ダイコー Product Lineup

■Overview of Processing Example Product Name: Branch-Type 2-Pass Gasket Dimensions: Outer Diameter φ173 × Inner Diameter φ127 (P153) This processing example involves the manufacturing of a branch-type 2-pass structure gasket used for piping and equipment. To ensure dimensional accuracy and shape reproducibility for the 2-pass shape with internal partitions and branch-type outer shape, water jet processing has been adopted.

■Overview of Processing Example Product Name: Gasket for Water Level Gauge Dimensions: 10/34W × 346/370L This processing example involves the production of a gasket for a water level gauge used in thermal equipment. In addition to its elongated shape, it features openings with rounded ends, requiring uniform dimensional accuracy throughout its length. Given that the operating environment is in a high-temperature range, T-6750-S material was selected for its heat resistance and shape stability. Water jet cutting was employed for processing, allowing for the reproduction of the shape as per the drawings without imparting thermal effects or stress to the material.

■Overview of Processing Example Product Name: Clutch Cover Gasket Dimensions: 1.5t × φ355 × φ322 (with P350 holes) This processing example involves the production of a gasket for a clutch cover using D6000 (1.5t). In addition to the outer and inner diameters, the inclusion of P350 bolt holes required simultaneous precision in hole positioning and shape. In this application, "compliance of the joint surface" and "ease of alignment during assembly" are crucial as they directly relate to oil sealing performance. Therefore, the drawing shape was converted into processing data, and the outer circumference, inner circumference, and hole drilling were all processed together using water jet cutting. By processing without affecting the material with heat, the reproducibility of the shape and the quality of the end face are stabilized. As a result, conditions that facilitate alignment during assembly and ensure stable finishing of the sealing surface have been secured. Furthermore, the adoption of D6000 contributes to both practicality and cost advantages for oil seal applications.

■Overview of Processing Example Product Name: Adhesive Silicone Rubber Strip Dimensions: 1t × 5W × 190L With a narrow width of 5mm and a total length of 190mm in a linear configuration, stable processing accuracy was required to minimize dimensional variation and distortion during cutting. In particular, adhesive materials are prone to dragging of the adhesive layer and irregularities on the cutting surface during blade processing, which can lead to unstable quality. In this case, by adopting water jet processing, a stable cut of the linear shape was achieved without applying heat or mechanical stress. This helped to suppress the peeling of the adhesive layer and enabled component supply that considered positioning accuracy and workability during the attachment process.

■Overview of Processing Example Product Name: Eptsealer Corner Cut Packing Dimensions: 170□ × φ83 Specifications: EC110 (5t) + EE1010 (25t) with tape This case involves the processing of a corner packing made from EPDM foam material "Eptsealer." It has a structure with a central circular opening and is used for housing sealing applications. Due to the tape-attached specification, accuracy in the attachment position and stability of the outer dimensions were required. By using water jet processing, high-quality cutting surfaces with minimized deformation were achieved even with flexible foam materials.

■Overview of Processing Example Product Name: Frame Gasket with Inner and Outer R Dimensions: Inner and Outer R Shape / Frame Shape (as specified in the drawing) This example involves the processing of an NBR rubber gasket used in the opening of a device. The inner and outer perimeters have R specifications, requiring interference prevention during assembly and stable sealing performance. By adopting water jet processing, which excels in shape reproducibility without the use of a die, we have manufactured it with precision as per the design.

"The rubber melts due to heat." "The cross-section gets charred and hardens." "The material is too large to fit in the machine." In the processing of industrial gaskets and seals, the game-changing solution to these challenges is "water jet processing." However, while the technology itself is known, the extent to which it can handle materials of "what scale" and "how thick" varies greatly from one processing company to another. In this article, we will explain the "core" of the water jet technology and the "overwhelming equipment capabilities" of Daiko Co., Ltd. that maximize its potential. *For detailed content of the column, please refer to the related links. For more information, please download the PDF or feel free to contact us.*

■Overview of Processing Example Dimensions: 50W × 80L (Thickness 3t) This example is a processing case of NBR rubber gaskets. The configuration consists of a plate shape with outer dimensions of 50W × 80L, featuring two 14φ holes in the center and four 9φ holes around the perimeter. For the small diameter hole drilling process, we adopted water jet processing because the accuracy of the hole diameter and the reproducibility of the hole position are directly linked to assembly accuracy. This method allows for cutting without thermal impact, thereby suppressing deformation of the rubber material and edge irregularities, ensuring stable dimensional accuracy. As a result, it prevents positional misalignment during bolt insertion and contributes to stable sealing performance at the equipment fixation points. ■Product Features (NBR Rubber) NBR (Nitrile Rubber) has excellent oil resistance and is an ideal synthetic rubber for seals in fuel oils and lubricants. It also exhibits high mechanical strength and wear resistance, making it widely used in O-rings, gaskets, hoses, and more. However, its weather resistance and ozone resistance are low, making it unsuitable for outdoor use, and it primarily excels in indoor hydraulic and pneumatic equipment.

