| 1 | High Precision Rolling Capability | The minimum finished thickness can reach 0.24mm, meeting the precision rolling requirements for high-end stainless steel strips (e.g., SUS 201). This precision is suitable for high-value industries such as electronic components, precision medical devices, decorative stainless steel strips, and food-grade stainless steel. Compared to conventional rolling mills with a thickness limit of 0.3-0.5mm, this equipment has a clear technical advantage in thin-strip rolling, helping producers expand into high-profit thin-strip markets. |
| 2 | Wide Rolling Width | The maximum rolling width is 690mm, which has already been fully utilized by the previous owner, indicating that the equipment's capacity is well leveraged. The 690mm width is suitable for medium-width stainless steel strip production, meeting the width requirements of industries such as kitchenware, hardware stamping, and architectural decoration. The equipment has shown no significant issues with strip wandering or poor shape during actual use, proving the rationality and reliability of its roll design and tension control system. |
| 3 | Powerful Main Motor System | The main motor is rated at 750kW, and both the recoiler and uncoiler motors are rated at 500kW each. These three high-power motors are independently controlled, ensuring stable operation under high-load, continuous rolling conditions, resulting in high production efficiency. The motor's rated voltage and speed parameters are compatible with mainstream industrial power grids, making it easy for buyers to connect to existing power systems. The high-power configuration allows the equipment to process 2.5mm thick stainless steel feedstock with multiple high-efficiency rolling passes, delivering substantial daily output and a short return on investment cycle. |
| 4 | Optimized 4-Hi Roll Configuration | The working roller size is Φ150×780mm, and the backup roller size is Φ640×750mm. The 4-Hi structure is a classic design in the cold rolling field, with key advantages including: large-diameter backup rollers providing sufficient rigidity to minimize elastic deformation under rolling force, ensuring strip shape accuracy; and small-diameter working rollers reducing contact area and rolling force requirements, making thin-strip rolling easier to achieve. This structure also facilitates quick working roller changes, reducing downtime and improving overall equipment effectiveness. |
| 5 | Complete and Usable Electric Control System | The electric control system is manufactured by Parker, a well-known brand in global industrial automation and hydraulic control, known for reliable product quality. The system is complete and in good condition, with no missing key components, including PLC control cabinets, variable frequency drives, operator stations, sensors, etc. Buyers can proceed directly with commissioning and trial production without additional electrical system restoration costs, significantly reducing secondary investment risks and shortening the pre-production preparation period. |
| 6 | Disassembly and Refurbishment Services Available | The supplier offers disassembly, refurbishment, and maintenance services (costs to be confirmed separately). Disassembly services include complete machine disassembly, component labeling, rust-preventive packaging, and loading for shipment. Refurbishment services include roll grinding, bearing inspection and replacement, seal replacement, hydraulic system cleaning, electrical system testing, and frame cleaning and painting. For international buyers or those requiring long-distance relocation, one-stop services significantly reduce project management difficulty, communication costs, and logistics risks. |
| 7 | Reliable Equipment Source with Clear History | The equipment was manufactured by Weisheng in 2010 and taken out of service in February 2026. The equipment has operated stably for over 15 years without any major failures. The reason for decommissioning is plant production line upgrades, not equipment failure, so the core components remain in good condition. A clear equipment history helps buyers with condition assessment and remaining life prediction, reducing uncertainty risks associated with purchasing used equipment and providing a reliable basis for investment decisions. |
| 8 | Complete Spare Parts List Included | A list of spare parts (excluding original factory parts) is provided, clearly specifying the types of spare parts available, including but not limited to spare working rollers, bearings, seals, hydraulic fittings, and electrical modules. A complete spare parts list facilitates daily maintenance and troubleshooting, reducing downtime caused by spare parts procurement lead times. For buyers located far from spare parts supply markets or in overseas regions, the included spare parts have high practical value and emergency support significance. |
| 9 | Performance Verified by Actual Rolling Data | The previous owner achieved a maximum input thickness of 2.5mm, a minimum finished thickness of 0.24mm, and an actual rolling speed of 200 m/min. The reduction ratio from input to finished thickness exceeds 10:1, indicating strong total reduction capacity, allowing high reduction per pass, reducing the number of passes required, and increasing single-machine output. The rolling speed of 200 m/min is in the upper-medium range for similar 4-Hi 750mm cold rolling mills, balancing production efficiency with rolling stability. All data comes from actual production records rather than theoretical design values, providing high reference value and credibility. |
| 10 | Reliable Reducer and Coiling Mechanism | The left and right recoiler reducers are Model 630, and the main reducer is Model 710. The reducers feature hardened gear surfaces for high load capacity, smooth transmission, low noise, and long service life. The coiling method uses a solid drum, which is simple, durable, and has a lower failure rate and lower maintenance costs compared to collapsible drums, especially suitable for production scenarios that do not require frequent drum diameter changes. The matching of the recoiler/uncoiler motors with the reducers is well-designed, maintaining stable tension during acceleration and deceleration, reducing the risk of strip breakage and surface scratching, and improving product yield. |
| 11 | Electric Screw-Down System | The equipment uses an electric screw-down system. The advantages of electric screw-down are: simple structure, direct response, low maintenance cost, and fewer failure points. For small to medium-scale cold rolling production lines, electric screw-down is sufficient for daily production needs without the complexity of hydraulic servo systems and their supporting oil supplies, valve groups, and sensors. Additionally, electric screw-down allows for easy manual intervention and adjustment by operators, making it suitable for quick process changes in multi-variety, small-batch production modes, offering good operational flexibility. |
| 12 | Targeted Material Design | The equipment is designed for rolling SUS 201 (austenitic stainless steel). SUS 201 is a common material in cold rolling, widely used in civilian and industrial fields such as kitchenware, decorative tubes, hardware stamping, and architectural decoration. The equipment has been optimized for the processing characteristics of this material, including rolling force settings, tension control, lubrication system, and roll profile design. If the buyer primarily produces SUS 201, they can directly inherit the process parameters and experience from the original user, shortening the trial production period and achieving stable mass production quickly. |
| 13 | Recent Decommissioning, Good Condition | The equipment was taken out of production in February 2026, less than 4 months ago. Short-term decommissioning means the equipment has not been exposed to humid or dusty environments for extended periods. Electrical components have not aged due to prolonged idleness, and mechanical components have not rusted or seized due to long-term static conditions. Compared to used equipment that has been idle for many years, this equipment is in significantly better condition, with a lower probability of unexpected failures after commissioning, a shorter debugging and recovery period, and faster investment return for buyers. |
| 14 | Well-Matched Working and Backup Roll Specifications | The ratio of working roller diameter (150mm) to backup roller diameter (640mm) is approximately 1:4.27, which is a reasonable range for 4-Hi cold rolling mills. This reasonable roll diameter ratio ensures that the working rollers have sufficient strength to withstand rolling forces while maintaining enough elastic bending adjustment capability. The backup rollers provide overall rigidity, reducing the impact of roll deflection on strip shape. This design balances rolling capacity with shape control capability, making it suitable for batch production of medium to thin stainless steel products. |
