ダイコー List of Products and Services

We would like to introduce a gasket that can be used for high temperature and high pressure lines. The spiral type gasket is a high-performance semi-metallic gasket designed for high temperature and high pressure applications. ■ Structure - It consists of alternating layers of a V-shaped metallic thin strip (hoop) and cushioning material (filler) wound in a spiral shape, with the start and end of the winding fixed by spot welding. - There are four types of shapes: basic form, with inner ring, with outer ring, and with both inner and outer rings, tailored to fit the gasket seat of the target flange. ■ Features - Due to its distinctive structure, it can be used at high temperatures and pressures similar to metal gaskets. - It has excellent sealing properties. - It maintains sealing performance even under severe conditions of thermal cycling from low to high temperatures. * DaiKo's product [D1000 Thin Spiral Gasket Graphite (Graphitic Material)] This is a product from our original brand. We also handle products from domestic manufacturers.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We have performed adhesive processing on round cords. The round cords are glued together to create an O-ring shape. Unless otherwise specified, the adhesive surfaces are processed into a bias shape for bonding. By gluing in a bias shape, the adhesive surface expands, allowing for a stronger bond.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 〇T1995 1.5t We processed a complex-shaped item. Although the shape is intricate, we were able to process it according to the drawings. CAD data is also recorded for our achievements, allowing us to handle repeat orders without changing dimensions. The finish is protected by wrapping it in air caps.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We received a request for neoprene sponge 5t 56WX130L 4-C4, with some parts having tape attached. The processing involves applying tape to the back side, but only in certain areas, not covering the entire surface. We will process it with the water jet without tape and then apply the tape to the necessary areas.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We performed film processing on supplied materials. The processing was done with a plotter at a size of t0.1, 130W x 1267.6L, 4-φ23. Marking was done using a ballpoint pen tool. Although the thickness is thin, the tolerances were finished as specified.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We performed film processing on supplied materials. The processing was done with a plotter at a size of t0.1, 130W x 1267.6L, 4-φ23. We used a ballpoint pen tool for marking. Although the thickness is thin, the tolerances were finished as specified.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed T1995 3t φ3734. We manufactured it as a single piece from a size of 9S (3810X3810). This processing maximizes the capabilities of the water jet. Due to its large size, two people were involved in the pickup.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We have processed Teflon. It has been machined to the specified dimensions using a router, and the screw threads have been processed using taps. We can accommodate sizes other than M4 as we have the necessary processing tools. We also handle special processing such as counterboring and tapering, so please reach out to us.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We performed processing on a 50t stepped sponge. First, we processed the R150, and finally, we completed the stepped processing. When processing the step, we create an axis to secure the product, eliminating variations in the product's tolerances.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use a variety of processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and presses, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We have processed D4000. By incorporating SUS316 as a core material into expanded graphite, we create gaskets with excellent mechanical strength. Since SUS plates cannot be processed cleanly with a water jet, we use a plotter for this processing. Gaskets for water level gauges can be processed in various materials, including T1120, Teflon, and V7020, in addition to D4000.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed 100 tons of white sponge S35. Although it is a simple process to shape it into a donut, we cannot achieve a clean finish with a die cutter due to insufficient blade height. However, with a water jet, the processing surface can be finished vertically, eliminating the taper on the cross-section caused by die cutting.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed a 2t silicone with a diameter of 1.1φ. By adjusting the water pressure of the water jet, we were able to process it within tolerance, despite its very small size. Since it was a size that could not be processed with a die, our customer was pleased. Although it is one of Japan's largest water jets, we are also capable of processing precision parts.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We have processed insulation materials. This product has an aluminum foil treatment on the surface. There are 5 items, totaling 180 sheets processed. We used a plotter for processing, and we were able to cut the fibers of the insulation material cleanly. While the main demand is for roll materials, we are also waiting for requests for processed products such as parts for machinery.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed 9096-SGM using a plotter. SGM is a gasket made of 100% PTFE, which excels in heat resistance and chemical resistance, combining strength and flexibility. It is harder than soft Teflon and has excellent sealing properties. The processing was done with a plotter, resulting in a clean finish on the processed surface.

• Piping Materials

We can process various materials such as joint sheets, rubber, sponge, resin, and metal. This document includes numerous examples of processing using "general piping sheet gaskets," "steam-compatible sheet gaskets," and "PTFE (Teflon-based) gaskets." Since we have many processing machines in-house, we can offer one-stop solutions without mold costs for products such as water jet, laser, and plotter processing based on your requirements. 【Processing Examples】 ■ Water Jet Processing ■ Adhesive Processing *For more details, please contact us or download the PDF to view.