Overview of Processing Example Product Name: NBR Rubber Sheet with Slits Dimensions: t1 × 20W × 71L (φ4-2) This processing example involves the production of a rubber component with slits, used for parts in industrial equipment. In addition to the long shape, multiple holes and slit processing were specified, requiring positional adjustability and dimensional reproducibility during installation. The client is an industrial equipment manufacturer. To ensure freedom of shape and processing accuracy without using a die, water jet processing was adopted, achieving stable quality in production. Product Features (NBR Rubber) 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, widely used in O-rings, gaskets, hoses, and more. However, due to its low weather resistance and ozone resistance, it is not suitable for outdoor use and is primarily utilized in indoor hydraulic and pneumatic equipment.

Dimensions: 81W × 96L (Plate thickness 3t) This case is an example of a manufactured plate gasket made of NBR rubber with C chamfering (C2) processing. It has a shape of 81W × 96L, with three φ10 holes and six φ5 holes arranged in the structure. Since hole position accuracy and processing reproducibility are important for multiple diameters of hole processing, water jet cutting was adopted. This method allows for processing without thermal impact, ensuring a uniform cutting surface while maintaining the material's elastic properties. Furthermore, the C chamfering processing helps to reduce interference during assembly, contributing to improved workability and stable sealing performance. ■ Product Features (NBR Rubber) NBR (Nitrile Rubber) has excellent oil resistance, making it an ideal synthetic rubber for seals in fuel oils and lubricants. It also has high mechanical strength and wear resistance, and is widely used in O-rings, gaskets, hoses, etc. However, its weather resistance and ozone resistance are low, making it unsuitable for outdoor use; it is mainly utilized in indoor hydraulic and pneumatic equipment.

Processing Case Overview Product Name: Adhesive-Backed Irregular Gasket Dimensions: Outer Diameter φ30.6 × Inner Diameter φ21 (Thickness 2t, Mounting Hole φ3, PCD 48) This processing case involves the manufacturing of adhesive-backed irregular gaskets used for equipment. To ensure dimensional accuracy and shape reproducibility for the irregular shape and mounting holes, water jet processing has been adopted. Product Features (EPDM Rubber) EPDM (Ethylene Propylene Diene Monomer) rubber is extremely excellent in weather resistance and ozone resistance, making it a rubber that does not easily deteriorate even in outdoor environments exposed to ultraviolet rays and rain. It is resistant to water and chemicals, but it is weak against mineral oils and cannot be used with them. Leveraging its high durability, it is widely used in construction waterproof sheets, window frames, and plumbing gaskets, among others.

Overview of Processing Example Product Name: Frame-Shaped Seal Material Dimensions: 196W × 296L, Thickness 5t, φ12 Holes × 10 This example involves the production of seal material used around openings in industrial equipment. The frame shape and multi-point hole configuration required uniform compression and stable airtightness. By adopting water jet processing without using a die, shape accuracy and reproducibility are ensured. Product Features (EE-1010 (Eptsealer)) Seal material made from EPDM rubber, which has excellent weather resistance among foamed materials, using semi-continuous foaming. It has excellent water-tight and air-tight properties, and due to its flexible material, it can be compressed for use. It is also highly effective as soundproofing and deadening material in vehicles.

Overview of Processing Example Product Name: Small Diameter Gasket Dimensions: Outer Diameter 64φ × Inner Diameter 43φ × Thickness 6t This example involves the production of a small diameter gasket used at the upper part of a guide tube. In addition to the small outer and inner diameter dimensions, mass production capability was required. As a product for the industrial equipment sector, stability of dimensions and reproducibility of processing are emphasized, assuming use in high-temperature environments. By adopting laser processing, which ensures precision without the use of molds, stable quality is maintained even during mass production. Product Features (D5800) Exhaust gases, combustion gases, hot air, etc., duct flanges, manhole gaskets. Biodegradable fiber cloth compliant with RCF regulations is used. There are processing methods such as sewing, and large diameter processing is possible. It is used for high-temperature duct seals.

