ダイコー Product Lineup

Are there any issues regarding leak prevention in PVC piping? "When I tried to stop the leak by tightening it strongly, the flange broke." "The tightening is inconsistent among workers, leading to unstable construction quality." "I thought I had tightened it properly, but it's still leaking." Unlike metal, PVC piping cannot be tightened with excessive force. Therefore, a delicate balance is required with standard sheet gaskets to ensure that they "do not leak but also do not break from over-tightening," which always carries the risk of leakage. *For more details, you can view the related links. Please feel free to contact us for more information.

Our company is one of the few specialized manufacturers that consistently handles everything in-house, from the selection of heat-resistant materials such as glass cloth and biodegradable cloth, to our unique "rubber coating process," and finally to the production of gasket products. The "rubber coating process" is a technique that coats and impregnates rubber onto base materials like glass cloth and biodegradable cloth. This creates added value that cannot be achieved with the materials alone and solves our customers' challenges. 【Features】 ■ Improved processability ■ Enhanced sealing properties ■ Suppression of dust dispersion *For more details, please download the PDF or feel free to contact us.

We offer large-diameter joint sheet processing. "We need a large-diameter joint sheet gasket exceeding φ3000, but we can't find a processing company," or "We require a special shape with high processing precision." Daiko solves these challenges. By combining one of Japan's largest water jet processing machines with years of know-how, we provide high-precision, short-lead-time gasket processing services that meet our customers' stringent requirements. 【Features】 ■ Zero thermal impact for high quality ■ High precision processing ■ Safety with no dust generation ■ Capable of handling large diameters and thick materials *For more details, please download the PDF or feel free to contact us.

Our company offers thick rubber processing (up to 100mm thick) and precision machining. "I want to process rubber that is 100mm thick," "I want to create a prototype without a mold," "I need complex shapes cut with high precision." Daiko's water jet processing solves these challenges in thick and precision rubber processing. We accommodate a variety of materials, from natural rubber to fluorine rubber, and faithfully reproduce various shapes from a single customer drawing. 【Features】 ■ No mold required, available from one piece ■ Zero thermal impact, maintaining material properties ■ Proven capability for thickness up to 100mm ■ Complex shapes can be handled freely *For more details, please download the PDF or feel free to contact us.

We offer gasket processing for Nichias high-performance joint sheet "TOMBO No.1120." In particular, we specialize in producing complex-shaped gaskets required for high-temperature steam lines and heat exchangers, which are difficult to handle with typical non-asbestos joint sheets. We provide high-precision products made to order from just one of your drawings. 【Features】 ■ Custom processing for complex shapes, including heat exchangers ■ Production from one piece, easy repeat orders ■ Abundant inventory and quick delivery *For more details, please download the PDF or feel free to contact us.

We offer gasket processing of Nichias joint sheet "TOMBO No.1995." Utilizing advanced water jet cutting machines, we respond to various customer needs with high precision, short delivery times, and low costs, from a single prototype to large diameter products. Since we process directly from CAD data, there is no need to create expensive dies. This significantly reduces initial costs such as molds. 【Features】 ■ No molds required, low cost and short delivery time from a single prototype ■ Zero heat impact, high precision and high-quality finish ■ Up to 5.5m, we can handle large diameter and oversized sizes *For more details, please download the PDF or feel free to contact us.

