ダイコー Product Lineup

In a line handling strong acids and strong alkalis, the deterioration and leakage of gaskets occur frequently." "With glass-lined flanges, it is impossible to apply sufficient tightening force, resulting in unstable seals." "Every time maintenance is performed, we struggle to peel off gaskets that have adhered to the flanges." …These are serious sealing issues that arise daily in demanding environments such as chemical plants and pharmaceutical and food factories. To fundamentally solve these challenges, a high-performance sealing material that embodies the philosophy of "the right material in the right place" in its ultimate form is Nichias Corporation's "TOMBO No.9010" (Naflon PTFE cushion gasket), commonly known as the "wrapped gasket." This article will delve into the three significant benefits that this high-performance composite gasket brings to the field, how it can resolve the challenges you face, and provide specific guidelines for selecting the optimal product from a wide range of options, explained thoroughly from a professional perspective. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us directly.

• Sealing

"Which is more suitable for our steam line, GR or NA?" "Is an inner ring necessary for this flange, or not?" "How should I specify this complex shape for the heat exchanger?" The Vortex Gasket, renowned as the "last line of defense" in sealing high-temperature and high-pressure lines, boasts immense trust. However, in exchange for its high performance, the selection process is extremely complicated, causing many field personnel to struggle. Incorrect selection can lead not only to increased costs due to over-specification but, in the worst case, could result in serious leakage incidents. This article does not praise a specific product. Using Nichias Corporation's "Vortex Gasket" as a subject, it serves as a comprehensive guide to explain a practical thought process (selection flow) aimed at solving the challenge of "complex gasket selection" that you face in the field. *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

Under extreme conditions such as high temperature, high pressure, thermal cycles, and cryogenic environments, the "Vortex Gasket (spiral gasket)" is trusted as the last line of defense. Its high sealing performance is essential for the stable operation of plants. However, this high performance can only be safely realized by adhering to strict rules (precautions) from design to selection, installation, and maintenance. Are you aware of this? This article does not praise the performance of the Vortex Gasket. Instead, it focuses solely on the risks hidden behind its high performance and the "precautions for use" that everyone on site must absolutely know to avoid those risks. It serves as a practical safety manual. *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

"In high-temperature and high-pressure steam lines, the heat and pressure resistance of sheet gaskets has reached its limit." "In areas with significant temperature fluctuations (thermal cycles), gaskets quickly degrade and leaks occur." "We need a highly reliable sealing material that can handle everything from cryogenic liquefied gases to ultra-high temperature exhaust gases with a single structure." These are critical sealing challenges that arise in important lines, often referred to as the heart of the plant. In response to these challenges, Nichias Corporation presents the "Vortex Gasket" (spiral-shaped gasket), which combines the advantages of "metal" and "non-metal" to provide solutions. This article will delve into the three significant benefits that this semi-metal gasket brings to the field, how it can solve the difficult sealing challenges you face, and provide specific guidelines for selecting the appropriate product from a wide range of options, all explained from a professional perspective. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us directly.*

• Other machine elements

"Since it's a utility line, should we prioritize cost and go with the NA Vortex?" "No, since it's an important line, we should opt for the reliable GR Vortex." "Wait, this fluid is corrosive, so it has to be the Naflon Vortex, right?" The "Vortex Gasket," renowned as the "ultimate weapon" for sealing in high-temperature and high-pressure lines, boasts immense trust. However, among these, many field personnel are struggling with the appropriate differentiation of the three main models: "NA," "GR," and "Naflon (PTFE)," which are particularly in demand. This article does not unilaterally recommend specific products. Based solely on the official catalog information from Nichias Corporation, it aims to put an end to the eternal question of "Which of the three major Vortex models should we choose?" by thoroughly comparing and analyzing their performance, cost, and application ranges, providing a practical selection guide for everyone to confidently choose the "correct item" for their equipment. *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

"Which is more suitable for our line, black tight or clean tight?" "Is an inner ring necessary for this flange, or not?" "How should I specify this complex shape for the heat exchanger?" The "spiral wound gasket," renowned as the "last line of defense" in sealing high-temperature and high-pressure lines, boasts immense trust. However, in exchange for its high performance, the selection method is extremely complex, causing many field personnel to struggle. Incorrect selection can lead not only to increased costs due to over-specification but, in the worst case, could result in serious leakage accidents. This article does not praise a specific product. Using the Valqua "spiral wound gasket" as a subject, it serves as a comprehensive guide to explain a practical thought process (selection flow) to solve the challenge of "complex gasket selection" that you face in the field. *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