■Overview of Processing Example Dimensions: φ234 × φ165 P190 This case is a processing example of the D5800 graphite-filled gasket used in the flange part of electric furnace equipment. It features a ring shape with six φ14 mounting holes, requiring assembly precision. By adopting laser processing, dimensional reproducibility of the inner and outer diameters and hole pitch is ensured, contributing to stable construction on-site. ■Product Features (D5800) This gasket is made by applying natural rubber to glass cloth and molding it into a specified shape. It has excellent thermal insulation properties and is environmentally friendly as it is non-asbestos. Various processing methods, including sewing, are available, allowing for large diameter processing. It is used for high-temperature duct sealing.

Overview of Processing Example Product Name: Flange Gasket for High-Temperature Ducts Dimensions: Equivalent to JIS 10K-80A (Thickness 4mm) This example involves the processing of a gasket for duct flanges used in high-temperature exhaust equipment. Dimensional accuracy and positional reproducibility during installation were required for the circular shape, which includes bolt holes. By adopting laser processing without molds for products related to piping and equipment, we enable shape modifications and small lot production while ensuring stable processing quality. Product Features (D5800RCF) Exhaust gases, combustion gases, hot air, etc., for duct flanges and manhole gaskets. Uses biocompatible, biodegradable fiber cloth that complies with RCF regulations. Various processing methods, including sewing, are available, allowing for large-diameter processing. Used for high-temperature duct seals.

Processing Case Overview Product Name: Glass Cloth Gasket Dimensions: φ155 × φ90 (PCD130, 15φ-4) This case involves the processing of a circular gasket made from glass cloth material (3.2t with tape). In addition to outer and inner diameter processing, it includes bolt holes specified by PCD, and was manufactured for sealing applications in industrial equipment flanges. To maintain the unique layered structure of the fiber material, water jet processing, which allows for non-contact machining, was adopted, achieving both dimensional accuracy and reproducibility. Product Features (Glass Cloth) 〇D5400 This gasket is made by applying natural rubber to glass cloth and molding it into a specified shape. It has excellent thermal insulation properties and is environmentally friendly as it is non-asbestos. There are various processing methods, including sewing, allowing for large diameter processing. It is used for high-temperature duct sealing.

■Overview of Processing Example Product Name: NBR Rubber Sheet with Slits Dimensions: t1 × 20W × 71L (φ4-2) This processing example involves the production of a rubber component with slits, used for parts in industrial equipment. In addition to the long shape, multiple holes and slit processing were specified, requiring positional adjustability and dimensional reproducibility during installation. The client is an industrial equipment manufacturer. To ensure freedom of shape and processing accuracy without using a die, water jet processing was adopted, achieving stable quality in production.

■Overview of Processing Example Product Name: Glass Cloth Gasket Dimensions: 4.8t × 140W × 180L Uneven Frame This example is a glass cloth gasket manufactured for flange parts of equipment. The design includes an uneven frame shape and specified inner and outer radii, with an emphasis on assembly compatibility and shape reproducibility. Water jet processing is used to minimize the processing difficulty inherent to fiber materials while achieving stable dimensional accuracy and finish.

■Overview of Processing Example Dimensions: 150W × 712L (Thickness 2t) This example involves the production of a long gasket processed with tape using D5400 glass cloth material. It features a strip shape of 150W × 712L with six 14φ holes arranged to improve positioning during installation and enhance work efficiency. In long shapes, linear accuracy and hole pitch accuracy are crucial, so water jet processing was adopted. This method allows for processing without thermal impact, ensuring a uniform cutting surface without compromising material properties. The tape-equipped specification facilitates temporary fixing, contributing to improved workability on-site. ■Product Features (D5400) This gasket is made by applying natural rubber to glass cloth and molding it into a specified shape. It has excellent thermal insulation properties and is environmentally friendly as it is non-asbestos. Various processing methods, including sewing, are available, allowing for large diameter processing. It is used for high-temperature duct sealing.

