Glass Lid Steel Ring Production Process

Our factory specializes in the production of steel rings for glass lids, adopting the industry-proven and stable traditional nesting stamping process. From raw materials to finished products, we strictly control every link to ensure that the steel rings are precise in size, reliable in strength, and perfectly compatible with glass lids.

The entire production process is as follows:

1. Raw Material Cutting

According to the production specifications, high-quality cold-rolled steel plates are cut into standard circular plates, which serve as the basic raw materials for steel ring production, ensuring uniform and stable forming in subsequent processes.

2. Drawing Forming

The circular steel plates are put into special stamping equipment, and the edge of the plate is naturally formed into a raised annular ring structure through the mold, initially completing the three-dimensional contour forming of the steel ring.

3. Inner Ring Punching and Separation

Through the secondary stamping process, the excess circular plate in the middle is punched and separated, leaving only the outer annular steel ring blank. The circular plate punched out in the middle is not treated as waste, but is recycled as secondary raw material for further use.

4. Graded Nesting Reuse

The remaining circular plates after punching will be continuously put into the production process of smaller-sized steel rings in accordance with the principle of size matching. Through the method of nesting large rings with small rings and reusing step by step, the material utilization rate is maximized, and the product quality is not reduced while strictly controlling costs.

5. Shaping and Finishing

The annular steel ring is subjected to shaping, circle correction and deburring treatment to ensure that the steel ring has high roundness, smooth edges without burrs, and its dimensional accuracy meets the assembly requirements of glass lids.

6. Surface Treatment and Inspection

After cleaning, polishing and other subsequent treatments, the steel rings undergo multi-link inspections such as appearance, size and strength, and can be put into storage and delivered only after passing the inspection.

Process Advantages

• Stable Forming: The traditional stamping process is mature and reliable, the steel ring is not easy to deform, and has high fit with the glass lid.

• High Material Utilization Rate: Adopting the graded nesting mode, reducing waste, and combining quality and cost-effectiveness.

• Strong Compatibility: Precise and uniform size, suitable for assembly with various glass lids and silicone rings.

• Stable Batch Production: Suitable for multi-specification and mass production, with stable delivery time and consistent quality.