Welding repair and scratch removal of resin hopper through polishing.
At the bento manufacturing factory, we use a hopper made of resin (polypropylene) for the machine that packs cooked rice into bento boxes. Due to frequent installation and removal for cleaning, the welded feet can come off, and cracks can appear at the joints. Similarly, the chute made of resin (nylon) shows signs of aging, such as splinters, fuzziness, and scratches on the surface, making it difficult to clean. Issues: 1. Parts are purchased from the machine manufacturer, but they are never cheap. 2. We attempt self-repair (by securing with tape), but it peels off again quickly. 3. It is very unfortunate that the hopper, which is still usable in terms of surface condition, cannot be used because the joints have come off. 4. The chute still seems usable, but if the dirt cannot be removed, the risk of mold and bacteria growth increases significantly.
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basic information
It has been confirmed that the joint of the hopper is a welded type, so it has been determined that it can be restored by welding repairs at the crack occurrence point. The legs will also be temporarily removed and reattached by re-welding, and the nylon chute can be restored by polishing the surface where damage has occurred. Points: 1. Repairing has significant advantages in terms of cost and delivery time compared to purchasing new parts. 2. The machine manufacturer does not provide repair services. *Polypropylene is a resin material that is widely used in food machinery due to its high heat resistance, chemical resistance, and lightweight properties. It is not suitable for repairs using tape or similar methods due to poor adhesion, but welding (thermal fusion) is possible.
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Download All Catalogs![[Case Study] Cost Reduction with the Spirit of "Mottainai" - Repairing and Polishing Resin Hoppers through Welding and Grinding to Eliminate Scratches](https://image.mono.ipros.com/public/catalog/image_generated/01/fe8/304053/304053_IPROS902306474154019462_1.jpg?w=120&h=170)
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