Processing Case Overview Product Name: Glass Cloth Gasket Dimensions: φ526 × φ450 (PCD496) This case is an example of processing a large-diameter glass cloth gasket used in electric furnace-related equipment. We adopted water jet processing without using a mold to meet specifications that require circumferential accuracy and hole position accuracy. While utilizing the material properties designed for use in high-temperature environments, we ensure stable dimensional reproducibility and assembly compatibility. Product Features (Glass Cloth) 〇D5400 This is a gasket made by applying natural rubber to glass cloth and molding it into a specified shape. It has excellent thermal insulation properties and is environmentally friendly as it is non-asbestos. There are processing methods such as sewing, allowing for large-diameter processing. It is also used in high-temperature duct sealing applications.

Processing Case Overview Product Name: Ring Gasket (R5 U-shaped Cut) Dimensions: φ460×φ361 (t6.4) This processing case involves a large-diameter ring gasket used in wind power-related equipment. Due to its special shape, which includes R5 U-shaped notches and jigsaw cuts, water jet processing was adopted instead of mold processing. By using non-contact cutting, stable processing accuracy is ensured even for the thick D5400, leading to improved fit during assembly and enhanced workability. Product Features (D5400) This gasket is made by applying natural rubber to glass cloth and molding it into the specified shape. It has excellent thermal insulation properties and is environmentally friendly as it is non-asbestos. Various processing methods, including sewing, are available, allowing for large-diameter processing. It is used for high-temperature duct sealing.

"The rubber melts due to heat," "the cross-section gets charred and hardens," "the material is too large to fit in the machine." In the processing of industrial gaskets and seals, the game-changer that solves these issues all at once is "water jet processing." However, while the technology itself is known, the extent to which it can handle materials of various thicknesses and scales varies greatly from one processing company to another. In this article, we will explain the "core" of the water jet technology and the "overwhelming equipment capability" of Daiko Co., Ltd. that maximizes its potential. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us directly.*

The challenges of "cutting processing" in manufacturing sites always lie in balancing "cost," "delivery time," and "accuracy." While dedicated mold presses offer high precision, they come with high initial costs and long lead times. On the other hand, hand cutting and cutting plotters have no initial costs, but they tend to have longer takt times during mass production, resulting in higher unit prices. A suitable solution to this dilemma is the long-established technique known as "Thompson processing (die cutting)." This article will thoroughly explain the basics of Thompson processing, why Daiko is committed to "in-house mold production," its technical advantages, and its ability to handle a wide variety of materials such as joint sheets, rubber, sponge, and PTFE. *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.

■Overview of Processing Example Product Name: Natural Rubber Gasket for Light Valve Dimensions: As per drawing This processing example involves the fabrication of a natural rubber gasket used in light valves. The structure features bolt holes for mounting on the outer perimeter and an arc-shaped opening on the inside, requiring reliable sealing performance while following the opening and closing motion of the valve. The client's industry is related to industrial machinery dealing with valves and piping equipment. This product is a natural rubber gasket used for light valves, designed with an emphasis on compatibility and resilience at the valve seat. Water jet processing was employed for fabrication. Since natural rubber is prone to deformation during cutting, a non-contact processing method was chosen to achieve shape reproduction as per the drawing and stable processing accuracy. This helps minimize positional misalignment during assembly, leading to stable assembly characteristics and reproducibility.

Processing Case Overview Product Name: Red Fiber Long Hole Processed Part Dimensions: 45W × 70L Material: Red Fiber 1t This case involves the production of a part made from rectangular-shaped red fiber material, featuring a combination of round holes and long holes, using laser processing. It includes a long hole shape designed for adjustment of the mounting position, accommodating mounting conditions that cannot be met with standard holes.

■Overview of Processing Example Product Name: Fluororubber Frame-Shaped Gasket Dimensions: 188W × 748L (Frame Width 38W) This processing example involves the fabrication of a frame-shaped gasket made from fluororubber material. The long, elongated outer perimeter is equipped with multiple mounting holes, and the interior features an opening, creating a frame structure with specified R-shaped inner corners. To avoid stress concentration during assembly, the product requires shape reproducibility and precision of the inner R. The client's industry is related to thermal equipment and industrial devices. The characteristics of this product include its use of fluororubber for chemical and heat-resistant applications, and the design that incorporates an R shape on the inside of the frame, which takes into account the sealing area's fit and durability. The processing method employed is water jet cutting. Since fluororubber tends to show edge irregularities with blade processing, non-contact processing is used to fabricate the inner R shape according to the specifications, thereby stabilizing shape accuracy and reproducibility.

