | General hydraulic system (including valve stand) | set | 1 |
| 2 | Roller bending hydraulic station (including valve stand) | set | 1 |
| 3 | Thin oil lubrication station | set | 1 |
| 4 | Oil and gas lubrication system | set | 1 |
| 5 | Process lubrication system | set | 1 |
5. Technical Parameters (options):
Model No. Technical Parameters | 650 | 750 | 850 |
| Material | Carbon steel & low alloy steel | Carbon steel & low alloy steel | Carbon steel & low alloy steel |
| Material Thickness (mm) | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 |
| Material Width (mm) | 400-500 | 500-650 | 600-750 |
| Output Thickness (mm) | 0.18-0.5 | 0.18-0.5 | 0.18-0.5 |
| Rolling Force (KN) | 5500 | 6500 | 7500 |
| Backup Roller Size (mm) | Φ550×600 | Φ650×700 | Φ750×820 |
| Middle Roller Size (mm) | / | / | Φ300/Φ280×820 |
| Work Roller Size (mm) | Φ185/Φ165×650 | Φ205/Φ190×750 | Φ230/Φ205×850 |
| Drive Mode | By work roller | By work roller | By work roller |
| Main Motor | DC motor | DC motor | DC motor |
| Reducer | Combined gearbox | Combined gearbox | Combined gearbox |
| Uncoiler (optional size) | Φ508/Φ610×650 | Φ508/Φ610×750 | Φ610×850 |
| Recoiler (optional size) | Φ508×650 | Φ508×750 | Φ508×850 |
| Rolling Speed (m/min.) | 180-480 | 240-600 | 240-600 |
| Uncoiler Tension (KN) | 30 | 35 | 45 |
| Recoiler Tension (KN) | 10-70 | 10-80 | 10-90 |
| Screwdown Method | Mechanical/Hydraulic AGC | Mechanical/Hydraulic AGC | Mechanical/Hydraulic AGC |
Note: The above parameters are for reference only, it could be
manufactured according to customer's requirements.
6. Packaging
Machine will be fixed inside container by steel wire and special PET strap, in order to make sure all parts will not move during
transportation and avoid any kinds of damage of machine and
container.
7. Warranty term: 12 months (excluding easy-broken parts)
8. Our service and features:
8.1 Design: We have a matured technical team with rich experience to develop
and deisng the machines according to customer's demand and
requirements.
8.2 This is a very perfect and durable equipment. We have more than 10
years experiences.
8.3 This kind of machine has the best quality and the best price. It
has accurate measurement and easy operating.
8.4 We provide technical support (both before, during and after sales),
production, installation, commissioning and maintenance service to
all customers.
8.5 Our product has been exported to many regions and won high
reputation because of the high quality and reasonable price.