"On the high-temperature and high-pressure steam line, the soft gasket could not withstand and leaked. In equipment that repeatedly starts and stops, the gasket deteriorates with each temperature change and leaks. During maintenance, it takes half a day to remove the gasket that has burned onto the flange." These are critical sealing issues that occur in important lines that can be considered the heart of the plant. In response to these challenges, the "spiral gasket" from Vulcan Corporation offers a solution by combining the advantages of "metal" and "non-metal." This article delves into the three significant benefits that this high-performance semi-metallic gasket brings to the field, how it solves the difficult sealing challenges you face, and provides specific guidelines for selecting the appropriate product from a wide range of options, explained thoroughly from a professional perspective. *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

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

• Rubber
• Processing Contract

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

• Rubber
• Processing Contract

The "gland packing" is the heart of fluid equipment such as valves and pumps, ensuring that fluid leakage is reliably prevented. It goes without saying that this small sealing component plays an extremely important role in supporting the stable operation and safety of plants. However, even the highest performance gland packing can significantly degrade in performance with just one mistake in selection or handling, potentially leading to serious troubles such as leakage or equipment damage. In this article, we provide a "complete guide" to maximize the performance of gland packing and use it safely. We comprehensively explain the points of caution that professionals should practice, covering everything from design and selection to storage, installation, replacement, and disposal. *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

"When different metals are combined, one side becomes abnormally rusty." "Corrosion is spreading around the bolts of the piping flange." These are typical problems caused by "galvanic corrosion," which is frequently encountered in plants and machinery. Galvanic corrosion can be effectively prevented by correctly understanding its mechanism and taking appropriate measures. This article focuses on "electrical insulation," one of the many preventive measures against galvanic corrosion, and provides a comprehensive explanation of specific methods and how to select suitable insulation products according to site conditions. *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.*

• Other machine elements

"I want to select the best product for our equipment from a wide variety of industrial sealing materials." "I urgently need a single gasket with a special shape that is not in the standard specifications." "I want to procure high-quality processed parts in a short delivery time while keeping costs down." In various industrial settings, challenges like these arise daily, from stable plant operations to maintaining the performance of machinery. One answer to these challenges is Daiko Co., Ltd., a "processing manufacturer" of industrial products. Daiko not only sells products but also utilizes industry-leading processing equipment and years of technology and experience to provide appropriate solutions tailored to each customer's challenges. This article delves into the diverse range of products centered around gaskets and packing that the company takes pride in, as well as the overwhelming processing technology that supports them. By reading this article to the end, you will understand why Daiko is relied upon in many workplaces. *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 manhole packing of the boiler hardens due to heat and starts leaking immediately. The flange of the exhaust duct has a rough surface, making it impossible to seal with a sheet gasket. We want a safe non-ceramic heat-resistant material that complies with regulations." In high-temperature equipment such as power plants, waste incinerators, boilers, and drying furnaces, common gaskets quickly lose their performance due to heat. Responding to this demand is Daiko Co., Ltd., a manufacturer of industrial products that consistently produces "glass cloth gaskets" and "biodegradable cloth gaskets" in-house from raw materials to final products. This article will thoroughly explain why these heat-resistant cloth gaskets are suitable for sealing high-temperature areas, covering everything from the manufacturing process to the selection of materials based on application, as well as the limitations and precautions that should be known. *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.*

• Other machine elements

"We are looking for gaskets that are safe and cost-effective for piping lines of water and oil. We are considering alternatives to asbestos products, but we are concerned about processability and sealing performance. Due to sudden maintenance, we urgently need gaskets with special shapes." To meet these universal needs in "general piping" across various industries, Daiko Co., Ltd., a manufacturer of industrial products, confidently offers its original product, the "D6000 Non-Asbestos Joint Sheet." In this article, based on Daiko Co., Ltd.'s official comprehensive catalog, we will thoroughly explain why the D6000 continues to be chosen in many workplaces, its structure and outstanding performance, as well as the correct selection and usage methods to fully utilize its capabilities. *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