Processing Case Overview Product Name: Circular Multi-Hole Gasket Dimensions: Outer Diameter φ300 / Inner Diameter φ228 Material: PTFE 1t This case involves the processing of a circular gasket made of PTFE material, featuring multiple bolt holes arranged with an uneven pitch. The material was specified with a focus on chemical resistance, and the non-standard hole arrangement was addressed using water jet cutting. Product Features PTFE PTFE (polytetrafluoroethylene) is a high-performance material with exceptional heat and chemical resistance. It withstands almost all acids and alkalis, and has minimal leaching of impurities, making it widely used in industries that require contamination-free materials, such as food, pharmaceuticals, and chemical plants. It also possesses non-stick and insulating properties, providing reliable performance even in harsh environments. Processing Method (Water Jet Cutting) Water jet cutting is a method that uses high-pressure water to cut materials. It processes by spraying high-pressure water. The injection nozzle can be changed according to the processing material, allowing for the production of high-quality products in a short time. Additionally, the dimensional tolerances achieved through traditional manual processing are significantly improved, resulting in stable processing accuracy. The taper of the cut surface from press processing can also be improved with water jet cutting.

Overview of Processing Example Product Name: R-shaped Irregular Gasket Dimensions: 479 × 753 (Reference) Material: No.6500 0.8t This case involves the production of a gasket with an irregular outer shape that includes an R shape and a multi-hole configuration, made from No.6500 joint sheet using water jet processing. For this project, which required precision in the outer shape including curved sections and accuracy in hole positioning, stable shape reproduction was achieved through data processing.

■Overview of Processing Example Product Name: Truck Oval Gasket Dimensions: 3t × 160W × 410L Material: EPDM Rubber Processing Method: Water Jet Cutting This case involves the production of an EPDM rubber gasket based on an oval shape (truck oval), featuring multiple through holes arranged at the inner opening and outer circumference, using water jet cutting. Due to the multi-hole configuration and curved shape, the project required dimensional accuracy and assembly compatibility that standard products could not meet, but stable shape reproduction was achieved through data processing.

■Overview of Processing Example Product Name: Irregular Rubber Parts Dimensions: 1t × 70W × 600L Material: CR Rubber This case involves the production of irregular rubber parts with an asymmetrical shape that includes width variations and diagonal cuts, based on a long, strip-like form, using water jet processing. The structure is equipped with multiple through holes, intended for positioning and fixing applications within equipment and devices. Stable shape reproduction was achieved through data processing for shapes that cannot be accommodated by standard products, contributing to a reduction in adjustment work during assembly.

■Overview of Processing Example Product Name: Gasket for Large Diameter Flange Dimensions: Outer Diameter 985φ × Inner Diameter 756φ (P918/22φ-42) This processing example involves the manufacturing of gaskets used for large diameter flanges. The client operates in the plant and equipment sector, requiring stable dimensional accuracy and hole position reproducibility despite the large outer and inner diameters and the presence of numerous bolt holes. T1120 material was used, and by adopting water jet processing, we achieved stable machining of the outer shape and hole arrangement according to the drawings without compromising the material properties. This facilitates easy alignment during assembly and contributes to workability and sealing performance.

■Overview of Processing Example Product Name: PTFE Gasket for Water Supply Dimensions: 3t Water Supply 150A FF Material: PTFE Processing Method: Press Processing This processing example involves the production of a PTFE gasket used for the flange part of water supply equipment. The product features a full-face shape compatible with a 150A flange, with bolt holes arranged evenly. Since it is used for water supply applications, PTFE, which has low impurity leaching and excellent chemical resistance, is employed as the material. As this was a project intended for mass production, press processing was selected to achieve both dimensional reproducibility and processing efficiency. As a result, stable dimensional accuracy is ensured while minimizing positional misalignment during assembly, achieving reliable sealing performance.

■Overview of Processing Example Product Name: Uneven Hole Gasket Dimensions: t1 × Outer Diameter φ80 × Inner Diameter φ45 (P61 - Uneven Holes) Material: NBR Rubber Processing Method: Water Jet Cutting This processing example involves the production of an NBR rubber gasket with multiple holes arranged unevenly. It is used as a component part for industrial machinery, requiring dimensional accuracy to ensure reliable assembly even with non-uniform hole diameters and positions. By using water jet cutting, it achieves the reproduction of the hole arrangement and shape as per the design without the use of molds.