• Contract manufacturing
• Processing Contract
• Other processing machines

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We have processed a glass cloth with specifications of t1.6, φ910xφ802, P845. To improve the workability of the glass fiber, we have laminated it with a special rubber. We can also accommodate various spun products, including ceramic cloth, tape processing, and graphite-treated items.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. Are you having trouble selecting gaskets and packing? With the shift from asbestos to non-asbestos materials, it has become difficult to choose the right type. We have compiled a list of products from various manufacturers that are suitable for different fluids, and we hope you can use it as a guideline for your selection.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutting machines and plotters and presses, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed polyethylene foam, which is said to be used as cushioning material. Although it has a thickness of 60T, we were able to process it using a water jet. We processed four sheets of material measuring 1000W x 2000L, which fit efficiently on the processing table, resulting in minimal material loss and allowing for quick processing.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed 33 pieces of T1120 3t 10K-750A. We used 5 sheets of material measuring 2540W x 3810L and efficiently combined them with other products for processing. Since the processing range is 4000W x 5800L, we can also arrange 2 sheets of material measuring 2540W x 3810L. We can handle large-diameter processing with short lead times, so please feel free to contact us.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We offer a variety of processing machines, including one of Japan's largest water jet cutting machines, plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed a glass cloth frame measuring 3.2t and 262W x 920L. At Daiko, we also handle processing related to textile products, in addition to joint sheets and rubber/sponge. The glass cloth is a gasket used in exhaust fluid systems. It can be processed with a water jet, allowing for precise finishing according to the drawings.

• Piping Materials

I will explain the basics for achieving stress relaxation and stable sealing properties. ◆ What is stress relaxation? 　〇 It refers to the reduction of stress in the gasket due to the deterioration or deformation of the gasket material. A high relaxation rate makes it easier for bolts to loosen. ◆ Countermeasures 　〇 Use a thinner gasket. 　〇 Change to a material with higher heat resistance. ◆ Requirements for sealing materials 　〇 High-temperature characteristics, creep resistance, strength, etc. * The thicker the sheet, the greater the stress relaxation rate, as there are more points of structural failure (proportional to thickness and volume).

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We performed multiple processes from the material T1995, 2t, 2540Wx3810L. We processed a combination of multiple ordered products and standard stock. There was minimal material loss, allowing for efficient processing. The T1995 has raw material available up to 3810Wx3810L, and processing is possible with Daiko's water jet.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We performed multiple processes from the material V6500 3t 2540Wx3810L. We processed large-diameter gaskets, including a full gasket with a diameter of Φ1550 and a frame packing of 800Wx1000L. This processing takes advantage of the water jet's processing range.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. We processed a 1-ton three-sheet. While equivalent processing is possible with water jet cutting, the plotter can process while vacuuming (keeping the material flat). Unlike water jets, it does not get wet. For these two reasons, processing with a plotter is suitable.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 〇 EPDM Frame 3t 260Wx1000L 28 pieces We conducted processing at night using water jet cutting. With water jet processing, by inputting CAD data and setting the materials, it is possible to automate the processing to some extent. Although the delivery time is short, we were able to ship the order the day after it was placed.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We recreated a broken part from a beverage manufacturer based on the damaged component and incomplete drawings provided. Although there were some first-time processes, such as machining the seating on both sides, the finish of the cross-section was comparable to that of the original product.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed Viton rubber with a thickness of t5. Since the hardness of the rubber is 80°, which is somewhat hard, we reduced the processing speed when using the water jet compared to regular rubber. This time, we set the speed to approximately 1000mm per minute. We also have other thicknesses of Viton rubber in stock, so please feel free to inquire.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed T1995 05t using a water jet. Although it has a small diameter and a special hole shape, we were able to process it within tolerance. We received an order for 1,100 pieces, but since the water jet allows for automatic processing, we were able to meet the desired delivery date.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed urethane rubber with a thickness of 10mm. The outer circumference and long holes were processed using a water jet. The chamfering was done with a chamfering machine. By changing the pit, we can also perform chamfering other than the 45° angle. Urethane rubber falls into the category of hard rubber, but it can be processed with a water jet.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed 1 ton of Viton rubber, measuring 55W x 68.5L, with a slit of φ6-4. The slit is arranged radially, and there is a φ1 hole at the tip of the slit. Although the tolerance is for a small diameter, we were able to meet the customer's requirements. Careful consideration was also needed for data creation and work holding.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines) and plotters and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Examples】 We used 23mm neoprene rubber sheets to perform cutting processes such as edge beveling and recess machining. The router processing machine is specialized for gasket processing and is made in Germany, ensuring high processing accuracy and proficiency in cutting operations.

• Piping Materials

There are several issues with joint sheets, but I will explain the most common case, which is compression failure. ◆Details of the problem 　〇Cracks occurred around the gasket, making it extremely thin. ◆Possible causes 　〇Compression failure due to excessive tightening. 　〇Excessive load applied to a part of the gasket due to lack of parallelism of the flange or deformation. 　〇Localized slippage of the joint sheet due to uneven application of paste. ◆Countermeasures 　〇Tighten without exceeding the allowable tightening surface pressure of the gasket. 　〇Problems caused by improper construction such as single-sided tightening, insufficient tightening, or excessive tightening. 　〇Correct the parallelism and deformation of the flange. 　〇When applying paste, apply it thinly and evenly.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 〇 Neoprene rubber: We performed width cutting from a 5mm thick sheet to 7W x 10,000L. The width of 7mm is narrow compared to the 5mm material thickness, making the processing difficulty higher. We first cut at 70W and then produced 10 pieces of 7W x 10. We also performed winding simultaneously and finished with a lap wrap.

