ダイコー Product Lineup

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

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.

• Processing Contract

The spiral wound gasket is a highly reliable gasket that demonstrates excellent sealing performance under high temperature and high pressure conditions. However, to maximize its performance, it is essential to keep several important points in mind from design to handling and installation. Here, we will explain the precautions to prevent unexpected leakage issues. *For detailed content of the column, please refer to the related link. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Is there a problem at your site regarding seals, such as 'leaks from old equipment flanges that won't stop,' 'difficulty in arranging gaskets for large-diameter tanks,' or 'urgent need for gaskets due to sudden troubles'? The PTFE soft gasket 'Nichias Soft Seal (TOMBO No. 9096 Series)' supports solving on-site challenges with its flexibility and ease of installation. *You can view the detailed content of the column through the related link. For more information, please download the PDF or feel free to contact us.

• Other machine elements

Nichias Soft Seal is a soft-type gasket made of 100% PTFE (fluororesin). It is very soft and can be easily installed on complex sealing surfaces, solving sealing challenges for various equipment. Due to its softness, it conforms well to somewhat rough flange surfaces and distorted sealing surfaces, demonstrating reliable sealing performance. *For detailed information, please refer to the related links. For more details, you can download the PDF or feel free to contact us.

• Other machine elements

The Gore Hyper Sheet Gasket, made entirely of clean, flexible, and highly chemical-resistant expanded polytetrafluoroethylene (ePTFE), demonstrates excellent sealing performance across a wide range of applications, from semiconductor manufacturing equipment to general industry. The Gore Hyper Sheet Gasket is a sheet gasket made of 100% ePTFE, combining flexibility, processability, heat resistance, chemical resistance, creep resistance, and cleanliness. Its high compressibility allows it to easily conform to somewhat rough flanges and uneven surfaces, ensuring a reliable seal. *For detailed information, please refer to the related links. For more information, you can download the PDF or feel free to contact us.*

• Other machine elements

Gasket paste is a very effective sealing aid that improves the sealing performance of gaskets and prevents burning onto flanges. However, to maximize its effectiveness, it is essential to use it based on correct knowledge. Here, we will introduce important points to consider when using gasket paste, as well as representative products. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Many leakage troubles from gaskets are not due to defects in the products themselves, but rather stem from "handling" factors such as design, storage, and tightening methods. To fully utilize the performance of gaskets and ensure safe plant operations, we will explain the important points that should be observed at each stage from design to installation. *For detailed content of the column, you can view it through the related link. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Is it leaking again from the packing? Despite multiple repairs, we can't identify the cause." Are such concerns causing work on-site to come to a halt? In this article, we will thoroughly explain the three main causes of packing leaks and provide specific countermeasures that can be practically implemented from the perspective of the site. We encourage equipment maintenance personnel and site leaders to make use of this information. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Other machine elements

In food factories and manufacturing lines, the gaskets used are very important components that are directly related to the safety of the products. If, by any chance, harmful substances migrate (leach) into the food due to the material of the gasket, it could lead to serious health hazards or product recalls. Therefore, gaskets that come into direct contact with food or may come into contact with it must meet the strict safety standards set by Japan's Food Sanitation Act. This article will clearly explain the important points for selecting safe gaskets that comply with the Food Sanitation Act. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Vortex gaskets are used in many plants and facilities due to their excellent sealing performance. However, to maximize their performance, proper product selection during the design phase and correct handling during installation are essential. This article comprehensively explains important precautions for using vortex gaskets. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Joint sheet gaskets are widely used as sealing materials in various fields of piping. However, to maximize their performance and ensure safe use, it is essential to select the appropriate type based on the fluid and operating conditions, as well as to carry out correct installation. This article explains the selection criteria for joint sheet gaskets, as well as important points to consider during installation and maintenance. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us.