"Since it is a resin flange, it cannot be tightened with strong force." "There may be some distortion on the flange surface, and with a sheet gasket, the leakage does not stop." "While we want the elasticity of rubber in the chemical line, we also want to ensure chemical resistance." Such issues frequently arise in the sealing of piping flanges. In particular, with PVC piping and FRP piping that cannot withstand high tightening forces, as well as flanges that are glass-lined, it is not uncommon for rigid sheet gaskets to fail to provide sufficient sealing performance. What Daiko Co., Ltd., a manufacturer of industrial products, offers is the high-performance molded gasket "D-Packing," which has a unique cross-sectional shape. In this article, based on Daiko Co., Ltd.'s official comprehensive catalog, we will thoroughly explain why D-Packing can achieve "high sealing performance" with "low tightening force," the secrets of its structure, the differentiation between two types according to application, and the correct knowledge to maximize its capabilities. *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.

• Food and pharmaceutical standard seals and packing products

"In the line of strong acids and strong alkalis, the joint sheet deteriorates immediately." "At the dissimilar metal connections in the piping, corrosion due to electrolysis does not stop." "When using a PTFE gasket alone, the bolts loosened immediately and leaked." In chemical plants and precision equipment manufacturing lines, there are many situations where extremely high chemical resistance and electrical insulation properties are required, which cannot be addressed by common sealing materials. This article thoroughly explains why D7000 can simultaneously solve multiple challenges such as "corrosion resistance," "sealing performance," and "electrical insulation," as well as its unique hybrid structure and outstanding performance, along with the correct selection and usage methods to fully utilize its capabilities. *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

"This is a steam line with high temperature and high pressure that cannot be endured by a joint sheet." "I want to ensure a reliable seal for low-temperature fluids." "I need long-term stable sealing performance in a harsh environment where thermal cycles are repeated." Under such harsh conditions, which can be considered the heart of the plant, general gaskets are simply not sufficient. To meet the demands of these tough environments, Daiko Co., Ltd., a manufacturer of industrial products, has gathered its expertise to offer the high-performance semi-metallic gasket "D1000 Spiral Gasket." In this article, we will thoroughly explain why the D1000 Spiral Gasket is an indispensable presence in the important piping and equipment of plants, its intricate structure and outstanding performance, as well as the correct selection and usage methods to maximize its capabilities. *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.*

• Other machine elements

"Heat is leaking from the gap in the boiler door." "How should I seal uneven areas like the connection of the exhaust duct?" "I want to cover the piping with insulation material, but there are many bends, making it impossible to use flat insulation boards." In the world of high-temperature equipment, there are many situations where flexible sealing materials and insulation are essential, not only for flat flange surfaces but also for door joints, duct seams, and curved piping. These complex and three-dimensional areas, which cannot be addressed with rigid sheet gaskets, are managed by various woven products made from fibers. This article delves into the world of heat-resistant woven products provided by Daiko Co., Ltd., a manufacturer of industrial processing products. *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.*

• Sealing

"Fluid is leaking from the pump shaft and won't stop," "The valve opening and closing is stiff, and too much torque is applied," "Which packing can withstand high-temperature thermal oil?" In the stable operation of plants and factories, "gland packing," which prevents fluid leakage from valve stems and pump shafts, plays an extremely important role as a sealing component, even though it may not be noticeable. This article will unveil the diverse world of gland packing provided by Daiko. *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

"I would like to have just one gasket made according to the drawing." "I need a large-diameter resin plate, but I don't know where to order it." "I want to create a prototype, but the mold costs are too high, so I've given up." In the manufacturing field, finding the "appropriate materials" is just as important as the "processing technology" that determines "how to shape those materials." No matter how excellent the material is, without precise processing technology, it is nothing more than a simple sheet or round rod. In this article, we will focus on the "processing equipment," which is the core secret of why Daiko Co., Ltd., a manufacturer of industrial products, can meet diverse customer needs with "high quality, short delivery times, and low costs." We will thoroughly explain the capabilities and potential of each piece of equipment. *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.*

• Processing Contract

"A seal is needed that can withstand high-temperature and high-pressure environments, which cannot be tolerated by resin or rubber." "I would like to have a single high-precision metal shim manufactured as a structural component of the machine." "I want to obtain a complex-shaped metal plate in a short delivery time without making a mold." In the industrial world, "metal" is one of the fundamental yet highly reliable materials. Its overwhelming strength, rigidity, and heat resistance provide value that cannot be replaced by other materials. This article delves into the world of "metal processed products" handled by Daiko Co., Ltd., a manufacturer of industrial products, based on the company's comprehensive catalog. *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.*

