The materials used in cylindrical packaging forming machines fall into two categories: those for the machine's structural framework and those for the working components that come into contact with materials. Material selection for these different parts directly impacts the equipment's durability and the hygienic compliance of the finished packaging.
Main Body Materials
These materials constitute the equipment's frame and chassis, determining its overall structural rigidity and service life:
Carbon Steel / High-Quality Structural Steel: Used for the basic structure of most models, this material offers a balance of moderate cost and high strength. When treated with anti-rust coatings, it meets the load-bearing requirements of standard production environments and is the mainstream choice for entry-level and mid-range models.
304 Stainless Steel: Frequently used for the main bodies of machines intended for sectors with strict hygiene standards, such as the food and pharmaceutical industries. It offers excellent rust and corrosion resistance and complies with safety regulations for food-contact equipment. Some high-end models utilize thickened 304 stainless steel plating to further enhance durability.
Core Working Component Materials
These materials come into direct contact with packaging materials or the finished product and are crucial for ensuring production stability and product quality:
Material-Contact Components:Rollers and work surfaces that directly touch packaging sheets (such as PVC, APET, or PETG) typically utilize Food-grade 304 stainless steel. High-precision roller surfaces often undergo mirror polishing to prevent scratching transparent packaging materials, ensuring the finished product remains free of surface marks.
Transmission and Actuation Components: Key load-bearing parts-such as those in curling and clamping mechanisms-are usually made from alloy structural steel. These parts undergo quenching and hardening treatments to improve wear resistance and prevent deformation during long-term operation.