■Overview of Processing Example Product Name: 3-Pass Gasket Dimensions: Outer Diameter φ990 × Inner Diameter φ960 × t3 This processing example involves the machining of a gasket with a 3-pass structure that divides the flow path. The client operates in the piping and equipment-related field. The product specifications require a configuration that includes a large-diameter ring shape along with internal partition shapes, necessitating reproducibility of the flow path shape and continuity of the seal line. The product feature is the ability to finish the outer shape, inner diameter, and internal shape as a single unit while accommodating the flow path division due to the 3-pass structure. The machining method selected was water jet cutting. This method allows for machining without thermal impact, making it easier to ensure shape reproducibility even for complex shapes, and enables machining of holes, inner diameters, and outer shapes according to the drawings. The effects of the machining include stable dimensional reproducibility of the internal shapes, ensuring assembly compatibility, and contributing to uniformity in finished quality.

■Overview of Processing Example Product Name: MT Plate Stainless Steel Decorative Plate (Two-Part Shape) Dimensions: 250φ × 110φ This processing example is a decorative plate made of stainless steel that covers the piping penetration areas in walls and floors. To allow for retrofitting even after the piping has been installed, a two-part structure with a circular shape has been adopted. The client’s industry is related to building equipment and plumbing construction. In the construction site, both ease of installation without removing the piping and aesthetic finish were required. The features of this product include retrofitting capability due to the two-part structure and a shape accuracy that minimizes the visibility of gaps and steps after installation. Laser processing was used as the processing method. Non-contact processing allows for high-precision machining of the straight and arc sections of the split surfaces, reducing discomfort during assembly. As a result, this leads to improved workability and stabilization of appearance quality.

■Overview of Processing Example Product Name: SUS304 Nameplate Dimensions: 2t × 30W × 150L (Mounting Hole φ15×1) Material: SUS304 Processing Method: Laser Processing This processing example involves the manufacturing of a SUS304 nameplate used in industrial machinery and equipment. Mounting holes were created in an elongated plate shape, and processing was required in a letter-cut shape to display part numbers and identification information. The client's industry is related to industrial machinery and equipment. Since the nameplate is permanently attached to the equipment, SUS304 material, which has excellent corrosion resistance, was adopted, and it was emphasized that the displayed content should remain legible over a long period. The product features high visibility due to the letter-cut processing and a unified shape that includes the mounting holes. Laser processing was selected as the method. Laser processing allows for non-contact cutting, which minimizes distortion even in thin SUS304 sheets and accurately reproduces fine letter outlines and hole shapes as per the data. As a result, the variation in letter shapes has been reduced, contributing to the stabilization of mounting accuracy and appearance quality for the equipment.

■Overview of Processing Example Product Name: T1120 Steam Gasket Dimensions: 128 square (Center hole φ76, multiple bolt holes) Material: TOMBO No.1120 Processing Method: Water Jet Cutting The outer shape is square, featuring a large diameter center hole in the middle and multiple mounting bolt holes arranged around it. Since this product is used in steam lines, dimensional accuracy to ensure stable sealing performance and positional accuracy of the center hole and bolt holes are critical requirements. This product uses T1120 material, which emphasizes steam resistance, aiming to maintain stable performance even under steam conditions. Water jet cutting was selected as the processing method. Since T1120 contains fibrous materials, it tends to exhibit variability in edge quality and dimensional accuracy when processed with cutting tools. By using the non-contact method of water jet cutting, it became possible to reproduce the shape, including the center hole and multiple holes, according to the drawings while minimizing the load on the material. As a result, this contributes to stabilizing processing accuracy and improving assembly compatibility.

■Overview of Processing Example Product Name: Neoprene Sponge Frame Gasket (with Single-Sided Tape) Dimensions: 190W × 320L (20mm Wide Frame) This processing example involves the fabrication of a frame-shaped gasket made from neoprene sponge material. It features a rectangular outer shape with an inner opening in a frame structure, and multiple mounting holes are arranged around the perimeter. One side is adhered with adhesive tape, enhancing the ease of assembly. The client’s industry is related to industrial equipment and devices. The characteristics of this product include water resistance and cushioning properties due to the neoprene sponge material, as well as the combination of frame shape and single-sided tape structure, which balances temporary fixation and work efficiency. Water jet processing was adopted for the manufacturing method. Since sponge materials are prone to crushing and dimensional variation with blade processing, non-contact processing is used to accurately reproduce the outer shape, inner shape, and hole positions according to the drawings, ensuring stable shape accuracy even after tape application.

