Supports inner diameter cutting processing with a water jet.
■Overview of Processing Example Product Name: NBR Rubber Flange Gasket / Dimensions: Outer Diameter 59φ × PCD 50 × Bolt Hole 5φ - 8 Holes × Thickness 1.5t / This processing example features a flange gasket made from NBR rubber. Using water jet cutting, we performed circular cutting on the outer circumference and created eight bolt holes, as well as a cross-shaped notch on the inner diameter. This notch is designed to facilitate access to the interior of the piping and aid in positioning during assembly. Water jet cutting does not affect the rubber material with heat and allows for high-precision finishing of complex notch shapes. ■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 resistance to weather and ozone is low, making it unsuitable for outdoor use; it is primarily utilized in indoor hydraulic and pneumatic equipment.
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basic information
■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, 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 cutting surface from press processing can also be improved with water jet processing. ■Q&A Q: What is the purpose of machining notches on the inner diameter? A: It is used for purposes such as securing access to the inside of piping, positioning during assembly, or ensuring the passage route for fluids, depending on the application. Q: Is it possible to perform similar notch machining with materials other than NBR rubber? A: Yes, it can also be accommodated with various rubber materials such as EPDM, silicone rubber, and fluorine rubber. We will propose the optimal material according to the usage environment. Q: Is it possible to produce in small lots? A: Yes, since water jet processing does not require molds, we can flexibly accommodate small lot production starting from one piece.
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Please leave the processing of NBR rubber gaskets to Daiko. With water jet processing, we can handle intricate cuts and complex hole drilling with high precision. We flexibly accept orders from a single prototype to small lots and custom specifications. Even if you don't have a drawing, we can manufacture from a physical sample, so please feel free to consult with us first.
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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.'