Our company specializes in precision cutting and processing of PTFE (polytetrafluoroethylene resin). In particular, we have extensive experience in processing "filled PTFE" that can withstand harsh conditions where standard PTFE may not perform adequately. We conduct detailed hearings on the customer's usage environment and applications, providing consistent support from optimal material selection to high-quality product processing. 【Features】 ■ Excellent chemical resistance ■ Superior electrical insulation ■ Low friction coefficient ■ Non-stick properties ■ Wide operating temperature range *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a ring-shaped product with dimensions φ119×φ80 from a very thick sponge material (B-4) with a thickness of 76mm. Such thick materials cannot be processed with press processing as the blades cannot reach, and plotter processing cannot accommodate the thickness of the material. Therefore, we used our water jet cutting machine, which precisely cuts without crushing the material by spraying water at high pressure. 【Product Features】 ■ Compatible with extremely thick material of 76mm ■ No mold required, low cost, and short delivery time ■ Precise dimensional accuracy *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a 90mm square plate from a 1mm thick sheet material based on the CAD data provided by the customer. The processing details include creating one hole with a diameter of 49mm in the center and applying C2 chamfering (corner rounding) at the four corners. Using our plotter processing machine (with router functionality), we processed the material directly from the data with precision, without the need for a die. 【Features of Plotter Processing】 ■ Cost reduction without the need for a die ■ Supports small lot production from a single piece ■ Easy repeat ordering with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a U-shaped gasket measuring 180mm x 220mm from a 5mm thick neoprene rubber sheet based on the customer's CAD data. The processing involved creating seven holes with a diameter of 16mm. Using our water jet cutting machine, we precisely cut the material with a high-pressure water stream. Since no die is required, we were able to respond quickly starting from a single prototype. 【Features of Water Jet Cutting】 ■ No die required, low cost, and short delivery time ■ Precision processing using CAD data ■ High-quality cutting with no thermal impact ■ Capable of handling large workpieces *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a flange gasket from a PTFE soft gasket "TOMBO No.9096" (thickness 5mm) based on the customer's drawing. The processing details include creating a ring shape with an outer diameter of φ170mm and an inner diameter of φ114mm, with six φ12mm bolt holes drilled at a P.C.D. of 150mm. Using our plotter processing machine (with router functionality), we processed directly from the data without creating a die. 【Features of Plotter Processing】 ■ Cost reduction without the need for a die ■ Supports small lot production from one piece ■ Easy repeat ordering with data storage ■ Compatible with various materials and shapes *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a special-shaped gasket measuring 80mm x 81mm from the joint sheet "TOMBO No.1993" (thickness 1mm) based on the CAD data provided by the customer. The processing involved creating two holes with a diameter of 21mm. Using our water jet cutting machine, we precisely cut the material with a high-pressure water stream. Since no die was required, we were able to respond quickly even to requests for just one piece. 【Features of Water Jet Cutting】 ■ No die required, resulting in low cost and short delivery time ■ Precision processing using CAD data ■ High-quality cutting with no thermal impact ■ Capable of handling large workpieces *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured 30 ring-shaped gaskets from Vulkaron gasket "Vulkare No. 7020" (thickness 2mm) based on the customer's specifications, with an outer diameter of φ90mm and an inner diameter of φ70mm. Using our plotter processing machine (with router function), we processed the gaskets directly and precisely from CAD data. Since no die cutting was required, we delivered them quickly with a clean finish and no burrs. 【Features of Plotter Processing】 ■ Cost reduction without the need for die cutting ■ Support for small lot production starting from one piece ■ Clean finish with no burrs ■ Easy repeat ordering with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a large diameter ring with an outer diameter of φ732mm and an inner diameter of φ672mm from a 15mm thick NBR rubber sheet based on the customer's CAD data. The processing involved cutting the ring to the inner and outer diameters, as well as applying a C5 chamfer to the outer circumference. Using our plotter processing machine (with router functionality), we completed the cutting of thick rubber and the chamfering process in one machine. This allowed us to respond to a single order with high precision and a short delivery time, without the need for a die. 【Features of Plotter Processing】 ■ Cost reduction without the need for a die ■ Support for small lot production from a single piece ■ Cutting and chamfering achieved in one go ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we produced 24 ring-shaped washers with an outer diameter of φ120mm and an inner diameter of φ90mm from a 6mm thick PTFE sheet based on the customer's specifications. Using our plotter processing machine (with router function), we processed the washers directly and precisely from CAD data. Since no die cutting was required, we achieved a clean finish without burrs and delivered them promptly. 【Features of Plotter Processing】 ■ Cost reduction without the need for dies ■ Supports small lot production from one piece ■ Clean finish without burrs ■ Easy repeat ordering with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a JIS pipe flange gasket (nominal diameter 2K-650A) in RF (Raised Face) shape from Naflon PTFE low creep gasket "TOMBO No.9007-LC" (thickness 3mm) based on the customer's specifications. Using our plotter processing, we precisely processed it directly from CAD data. Although it was a single request for a large diameter, we were able to deliver it quickly with a beautiful finish without burrs, as no die was needed. 【Features of Plotter Processing】 ■ Cost reduction without the need for a die ■ Supports small lot production from one piece ■ Beautiful finish without burrs ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured an octagonal plate measuring 100mm on each side from a 5mm thick felt sheet based on the customer's CAD data. The processing involved creating a single hole with a diameter of 68mm in the center. Using our plotter processing machine, we cut directly from the data with precision. Since no die was required, we were able to respond quickly to requests for just one piece, resulting in a clean finish without any burrs. 【Features of Plotter Processing】 ■ Cost reduction without the need for a die ■ Support for small lot production starting from one piece ■ Clean finish without burrs ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a gasket with long hole processing on a plate measuring 50mm x 150mm from a 3mm thick fluororubber sheet based on the DXF data provided by the customer. Using our water jet cutting machine, we directly and accurately cut from the data. Since no die is required, we were able to respond quickly even to requests for just one piece. 【Features of Water Jet Cutting】 ■ No die required, low cost and short delivery time ■ Precision processing using CAD data ■ High-quality cutting with no thermal impact ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case of cover-type processing of NBR rubber conducted by our company. Based on the customer's CAD data, we cut a 3mm thick NBR rubber sheet to dimensions of 196mm × 500mm using a plotter cutting machine, and created four φ6mm holes. After that, we adhered both ends of the sheet to finish it as a tubular cover-type product. By providing a consistent response from cutting to adhesion, we manufactured a product that meets the customer's specifications. 【Features】 ■ Supports complex shapes with composite processing ■ No die required, resulting in low cost and short delivery time ■ Clean finish with no burrs ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

