Supports special shapes with water jet processing.
■Overview of Processing Example Product Name: NBR Rubber Flange Gasket (with Tabs) / Dimensions: 10K-50A Thickness 1.5mm / This processing example involves the production of NBR rubber flange gaskets for a piping equipment manufacturer. This product features a special shape with tabs (protrusions) designed to improve installation position confirmation and workability. By adopting water jet processing, we achieved high-precision machining of the complex outer shape, including the tab sections, four bolt holes, and a central piping hole, while minimizing thermal impact on the rubber material. ■Product Features NBR (Nitrile Rubber) has excellent oil resistance, making it an ideal synthetic rubber for seals in fuel oils and lubricants. It also boasts high mechanical strength and wear resistance, and is widely used in O-rings, gaskets, hoses, and more. However, its weather resistance and ozone resistance are low, making it unsuitable for outdoor use; it is primarily utilized in indoor hydraulic and pneumatic equipment.
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■Processing Method Water jet cutting 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, it is possible to produce high-quality products in a short time. Additionally, the dimensional tolerances that were significantly affected by traditional manual processing are greatly improved, resulting in stable processing accuracy. The taper of the cutting surface from press processing can also be improved with water jet processing. ■Q&A Q: What are the advantages of gaskets with ears? A: Having ears allows for easy visual confirmation of the gasket's installation position, making alignment and positioning during assembly easier. Additionally, removal during replacement is also simple. Q: What applications are suitable for NBR rubber? A: Due to its excellent oil resistance, it is ideal as a sealing material for piping and hydraulic equipment that handle fuel oils and lubricants. It also has high mechanical strength and is widely used as an industrial packing material. Q: What are the advantages of processing rubber materials with water jet cutting? A: It can be processed without generating heat, preventing the degradation or hardening of the rubber. Moreover, complex shapes can be cut with high precision, and the cutting surfaces are finished smoothly.
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Please leave the processing of NBR rubber gaskets to Daiko. We can flexibly accommodate special shapes such as those with flanges and non-standard sizes. Our water jet processing achieves high precision finishes. We welcome inquiries for a wide range of needs, from prototypes of a single piece to small lots and mass production. Please feel free to contact us for quotes on custom products.
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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.'
