7113 Iron Round Three-Piece Tin Can for Pet Food | Manufacturing & Benefits

7113 Iron Round Three-Piece Tin Can: Manufacturing Process for Pet Food Packaging

Pet food tin cans are the most mainstream and safe packaging containers for wet pet food, including canned cat food, dog food, and pet snacks. The 7113 iron round three-piece tin can is a classic customized packaging solution for the pet food industry, featuring high airtightness, food-grade safety, strong pressure resistance and long shelf-life performance. Strict standardized manufacturing processes are adopted throughout production to ensure the packaging meets global pet food safety and storage standards. This article details the complete pet food tin can manufacturing process for 7113 three-piece cans.

1. Food-Grade Raw Material Selection

The production of pet food tin cans strictly selects high-quality food-grade tin plate as the core raw material, which is the key to ensuring pet food safety. Different from ordinary industrial iron sheets, the tin plate used for 7113 pet food cans has uniform tin coating thickness, excellent corrosion resistance and non-toxic properties. Nearly 70% of high-grade tin plate globally is applied to food and pet food metal packaging, effectively isolating grease, moisture and acidic ingredients in pet wet food to avoid chemical reactions between the metal and contents. Meanwhile, qualified aluminum auxiliary materials are matched for can end production to ensure the overall structural stability of the three-piece cans.

2. Internal and External Protective Coating & Drying

Anti-corrosion and food-safe coating treatment is an essential process for pet food tin cans. Professional non-toxic food-grade coating is evenly sprayed on the inner and outer surfaces of the cut tin plate. The inner coating can effectively prevent metal oxidation and tin dissolution, completely avoiding contamination of pet food, while the outer coating plays a role in anti-rust, wear resistance and beautifying the appearance for printing brand information.

After spraying, the metal sheets are sent to a constant-temperature drying oven for curing treatment. Strict temperature and time control ensure the coating is firmly attached without peeling, blistering or peculiar smell, meeting international pet food packaging safety specifications.

3. Precision Sheet Cutting and Can Body Forming

After drying and curing, the coated metal plates are precisely cut into standard sizes matching the 7113 can model by professional shearing equipment. The standardized sheet blanks ensure uniform specifications and assembly accuracy of finished cans.

Subsequently, the sheet blanks are rolled and welded into tubular can bodies. As a typical three-piece can structure, the 7113 pet food can adopts longitudinal seam welding technology to form a seamless and firm can body structure. The welded cylindrical can body is called a can blank. This forming process effectively avoids cracking and leakage, ensuring the structural firmness of the can body during high-temperature sterilization and long-term storage.

4. Can Body Inspection, Printing and Customization

All formed can blanks undergo strict quality inspection to screen out defective products with welding gaps, deformation or coating damage. Qualified can bodies support customized offset printing, which can print pet food brand logos, product parameters, ingredient information and production dates on the outer surface to meet personalized customization needs of different pet food brands.

5. Pet Food Filling and Airtight Crimp Sealing

The inspected and qualified 7113 three-piece tin cans enter the automated filling workshop for pet wet food filling. After accurate quantitative filling of pet food, the cans are sealed by professional multi-station can sealing machines. Double crimping airtight sealing technology is used to realize full isolation between the internal pet food and external air, dust and bacteria.

The multi-station sealing equipment supports high-efficiency mass production, with stable sealing pressure and uniform crimping gaps, effectively preventing air leakage, liquid leakage and mold growth of pet food during storage and transportation.

6. High-Temperature Sterilization and Antiseptic Treatment

Different from ordinary packaging cans, pet food tin cans require strict sterilization processes to achieve long-term preservation. All sealed finished cans are sent to industrial autoclaves for high-temperature sterilization or pasteurization treatment. This process thoroughly kills harmful bacteria, microorganisms and spores inside the cans, inhibits food spoilage and deterioration.

After sterilization and natural cooling, the pet food cans realize room-temperature long-term storage without preservatives, which is the core advantage of canned pet food packaging.

7. Final Quality Inspection and Finished Product Packaging

After sterilization, all products undergo final full inspection, including airtightness test, appearance inspection, deformation detection and leakage detection. Qualified 7113 pet food tin cans are sorted and packaged in batches, and then stored in a dry and dust-free warehouse, ready for transportation and market sales.

Conclusion

The manufacturing process of 7113 iron round three-piece tin cans for pet food covers food-grade raw material selection, coating curing, precision forming, customized printing, airtight sealing, high-temperature sterilization and strict quality inspection. Every production link complies with food safety standards, creating safe, durable and long-preservation metal packaging for pet wet food. With reliable sealing performance and stable quality, 7113 three-piece pet food tin cans have become the preferred packaging solution for major pet food brands worldwide.