■Overview of Processing Example Product Name: Felt Gasket Dimensions: t9 × Outer Diameter φ160 × Inner Diameter φ54 (P110, 4 holes) This processing example involves the machining of a circular gasket made from felt material. In addition to the ring shape with outer and inner diameters, it features a structure with multiple mounting holes arranged in the circumferential direction, intended for applications such as cushioning, dust prevention, and sound absorption within equipment. Specifications require shape accuracy and reproducibility of hole positions. The client’s industry is related to industrial machinery. The characteristic of this product is its use as a gasket that takes advantage of the unique flexibility and porous structure of felt material. It is adopted to ensure compatibility with the counterpart components while protecting internal parts. The processing method employed is water jet cutting. Since felt material tends to fray and exhibit dimensional variations with blade processing, non-contact processing is used to cut the shape, allowing for stable machining of the outer diameter, inner diameter, and multi-hole shapes according to the drawings. This contributes to preventing positional misalignment during assembly and improving reproducibility.

■Overview of Processing Example Product Name: Frame Gasket (with Outer R) Dimensions: 250□ 25w Frame Material: NBR Rubber Processing Method: Water Jet Cutting This processing example involves the production of an NBR rubber gasket in a frame shape with an R shape on the outer periphery, used in equipment for industrial machinery. This product is utilized for sealing the opening of the equipment, requiring a wide sealing width due to the frame shape and ensuring both safety and ease of handling with the outer R shape. The client is from the industrial equipment manufacturing sector, where dimensional accuracy and shape reproducibility are critical requirements based on assembly with existing equipment. The R specification on the outer periphery is processed according to the drawing instructions, which is expected to prevent snagging at the corners and enhance the safety of the workers. The processing method adopted is water jet cutting. As it is a method that does not use molds, it allows for stable processing of the frame shape, including the R shape, while keeping initial costs low. As a result, reproducibility of the shape, including the outer R part, is secured, contributing to the prevention of interference during assembly and improving workability.

Product Name: NBR Rubber Frame Gasket (with Single-Sided Tape) Dimensions: t1 × 127W × 148L (Frame Width 18W, with Outer R) This processing example is an NBR rubber frame-shaped gasket used in the industrial equipment and machinery sector. The outer shape features a rectangular frame structure with an R specification on the outer perimeter, designed with safety and assembly considerations in mind. Additionally, the inclusion of single-sided tape enhances temporary fixation, improving work efficiency on-site. The product uses NBR rubber material, emphasizing oil resistance, and requires dimensional accuracy and stable quality.

"I want a large-diameter gasket that is not a standard product." "I want a one-off item precisely processed from the drawing." "I want to quickly confirm the tightening torque for the JIS flange needed for construction." "It takes time to find equivalent products from Nichias or Vulcan." These requests for "custom processing" and the concerns about "selecting standard products." At Daiko, a specialized manufacturer of gaskets and packing, both can be resolved with this one comprehensive catalog. Our company is a processing manufacturer of industrial products with over 50 years of experience. We go beyond mere product sales and respond to various challenges faced by our customers with our technical expertise. *For detailed content of the column, please refer to the related links. For more information, please feel free to contact us.

We would like to introduce a case where we created a decorative plate from plywood based on the customer's design data. First, we cut it to the specified dimensions using a laser cutting machine, and then we used a laser marker to draw a delicate and beautiful phoenix design. From cutting to the intricate artwork, we handled everything consistently with our laser processing machine. If you have requests such as "I want to create an original sign" or "I want to add a logo to a commemorative item," please feel free to consult with us. 【Case Overview】 ■ Material: Plywood ■ Product: Decorative Plate ■ Work Details ・Cut to specified dimensions with a laser cutting machine ・Draw a delicate and beautiful phoenix design using a laser marker *For more details, please download the PDF or feel free to contact us.

"Rubber molded products" enable simple vibration isolation for suspended equipment by combining rubber bushes and rubber washers. We offer a lineup of rubber molded products, including rubber bushes with bonded washers, as well as dimensionally stable "EPDM molded gaskets" and "ribbed gaskets." These products can be used for suspended support of air conditioning equipment, packaged air conditioners, fan coil units, ventilation systems, pumps, blowers, pipes, ducts, and other devices. [Features] - Enables simple vibration isolation for suspended equipment - Rubber bushes come with bonded washers *For more details, please refer to the PDF materials 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.