• Other machine elements

The RoHS Directive (Restriction of Hazardous Substances Directive) established by the EU restricts the use of certain hazardous substances in electrical and electronic equipment, making it an unavoidable environmental regulation for manufacturers worldwide. "RoHS-compliant gaskets" use materials that guarantee the absence of these regulated substances and are adopted by many customers. *For detailed information, please refer to the related links. For more information, you can download the PDF or feel free to contact us.*

• Other machine elements

An asbestos joint sheet is a type of sheet-like gasket used at the flange of piping and the joints of equipment. Asbestos fibers, primarily made from heat-resistant, chemical-resistant, and strong asbestos, are used as the main raw material. Rubber, in the form of natural or synthetic rubber, is added as a bonding agent. This provides flexibility and sealing properties. Filler materials, along with other chemicals or fillers, are mixed in to enhance additional performance. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

• Other machine elements

The vortex gasket (spiral gasket) is a high-performance sealing material suitable for piping flanges under severe conditions such as high temperature and high pressure. Its unique structure allows for excellent sealing performance and durability. This page will clearly explain the basics of vortex gaskets and the "selection method" to choose the right product for your equipment, step by step. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Other machine elements

Gaskets are essential for flange connections in piping, but did you know there are two types called "FF" and "RF"? These two types have significantly different shapes and areas of sealing surfaces, and choosing the wrong one can lead to serious issues such as leaks. In this article, we will clearly explain the fundamental differences between FF gaskets and RF gaskets, their respective features, and how to choose the right one. *For more detailed information, you can view the related links. For further details, please download the PDF or feel free to contact us.*

• Other machine elements

Do you have any of these issues with leak prevention in PVC piping? "I tightened it too much to stop the leak, and the flange cracked." "The tightening varies by worker, leading to inconsistent construction quality." "I thought I tightened it well, but it's still leaking." Unlike metal, PVC piping cannot be tightened with excessive force. Therefore, standard sheet gaskets require a delicate balance of "not leaking, but not breaking from over-tightening," which always carries a risk of leakage. *For more details, you can view the related links. For more information, please download the PDF or feel free to contact us.

• Other machine elements

Gaskets and packing are both important "sealing materials" that prevent the leakage of liquids and gases from machinery and piping. However, the roles of these two are clearly different depending on the presence or absence of "movement" in the places where they are used. On this page, we will clearly explain the differences and correct applications of each, along with diagrams for better understanding. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Other machine elements

Asbestos-containing products in Japan were generally prohibited from manufacturing and use as of September 1, 2006, and disappeared from the market, with some exceptions. Furthermore, including products that had been granted a grace period, a complete ban was implemented on March 1, 2012. However, since regulations have been gradually strengthened, asbestos products that were manufactured and used in the past still remain in many of our familiar buildings and facilities. Here, we will provide a detailed explanation of the history of asbestos regulation and the measures currently required. *For more detailed information, please refer to the related links. For further inquiries, feel free to download the PDF or contact us.*

• Other machine elements

The RCF regulation is a regulation based on the revised Industrial Safety and Health Act that came into effect on November 1, 2015, aimed at preventing health hazards for workers handling Refractory Ceramic Fibers (RCF). As a result, RCF has been designated as a specific chemical substance (Category 2 controlled substance), and businesses are required to implement strict exposure prevention measures. *For more detailed information, you can view the related links. For further details, please download the PDF or feel free to contact us.*

• Other machine elements

Gaskets are sealing materials used at the joints of machinery and piping, primarily serving to prevent fluid leaks. In plant maintenance and machinery equipment, gaskets are extremely important components. However, improper selection or management can lead to serious accidents or production stoppages. If you have any concerns or requests regarding gaskets, please feel free to consult us. Based on our years of experience and expertise, we will do our utmost to support you in solving your challenges. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Other machine elements

In the maintenance of piping flanges, "electrolysis" is a serious issue that can shorten the lifespan of equipment and potentially lead to significant leakage accidents. Particularly, caution is required in piping lines that combine different types of metals. This page provides a detailed explanation of the mechanisms behind electrolysis and effective "insulation" measures to prevent it. *For more detailed information, you can view the related links. For further details, please download the PDF or feel free to contact us.*

• Other machine elements

We would like to introduce the 'TOMBO No.9007LC' that we handle. This product was developed to prevent the creep phenomenon, which is a weakness of PTFE. It has a usage temperature range of -100℃ to 200℃ and a maximum operating pressure of 3MPa (30K). Please feel free to contact us when you need assistance. 【Features】 ■ Developed to prevent the creep phenomenon, which is a weakness of PTFE ■ Excellent heat resistance *For more details, please download the PDF or feel free to contact us.

