Weather you call it cup sealing knife, tray sealer blades or tub sealing knife, Yafei can produce it according to your drawings and samples. As a leading manufacturer of packaging machinery blades, Yafei designs these tools to cleanly and efficiently remove sealed lidding film from containers—such as cups, trays, and pots—after heat sealing and prior to product dispensing. Engineered for reliability and performance, YAFEI’s sealing knives are critical to maintaining product integrity, hygiene, and operational efficiency across diverse industries.Yafei’s replacement knives are precision-made to integrate seamlessly with equipment from leading OEMs, including but not limited:

1. Yafei manufacture high precision tray seal knives:  

     ·      Tooth profile following your requirements

      · Shapes on demand (rectangular, round, oval…)

     · Various fixing systems (holes, slots, inserts, base plate…)

       Knives can be manufactured precisely to customer’s specifications on receipt of a drawing or sample.

2. Yafei sealing knives excel in the following performance areas:

     · Precision Cutting: Each blade delivers a consistent and clean cut along the contour of the container, minimizing the risk of incomplete removal or product spillage.

     · Blade Longevity: Manufactured to sustain sharpness through extended cycles, YAFEI blades reduce frequency of replacement and enhance line productivity.

     · Hygienic Design: Easy to clean and sanitize, YAFEI tools help prevent contamination—a crucial feature for food, pharmaceutical, and medical applications.

     · Durability: Built to withstand corrosive environments, frequent washdowns, and exposure to chemicals, YAFEI sealing knives offer long-term reliability.

3. Primary Applications and Uses:
     YAFEI’s sealing knives are widely used in industries utilizing form-fill-seal packaging systems, including:

    Application-Specific Knives:

    · Cup Sealing: Designed for precision cutting of small portion-control cups during sealing. Ideal for cereals, dairy items, snack cups, dips, and soups.

    · Tray Sealing: Engineered for use in Modified Atmosphere Packaging  and gas-flushing systems, suitable for packaging fresh meats, seafood, poultry, produce, and ready meals.

    · Tub Sealing: Tailored for MAP and gas-flush sealing machines, perfect for packaging fresh protein products, vegetables, and prepared meals.

4. Manufacturing Materials:
      YAFEI employs high-quality materials to ensure superior performance and durability:

     Blade Material: Constructed from high-grade stainless steel (e.g., 440C or 420J2) for corrosion resistance and edge retention. Select blades feature a non-stick PTFE coating to reduce residue buildup and friction.

     In summary, the cup and tray sealing knife is a vital component in automated packaging processes, and YAFEI enhances this tool with precision engineering and robust construction. By combining innovative design with industry-leading materials, YAFEI’s sealing knives deliver unmatched efficiency, safety, and hygiene—making them the preferred choice for packaging professionals worldwide. Trust YAFEI to provide the tools that keep your production lines running smoothly and your products perfectly presented.