Casting Steel Spool Used In Copper Strip Rolling Mill Machine Of Non-ferrous Industry
GW Precision manufactures customized casting steel spools for non-ferrous metal rolling equipment. The representative product is a 35CrMoV centrifugal cast steel spool, specification 665 × 605 × 1900 mm. Common outer diameters include Ø665, Ø609, Ø588, Ø572, Ø565, Ø562, Ø560, Ø552, Ø540 and Ø482 mm, with lengths from 1000 mm to 3000 mm. The inner diameter is not limited and can be manufactured according to customer drawings and equipment requirements. Approximately 80% of GW Precision's machine tools are CNC equipment, supporting the machining of large customized components.
- GW Precision
- China，Luoyang
- Contractual Stipulation
- Anual Capacity of Steel Spool is 4000 pieces
- Information
Casting Steel Spool for Copper Strip Rolling Mill Machine
The 35CrMoV steel spool is designed for demanding applications in copper strip rolling mill machines and other non-ferrous metal processing equipment. 35CrMoV provides a combination of high strength, wear resistance and fatigue resistance. According to the supplied application data, the material can maintain high strength at approximately 500–600°C. Vanadium carbide (VC) and chromium carbide (Cr₇C₃) contribute to wear resistance, while good thermal conductivity and toughness help reduce the risk of thermal-stress cracking under repeated temperature changes.
Centrifugal Casting
GW Precision uses controlled smelting and casting technology for the casting steel spool. Production equipment is accurately inspected to help ensure reliable and consistent chemical composition. Centrifugal casting is used to improve structural compactness and mechanical-property uniformity while controlling the inner and outer surfaces against defects such as cracks, slag inclusions, pores and sand holes. This provides a stable foundation for subsequent heat treatment and precision machining.
Heat Treatment and Surface Strengthening
For specific mechanical-property requirements, the steel spool receives controlled heat treatment. The specified process is 850°C oil quenching + 550°C high-temperature tempering for 4 hours, with a target core hardness of HRC 28–32 to balance strength and toughness.
For higher surface wear resistance, ion nitriding can provide surface hardness of ≥HV900 with a penetration layer of 0.3–0.5 mm. Alternatively, laser quenching can selectively harden the contact surface to HRC55–60, with deformation below 0.03 mm.
Precision Machining and Inspection
GW Precision has approximately 80% CNC machine tools, improving its capacity for customized precision machining. Common outer diameters include Ø665, Ø609, Ø588, Ø572, Ø565, Ø562, Ø560, Ø552, Ø540 and Ø482 mm, with lengths from 1000 mm to 3000 mm. The inner diameter is not limited and can be manufactured according to customer drawings and equipment requirements. The representative specification is 665 × 605 × 1900 mm.
Inspection includes dimensional inspection and, where required, mechanical-property testing after heat treatment. A ring-belt dynamic balancing machine can provide 100% dynamic balancing testing for rotating steel spool products. Experienced packaging personnel and established packaging methods are also used to protect finished products during storage and transportation.
Through centrifugal casting, heat treatment, CNC precision machining and dynamic balancing inspection, GW Precision provides customized steel spool solutions for copper strip rolling mill machines. Material, dimensions, heat-treatment condition, surface strengthening and inspection requirements can be adjusted according to customer drawings and actual operating conditions.