• Processing Contract

"I want to reduce the weight of metal parts while maintaining sufficient strength." "I need parts that are resistant to chemicals, but I don't know which resin to choose." "I would like you to manufacture a complex-shaped resin part according to the drawing, starting from just one piece." In modern manufacturing, the role of "resin (plastic)" as an alternative material to metal and glass is becoming increasingly important. By combining unique properties such as lightweight, high strength, corrosion resistance, electrical insulation, and transparency, which metals do not possess, resin supports innovative product development across various industries, from electronics to automotive, construction, and medical fields. *For more detailed information, you can view the related links. For further details, please download the PDF or feel free to contact us.

• Engineering Plastics
• plastic

"I want to choose a reliable gasket for the plant's steam and cooling water lines while keeping costs down." "The joint sheet cannot withstand it, but the highest performance graphite filler is over-spec." "Is there a spiral gasket that is easy to install and economical for medium and low-pressure piping?" To ensure stable operation of the plant, it is essential to maintain not only the main process lines but also the utility lines such as steam, cooling water, and compressed air. In these lines, the balance between "cost performance" and "stable reliability" is prioritized over extremely high performance. To accurately respond to such on-site needs, Nichias Corporation has developed the standard semi-metallic gasket "TOMBO No. 1834R-NA Series (commonly known as NA Vortex Gasket)." *For more details, you can view the related links. For more information, please download the PDF or feel free to contact us.

• Sealing

"In high-temperature and high-pressure steam lines, leaks are absolutely unacceptable." "In cryogenic piping, a highly reliable gasket that can withstand thermal cycles is necessary." "For critical equipment in petrochemical plants, we want to maintain stable sealing performance over the long term." These are harsh sealing conditions that underpin the safety and productivity of the plant. In such environments, standard gaskets simply cannot compete. To meet these advanced requirements, Nichias Corporation has developed the pinnacle of spiral gaskets, the "TOMBO No. 1834R-GR series," by pooling its technological expertise. *For more details, please refer to the related links. For further information, feel free to download the PDF or contact us.*

• Sealing

"In the line of strong oxidizing acids, graphite gaskets are corroded." "A gasket certified for safety is required for piping handling pure oxygen." "We are looking for a high-seal material that does not contaminate fluids in the fine chemical manufacturing process." In environments such as chemical plants, semiconductor factories, and the medical and food sectors, extremely high cleanliness and resistance to strong corrosiveness that other materials cannot withstand are required. In such cases, even general gaskets, as well as high-performance graphite-based sealing materials, may be difficult to use. Under these harsh chemical conditions, the "TOMBO No. 9090 series," developed by Nichias Corporation, boasts overwhelming reliability as a last line of defense. *For more detailed information, please refer to the related link. For more details, you can download the PDF or feel free to contact us.*

• Sealing

"In the line of strong oxidizing acids, expanded graphite gaskets are compromised." "A gasket certified for safety is required for piping handling pure oxygen." "We are looking for a high-sealing material that does not contaminate fluids in the fine chemical manufacturing process." In environments such as chemical plants, semiconductor factories, and the medical and food sectors, extremely high cleanliness and resistance to strong corrosiveness that other materials cannot withstand are required. In such cases, not only general gaskets but even high-performance graphite-based sealing materials may be difficult to use. Under these harsh chemical conditions, the "Valqua No. 7590 Series," developed by Valqua, boasts overwhelming reliability as a last line of defense. *For more details, please refer to the related links. For more information, feel free to download the PDF or contact us.

