850mm 4-Hi Cold Rolling Mill
1. Equipment Overview
This equipment is an 850mm 4-Hi Cold Rolling Mill, mainly designed for cold rolling stainless steel strips. It is suitable for processing SS201, SS202 and SS204 stainless steel grades. The mill adopts a four-high rolling configuration consisting of work rolls and backup rolls, meeting the production requirements of stainless steel strips with different thickness specifications.
The mill features a maximum designed rolling width of 780mm, a maximum entry thickness of 2.5mm, and a minimum finished thickness of 0.25mm. The maximum rolling speed reaches 300m/min, with a maximum rolling force of 16,000kN. It adopts an AGC screw-down system and a solid drum coiling method, making it suitable for continuous stainless steel cold rolling operations.
2. Main Technical Specifications
Item | Technical Specifications |
|---|---|
Equipment Name | 850mm 4-Hi Cold Rolling Mill |
Mill Type | 4-Hi Cold Rolling Mill |
Rolling Material | SS201, SS202, SS204 |
Number of Rolls | 4 |
Max. Rolling Width | 780 mm |
Max. Entry Thickness | 2.5 mm |
Min. Finished Thickness | 0.25 mm |
Max. Rolling Speed | 300 m/min |
Max. Rolling Force | 16,000 kN |
Screw-down System | AGC |
Coiling Method | Solid Drum |
3. Main Equipment Configuration
(1) Main Drive System
The mill is equipped with two Z560-4A main motors, each rated at 750kW, with a rotational speed of 413/1200rpm. These motors provide the driving power required for stainless steel cold rolling operations.
(2) Coiling Drive System
The coiling system is equipped with two Z560-4A coiler motors, each rated at 750kW, providing the driving power required for strip coiling operations.
(3) Roll System
The mill adopts a four-high rolling configuration consisting of work rolls and backup rolls. The main roll specifications are as follows:
Component | Dimensions |
|---|---|
Work Roll | Φ165 × 900 mm |
Backup Roll | Φ730 × 850 mm |
The work rolls directly perform the rolling process, while the backup rolls provide support to the work rolls, ensuring the required support during strip rolling operations.
(4) Electrical Control System
The equipment is equipped with a SIEMENS electrical control system, which is reported to be in good condition according to the original equipment specifications. The mill also adopts an AGC screw-down system to support thickness control during the rolling process.
4. Spare Parts & Refurbishment Services
The equipment comes with relevant rolls and auxiliary spare parts. Disassembly, refurbishment and maintenance services are also available according to customer requirements.
Item | Quantity / Service Description |
|---|---|
Backup Rolls with Chocks | 1 Pair |
Sleeves | 4 pcs |
Work Rolls with Chocks | 1 Pair |
Disassembly Service | Available; cost to be confirmed |
Equipment Refurbishment & Maintenance | Available; cost to be confirmed |
5. Manufacturing Information
Item | Details |
|---|---|
Equipment Manufacturer | Wuye |
Manufacturing Year | 2013 |
Electrical Control System | SIEMENS |
Electrical Control Condition | In Good Condition |