• Piping Materials

This catalog is a comprehensive catalog (digest version) featuring products from Daiko Co., Ltd., which manufactures and sells various types of gaskets and industrial products. Our company processes gaskets and packing using various machines, including one of Japan's largest water jet cutting machines (hydro cutting machines). We have a wide range of items, including joint sheets, rubber, sponge, and resins. We also offer our original brand non-asbestos joint sheet "D-6000" and other products tailored to domestic manufacturers such as Nichias and Bulker. Please utilize the fluid compatibility charts and necessary information for selecting piping and valves! 【Featured Products (Partial)】 ■ Non-asbestos joint sheet D-6000 ■ Graphite spiral wound gasket D-1000 ■ Teflon cushion gasket D7000 ■ SGM soft Teflon gasket ■ Rubber packing, etc. *This PDF is a digest version. If you need the full version, please feel free to contact us.

• Other processing machines
• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We offer a variety of processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 For a full EPDM rubber gasket, we adhered rubber sheets in an L-shape, and for the inside of the bolts, we cut round cords in half and adhered them to create a rib-like structure. Achieving precise half-cutting of the round cords is challenging, but we finished the processing with a tolerance of about 0.1 using a slitter.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize a variety of processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed a neoprene sponge sheet into four parts using a water jet, bonded the corner sections, and shaped it into a frame. This method results in less material waste compared to processing as a single piece, allowing for cost reduction. We process using CAD data, enabling precise machining of bolt positions and other details.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Examples】 We cut a neoprene rubber sheet to the required length using a water jet and processed it into a cylindrical shape with adhesive. The smaller the diameter, the more material rebound occurs, increasing the difficulty of production. When processing as a single piece, it requires processing from a rubber sheet with a thickness of 60mm, and the machines that can handle this are limited. If adhesive processing is possible, we can offer it at a low cost.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We manufactured an O-ring with a wire diameter of Φ24 x IDφ1646 by adhesive processing from round cord. The adhesive surface was cut at an angle to increase the bonding area, allowing for a stronger adhesion. Although the wire diameter was thick and the size was large, it was finished to the specified dimensions. O-rings are typically produced through heat vulcanization compression molding, but we may also process them by adhesive methods from round cord based on customer requests.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters and plotter and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 〇 T9007LC 3mm PTFE with filler was processed using a plotter. By using a special ultra-hard blade for processing, the cross-section of the gasket is finished beautifully. We can accommodate processing ranges up to 1500W, allowing for large-diameter processing to be completed in a short delivery time. This is a high-performance gasket that is resistant to heat up to 200°C and has low creep.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters and plotters, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We performed width cutting on 3mm neoprene rubber (50WX10M) using a slitter. This machine specializes in processing rubber strips. The width setting can be easily changed by adjusting the position of the blade. Depending on the material, processing of over 10M is also possible.

• Piping Materials

Generally, the tightening force required to seal internal fluids is indicated by Wm1 and Wm2 as specified in JIS B 8265.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jets (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Examples】 We manufactured Teflon (PTFE) ring shapes and gaskets for heat exchangers. The size is over 1000mm in diameter, but with a water jet, we can achieve tolerances of approximately ±0.2 to 0.3. For heat exchangers, we can also digitize intricate details such as R processing on branch parts using CAD, allowing us to produce gaskets that fit the flange size.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We use various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines), plotters, and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Example】 We processed a cross-shaped packing measuring 18WX18L from 50° 1t silicone rubber. The water jet is a large machine with dimensions of W4000 x L5000mm, but we are also skilled in processing small diameters.

• Piping Materials

There are various factors that can cause leaks when using gaskets, but this time I will explain about permeation leaks. ◆ What is permeation leak? 　〇 A phenomenon where the sealing material is permeated, causing the internal fluid to leak. ◆ Countermeasures 　〇 Increase the density of the sealing material by compressing it with tightening force to fill the tiny gaps inside the sealing material. ◆ Requirements for sealing materials 　　〇 Density 　　〇 Resistance to permeation 　　〇 Applying rubber or resin-based paste materials to the inner diameter end face is also effective.

• Piping Materials

Our company has been processing and selling gaskets, packing, and industrial products for over 45 years. We utilize various processing machines, including one of Japan's largest water jet cutters (high-pressure cutting machines) and plotters and press processing, to propose products to our customers. Please feel free to contact us for any inquiries regarding processing. 【Processing Examples】 We processed a cross-shaped packing of 18WX18L using silicone rubber 50°1t. The water jet is a large machine measuring W4000X L5000mm, but we are also skilled in processing small diameters.

• Piping Materials