• Sealing

"In high-temperature and high-pressure steam lines, leaks are absolutely unacceptable." "In LNG plants, reliable gaskets that can withstand thermal cycles are necessary for ultra-low temperature piping." "In critical equipment at petrochemical plants, we want to maintain stable sealing performance over the long term." These are harsh sealing conditions that underpin the safety and productivity of plants. In such environments, ordinary gaskets simply cannot compete. Developed to meet these advanced demands is the pinnacle of spiral gaskets, the "Vulcan No. 6590 Series (commonly known as Blacktight)." This article will thoroughly explain, based on Vulcan's official product documentation, why Blacktight boasts the highest level of reliability among various sealing materials, the secrets behind its overwhelming performance, and the correct selection and usage methods to maximize its capabilities. *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.*

• Sealing

"Why can spiral wound gaskets withstand high temperatures and high pressures?" "What do the differences between graphite, PTFE, and fillers signify?" "What should be considered when selecting the material for the hoop?" The "spiral wound gasket," which boasts overwhelming reliability under harsh conditions such as in power plants and petrochemical plants. The secret to its excellent sealing performance lies in its intricate spiral structure, which alternates between a V-shaped metal strip "hoop" and a cushioning material "filler." These two components serve as the skeleton and muscles of the gasket, and correctly understanding and combining their respective roles and materials is the key to effectively utilizing spiral wound gaskets. *For more detailed information, please refer to the related links. For further details, you can download the PDF or feel free to contact us.*

• Sealing

"I want to choose a reliable gasket for the plant's steam and cooling water lines while keeping costs down." "The joint sheet cannot withstand it, but the highest performance graphite filler is over-spec." "Is there a spiral wound gasket that is easy to install and economical for medium and low-pressure piping?" To ensure stable operation of the plant, it is essential to maintain not only the main process lines but also the utility lines such as steam, cooling water, hot water, and compressed air. In these lines, the balance between "cost performance" and "stable reliability" is prioritized over extremely high performance. The product developed to accurately meet such on-site needs is the standard semi-metallic gasket manufactured by Vulcan, the "Vulcan No. 8590 Series (commonly known as CleanTite)." *For more detailed information, please refer to the related link. For more details, you can download the PDF or feel free to contact us.

• Sealing

There are extreme conditions in the industrial world where the common knowledge of sealing materials does not apply at all. Ultra-high temperatures, ultra-high pressures, and ultra-high vacuum. To meet the supreme challenge of maintaining system airtightness under such conditions, the last bastion that exists is the 'metal gasket.' In this article, we will thoroughly explain why metal gaskets, composed solely of metal, can exhibit high sealing performance, their diverse shapes and principles, and the correct material selection and usage to fully harness their capabilities. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

• Sealing

"When stainless steel pipes were used with carbon steel bolts, only the bolts rusted excessively. In the case of dissimilar metal connections in seawater piping, one of the metals became severely corroded." Do you have any experience with such "abnormal corrosion" of metals? It may not just be rust, but rather "galvanic corrosion." Galvanic corrosion progresses locally through a mechanism different from normal corrosion, and if left unchecked, it can lead to leaks from the piping, a decrease in equipment strength, and in the worst case, serious accidents. *For more details on the column, please refer to the related link. For more information, feel free to download the PDF or contact us directly.*

• Sealing

Maintenance of machinery and equipment that has been in operation for many years. When I opened the flange after a long time, I found a deteriorated unknown gasket. Have you ever encountered such a situation? Moreover, it is not uncommon for that unidentified gasket to actually be an asbestos-containing gasket that was widely used in the past. Once celebrated as a "dream material" for its incredible heat resistance, chemical resistance, and durability, asbestos gaskets were active in various industrial fields. However, as the serious health hazards became clear, new manufacturing and use are now strictly prohibited by law. *For more details on the column, you can view it through the related link. For more information, please download the PDF or feel free to contact us.

• Sealing

"I want a seal performance equivalent to a spiral gasket, but is there a gasket that is easier to handle?" "I want to ensure no leaks even in narrow sealing widths like those in heat exchangers." "I am looking for a highly reliable gasket that can be used stably for a long time under high temperature and high pressure." In sealing applications for plants, pressure vessels, heat exchangers, and more, balancing performance and ease of handling is an eternal challenge. Particularly in modern equipment where large diameters and complex shapes are becoming more common, there are increasing situations where conventional gaskets are difficult to use. To meet such advanced demands, we have developed the "Camprofile Gasket," which skillfully combines the strength and heat resistance of metal with the flexibility and sealing ability of non-metal materials. *For more details on the column, please refer to the related links. For more information, please download the PDF or feel free to contact us.*