In response to our customers' requests for improved product management and traceability, we would like to introduce a case where a two-dimensional code was printed on MC nylon machine parts using a laser marker. Unlike stickers or labels, there is no worry about the printing peeling off or fading, allowing for permanent information management. Printing with a laser marker is an effective alternative to traditional methods such as sticker application for part traceability and information management. 【Features of Laser Marker Processing】 ■ Permanent printing that does not peel off ■ Improved traceability ■ Non-contact and damage-free ■ Direct processing from data ■ Compatible with a variety of products *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured nameplates for equipment from stainless steel plates at the request of a customer. First, we precisely cut the plates to the specified dimensions and shapes using a laser cutting machine. After that, we clearly engraved the product name and serial number using a laser marker. By handling everything from cutting to marking in a consistent manner, we were able to deliver high-quality products quickly. 【Features of Laser Marker Processing】 ■ Prints that do not peel or fade ■ High-resolution marking ■ Suitable for nameplate production ■ Non-contact processing ■ No molds required, accommodating a variety of products *For more details, please download the PDF or feel free to contact us.

Based on the customer's drawing, we produced a large curtain measuring 1250mm x 5600mm from a 6mm thick natural rubber sheet. Using our water jet cutting machine, we precisely cut the upper mounting holes (19 holes of φ15mm) and the curtain-like slits as a single unit. *For detailed information about the column, please refer to the related link. For more details, you can download the PDF or feel free to contact us.

Based on the customer's drawing, we manufactured a large-diameter gasket with an outer diameter of φ548mm and an inner diameter of φ410mm from a 5mm thick NBR rubber sheet. First, we precisely cut the gasket body (with 16 φ27mm bolt holes on a P.C.D. of 510mm) and the ring-shaped parts using a water jet cutting machine. After that, we bonded the rings to both sides of the body, finishing it as a stepped seal gasket. *For more detailed information, please refer to the related links. For further details, you can download the PDF or feel free to contact us.

This is an example of producing a large and complex U-shaped gasket measuring 545mm x 709mm from a non-asbestos joint sheet "Valqua No. 6500" with a thickness of 3mm, based on the customer's drawing. The processing involved drilling 17 holes with a diameter of 21mm. Using our water jet cutting machine, we achieved high precision cutting directly from CAD data. Valqua No. 6500 is a non-asbestos general-purpose joint sheet made by combining organic and inorganic fibers with NBR and other materials. It demonstrates good sealing properties against general utility fluids and has a long track record in a wide range of applications, including petroleum refining, chemical plants, ships, and general piping. [Processing Features] - Proposal for cost reduction - Low cost and short delivery time without the need for a die - Direct processing from drawings - Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

This is an example of producing a large-diameter flange gasket with an outer diameter of φ695mm and an inner diameter of φ595mm from a 3mm thick silicone rubber sheet based on the customer's drawing. The processing involved drilling 12 bolt holes of φ15mm on a P.C.D. of 655mm. Using our water jet cutting machine, we achieved high-precision cutting according to the data. Since no die was required, we were able to respond quickly to a request for a single prototype. Water jet cutting is suitable for processing elastic materials like rubber because it cuts with a high-pressure water stream. 【Processing Features】 ■ No die required, low cost, and short delivery time ■ Direct processing from drawings ■ High-quality cutting with no thermal impact ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