• Sealing

We would like to introduce our "Transparent and Two-Color Gauge Glass" that we handle. Using our own processing equipment and abundant inventory, we can accommodate orders for just the packing or changes in the type of packing. Please feel free to consult us regarding materials. 【Lineup (partial)】 ■No.0/90mm ■No.1/115mm ■No.2/140mm ■No.3/165mm ■No.4/190mm ■No.5/220mm *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments
• Glass

We would like to introduce the "Reflective Gauge Glass" that we handle. Using our own processing equipment and abundant inventory, we also accept orders for just the packing or changes in the type of packing. Please feel free to consult us regarding materials. 【Lineup (partial)】 ■No.0/90mm ■No.1/115mm ■No.2/140mm ■No.3/165mm ■No.4/190mm ■No.5/220mm *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments
• Glass

The "Omron BS-1" is an electrode holder component for checking the water level in a tank. It can be used for applications involving wastewater, saltwater, acidic solutions, high temperatures, and high pressures. Please feel free to contact us when you need assistance. 【Specifications】 ■ Operating temperature: 250℃ ■ Operating pressure: 1.96MPa *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

We would like to introduce our "Eagle Mark Boiler Paint." By applying it to equipment such as boilers and pressure vessels, it forms a strong coating that serves as an insulating layer and exhibits corrosion prevention and rust-proofing effects. We also handle thinners. Please feel free to contact us. 【Features】 ■ Forms a strong coating that acts as an insulating layer ■ Prevents the progression of corrosion ■ Exhibits corrosion and rust-proofing effects *For more details, please download the PDF or feel free to contact us.

• paint
• boiler

We would like to introduce the "Magnesium Anode" that we handle. Through electrochemical action, it prevents corrosion of the hot water tank body. Magnesium dissolves in the hot water and protects the water contact area of the tank body. Please feel free to contact us when you need assistance. 【Other Related Component Lineup】 ■ Copper Gaskets / Metal Gaskets ■ Silicone Rubber Manhole Gaskets ■ Paste ■ Boiler Paint ■ Omron BS-1 *For more details, please download the PDF or feel free to contact us.

• Other metal materials

We would like to introduce the "Gasket Paste" that we handle. It is a sealing auxiliary agent used to enhance the sealing properties of gaskets and to prevent seizing. Please feel free to contact us when you need it. 【Other Related Component Lineup】 ■ Copper Gaskets / Metal Gaskets ■ Silicone Rubber Manhole Gaskets ■ Magnesium Anodes ■ Boiler Paint ■ Omron BS-1 *For more details, please download the PDF or feel free to contact us.

• Sealing
• Coating Agent

We would like to introduce our "Silicone Rubber Manhole Packing." It is designed for pressure vessels and is made of a flexible material, allowing for smooth installation. Please feel free to contact us when you need assistance. 【Specifications】 ■Dimensions: t10 φ360×φ330 *For more details, please download the PDF or feel free to contact us.

• Sealing

We would like to introduce the "copper packing and metal packing" that we handle. Metals are generally perceived as hard materials, but they are often used as sealing materials as well. The reason for their wide industrial use lies in the good balance between strength and ease of processing. Please feel free to contact us when you need assistance. 【Other related component lineup】 ■ Silicone rubber manhole packing ■ Paste ■ Magnesium anode ■ Boiler paint ■ Omron BS-1 *For more details, please download the PDF or feel free to contact us.

• Sealing

The "Vulcan Spiral Wound Gasket" is a product that maintains stable sealing performance over a wide range. Even under harsh conditions such as thermal cycles and pressure cycles, it suppresses leakage and damage. Its low adhesion to flanges makes cleaning easy, and replacement work can be carried out smoothly. Please feel free to contact us when needed. 【Features】 ■ Withstands high temperature and high pressure conditions, maintaining excellent sealing performance even with sudden changes in usage conditions. ■ Easy to clean due to low adhesion to flanges. ■ Allows for smooth gasket replacement work. *For more details, please download the PDF or feel free to contact us.

• Sealing