Supports asymmetric hole arrangement with water jet processing.
■Overview of Processing Example Product Name: EPDM Unequal Hole Gasket / Dimensions: 0.5t × 60φ × 26φ (Bolt holes 6.6φ-4, 7φ-2, 5.1φ-2) / This processing example involves the production of an unequal hole gasket made from EPDM material. Due to the non-equidistant arrangement of the bolt holes, it was difficult to accommodate this specification with conventional mold processing; however, by adopting water jet processing, we achieved production without the need for molds. Even with complex hole arrangements, we ensure high positional accuracy and reproducibility, and we can accommodate small lot sizes. ■Product Features EPDM (Ethylene Propylene Rubber) is extremely excellent in weather resistance and ozone resistance, making it a rubber that is less prone to deterioration even when exposed to outdoor environments such as ultraviolet rays and rain. It is resistant to water and chemicals, but it is weak against mineral oils and cannot be used with them. Leveraging its high durability, it is widely used in construction waterproof sheets, window frames, and plumbing gaskets, among others.
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basic information
■Processing Method A water jet is a water pressure cutting machine that uses high-pressure water to cut materials. It processes by spraying high-pressure water. By changing the injection nozzle according to the processing material, high-quality products can be produced in a short time. Additionally, the dimensional tolerances that are significantly improved compared to traditional manual processing result in stable processing accuracy. The taper of the cut surface from press processing can also be improved with water jet processing. ■Q&A Q: Can you handle uneven hole arrangements? A: Yes, due to data linkage, we can process with high precision even with asymmetrical arrangements. Q: Is it possible to create prototypes from just one piece? A: Yes, since no mold is required, we can accommodate prototypes starting from one piece. Q: Can similar processing be done with other materials? A: Yes, we can handle a wide range of materials, including rubber and resin.
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Applications/Examples of results
Leave the processing of uneven holes and asymmetrical shapes of EPDM gaskets to Daiko. Thanks to water jet processing, we can produce without molds, allowing us to flexibly accommodate everything from single prototypes to small lots and mass production. Please feel free to consult us about custom specifications.
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Company information
Daiko is a manufacturer specialized in processing various industrial products, including gaskets and packing. With industry-leading processing equipment, including one of Japan's largest water jet cutting machines, and a wide range of materials such as joint sheets, rubber, resin, and metal, we meet our customers' diverse needs. Leveraging the technology and experience we have cultivated over 50 years, we provide high-quality, short-lead-time, and low-cost products to contribute to solving our customers' challenges. To respond to our customers' varied needs, Daiko's production bases are equipped with various processing facilities. Among them, the water jet cutting machines, with a total of four installed at our Osaka headquarters and Tokyo branch, boast one of the largest scales in the country. The maximum processing range is W4,000 × L5,500 mm, allowing for the high-precision manufacturing of large-diameter gaskets and packing. By maximizing material efficiency, we achieve the provision of 'high quality at low cost.'