We would like to introduce a processing case of "V6502 Black Super" conducted by Daiko Co., Ltd. Based on the customer's drawings, we manufactured a flange gasket for 10K-50A from a 3mm thick non-asbestos joint sheet "Vulcan No. V6502 (Black Super)." It was processed into a shape with handles using a water jet cutting machine. Having handles makes it easier to handle and manage the installation of the gasket. Additionally, since the handles protrude outside the flange, it helps prevent human error by forgetting to insert the gasket. [Case Overview] - Material: Vulcan No. V6502 (Black Super) - Product: Flange gasket for 10K-50A (with handles) - Work Details: Processed into a shape with handles using a water jet cutting machine *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured a cylindrical cover with an outer diameter of φ216mm and a height of 48mm from a 3mm thick EPDM rubber sheet based on the customer's drawing. First, we precisely cut the sheet to the specified dimensions using a water jet cutting machine, and then finished it into a cylindrical shape through adhesive processing. By combining cutting and adhesion, we can flexibly accommodate product shapes that are difficult to achieve through integral molding. We create CAD data based on the drawings provided by the customer and process it directly, eliminating the need for molds. Please feel free to contact us for more information. 【Case Overview】 ■ Material: 3mm thick EPDM rubber sheet ■ Product: Cylindrical cover with an outer diameter of φ216mm and a height of 48mm ■ Work Details ・ Precisely cut the sheet to the specified dimensions using a water jet cutting machine ・ Finished into a cylindrical shape through adhesive processing *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study of water jet processing of "EPDM rubber" that our company conducted. In this case, based on the drawings provided by the customer, we manufactured a large diameter flange gasket with an outer diameter of φ600mm and an inner diameter of φ500mm from a 4mm thick EPDM rubber sheet. The processing involved drilling 14 bolt holes of φ12mm on a P.C.D. of 550mm, using our water jet cutting machine to achieve high precision cutting according to the data. 【Case Overview】 ■ Material: 4mm thick EPDM rubber sheet ■ Product: Large diameter flange gasket with an outer diameter of φ600mm and an inner diameter of φ500mm ■ Processing details: Drilling 14 bolt holes of φ12mm on a P.C.D. of 550mm *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we created original bookmarks from stainless steel and plastic sheets at the request of a customer. First, we precisely cut the shape of the bookmark using a laser cutting machine, and then we clearly engraved the specified text and design using a laser marker. By handling everything from cutting to marking in a consistent manner, we can produce high-quality original goods. If you have requests such as "I want to create an original bookmark" or "I want to engrave a name on a commemorative item," please feel free to consult with us. 【Case Overview】 ■ Material: Stainless steel and plastic sheets ■ Product: Original bookmarks ■ Work Details ・Precise cutting of the bookmark shape using a laser cutting machine ・Clear engraving of the specified text and design using a laser marker *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we manufactured nameplates for equipment from stainless steel plates at the request of a customer. First, we precisely cut the stainless steel plates to the dimensions and shapes specified by the customer using a laser cutting machine. After that, we clearly engraved the product name, model number, specifications, and other text information using a laser marker. By handling everything from cutting to marking in a consistent manner, we were able to deliver high-quality products quickly. If you have requests such as "I want to create an original nameplate" or "I want to add a management number to a part," please feel free to consult with us. [Case Overview] ■ Material: Stainless steel plate ■ Product: Nameplate for equipment ■ Work Details - Precisely cut to the dimensions and shapes specified by the customer using a laser cutting machine - Clearly engraved text information such as product name, model number, and specifications using a laser marker *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study of water jet processing of our heat-resistant glass cloth "D5400." Based on the DXF data provided by the customer, we manufactured a gasket measuring 62.5mm square from the 3.2mm thick "D5400." Using a water jet cutting machine, we precisely cut the outer shape and inner holes according to the data. Materials like glass cloth, which are soft and prone to fraying, can be finished beautifully when cut with water. [Case Overview] ■ Material: 3.2mm thick heat-resistant glass cloth "D5400" ■ Product: 62.5mm square gasket ■ Work Details - High-precision cutting of the outer shape and inner holes according to the data provided by the customer. *For more details, please download the PDF or feel free to contact us.