Casting Steel Spool Of Aluminum Foil Mill Machine Tested By Dynamic Balancing Machine
GW Precision manufactures customized casting steel spools for aluminum foil, aluminum plate, stainless steel foil and strip rolling applications. This product uses ZG310-570 cast steel and has a specification of 565 × 505 × 1600 mm. As a rotating component, the steel spool requires controlled concentricity, dimensional accuracy and dynamic balance. The blank is produced by centrifugal casting, followed by precision machining and inspection.
- GW Precision
- China，Luoyang
- Contractual Stipulation
- Anual Capacity of Steel Spool is 4000 pieces
- Information
Casting Steel Spool Of Aluminum Foil Mill Machine Tested By Dynamic Balancing Machine
The ZG310-570 casting steel spool is designed for aluminum foil rolling mill applications and other non-ferrous metal rolling equipment. The representative specification is 565 × 505 × 1600 mm. As a rotating component, the steel spool requires controlled concentricity, dimensional accuracy and dynamic balance to support stable operation at high speed.
ZG310-570 is a medium-carbon cast steel with high strength and good casting performance. Its chemical composition follows GB/T 11352-2009: carbon 0.25–0.35%, silicon 0.20–0.45%, manganese 0.50–0.80%, phosphorus ≤0.035% and sulfur ≤0.035%. Carbon contributes to strength and hardness; silicon supports casting fluidity; manganese helps grain refinement, hardenability and toughness. Controlled phosphorus and sulfur help protect toughness.
Application in Aluminum Foil Rolling Mills
The casting steel spool is designed for aluminum foil rolling mill applications. Its main functions include supporting rollers, transmitting torque and maintaining dynamic stability during high-speed rotation. It can bear radial and axial loads during rolling.
The supplied technical data specifies speeds of approximately 500–1500 rpm, with typical precision-rolling operation around 800–1200 rpm. Dynamic balance correction helps reduce vibration, with ISO G2.5 identified as the balance grade.
The rolling-zone temperature can reach approximately 150–300°C, requiring suitable thermal-fatigue resistance. The steel spool may also contact rolling oil, so wear and corrosion resistance are important. Applications include four-roll and six-roll aluminum foil rolling mills, such as Sendzimir mills, as well as roughing and precision rolling stands.
Casting Steel Spool Produce Process
Centrifugal Casting and Machining
GW Precision uses centrifugal casting to produce the steel spool blank. This process provides a suitable foundation for large rotating sleeve components before precision machining.
Based on accumulated manufacturing experience, the company independently designed and developed a horizontal automatic boring machine and obtained national invention certification. The machine improves inner-hole machining quality and processing efficiency while reducing manual workload.
For outer-surface machining, GW Precision uses advanced CNC automatic machine tools. The combination of centrifugal casting, dedicated boring equipment and CNC machining supports the dimensional accuracy and concentricity required for rotating steel spool components.
Dynamic Balancing and Quality Inspection
Dynamic balancing is an important inspection item for the aluminum foil rolling mill steel spool. Because the component rotates at high speed, residual unbalance can affect vibration and operating stability.
GW Precision performs dynamic balance inspection and correction according to product requirements, while concentricity and dimensional accuracy are controlled during machining. Dynamic balancing works together with conventional dimensional inspection to provide control of the finished steel spool before delivery.
The company also has its own capabilities in process design, development and manufacturing, supported by established machining techniques and experienced personnel. A management system is maintained for production, quality control and after-sales service.
GW Precision's steel spool customers are distributed across China, with products also supplied to companies in Europe and India. The annual production capacity of steel spools is approximately 4,000 sets per year.
The representative ZG310-570 steel spool is 565 × 505 × 1600 mm, and products can be customized according to customer drawings, rolling mill configuration and technical requirements. GW Precision provides a manufacturing process covering material control, centrifugal casting, boring, CNC machining, dimensional inspection and dynamic balancing for customized steel spool products used in aluminum foil and other non-ferrous rolling applications.