• Sealing

"The sealing material around the boiler's combustion port becomes worn out due to heat." "The flange of the exhaust duct is significantly warped, and a sheet gasket cannot fill the gap." "When replacing the gasket in the high-temperature area, the adhesion to the flange is severe, making it difficult to remove." In high-temperature equipment such as power plants, incinerators, boilers, and various industrial furnaces, harsh thermal environments exceeding 400°C are commonplace. Gaskets used in such locations require a level of heat resistance that is incomparable to general sealing materials. However, at the same time, flexibility is essential to conform to the warping and irregularities of the flange surfaces unique to high-temperature equipment, and above all, safety to protect the workers is indispensable. *For more detailed information, please refer to the related links. For further details, you can download the PDF or feel free to contact us.*

• Sealing

"The manhole gasket for the boiler, while the glass cloth rated for 400°C makes me a bit uneasy, the AES fiber rated for 800°C is over-spec and costly." "The large-diameter exhaust duct flange has a gasket that is too soft, making it difficult to install vertically." "The gap between the flange surfaces is narrow, and with a flexible gasket, it can bend during insertion." In high-temperature equipment, especially in manholes, inspection ports, and connections of boilers, drying ovens, and exhaust ducts, not only is "heat resistance" important, but "workability (handling performance)" becomes extremely crucial from the perspective of work efficiency and safety. In particular, when installing large-diameter gaskets vertically or inserting them into narrow flange gaps, gaskets that are too soft may lose their shape and require significant effort for 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.*

• Sealing

"I want to reduce costs for the boiler manhole packing." "I need a flexible gasket that fits the flange of the exhaust duct." "Is there an easy-to-use sealing material for a hot air line at around 400°C?" The selection of sealing materials for high-temperature equipment always requires a balance between performance and cost. In particular, in areas such as the inspection openings (manholes, handholes) of boilers and the connection points of exhaust and hot air ducts, where high clamping force cannot be applied and complete airtightness is not required, an over-specified high-performance gasket may not necessarily be the optimal solution. *For more details on the column, please refer to the related links. For more information, please download the PDF or feel free to contact us.

• Sealing

"I want to use a safer RCF-free material for the boiler manhole gasket." "The exhaust duct reaches high temperatures close to 800°C, but there is distortion on the flange surface, making it impossible to seal with a sheet gasket." "For large-diameter high-temperature flanges, the gasket is too soft and loses its shape during installation." Power plants, incinerators, various industrial furnaces, and exhaust systems of diesel engines are subjected to harsh high-temperature environments that can reach 800°C. The gaskets used in these applications must not only have excellent heat resistance but also ensure material safety to protect the workers, as well as flexibility to conform to the distorted flange surfaces typical of high-temperature equipment. However, at the same time, especially for large diameters, ease of handling during installation is also an important factor that cannot be overlooked. *For more details on the column, please refer to the related link. For more information, feel free to download the PDF or contact us directly.*

• Sealing

"Large-diameter manhole gaskets are difficult to install vertically, and I always struggle with them. The flange gap is narrow, and with a soft gasket, it bends during insertion. A safe gasket that is RCF-free is needed for high-temperature areas close to 800°C, but I want something that is easy to handle." In high-temperature equipment, especially for sealing manholes and inspection ports in boilers, incinerators, and large ducts, not only is "heat resistance" and "safety" important, but "ease of installation (handling)" becomes extremely crucial from the perspective of work efficiency and ensuring safety. To respond to the voices from the field that prioritize "high-temperature resistance," "RCF-free safety," and above all, "ease of handling during installation (rigidity)," Nichias Corporation has designed the high-performance woven fabric gasket "TOMBO No. 1420-S (Super Manhole Gasket-S)." *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.*

• Sealing

Based on the customer's specifications, we produced two plates measuring 40mm x 300mm from a 10mm thick PTFE sheet. The processing involved drilling two holes with a diameter of 16mm. Using our plotter processing machine (with router functionality), we processed it directly and precisely from CAD data. Since no die was required, we were able to respond quickly to small lot requests with a clean finish and no burrs. 【Case Overview】 ■Production Details: Plotter processed products ■Material Used: PTFE 10t *For more details, please download the PDF or feel free to contact us.

• Processing Contract

At the request of our customer, we produced original golf balls with a logo. First, we listened to the customer's needs and created the logo design data for the company. After that, we used a laser marker to clearly engrave the design onto the curved surface of the golf balls. By applying industrial precision marking technology, we produce high-quality original goods. 【Case Overview】 ■Production Details: Laser-marked items ■Materials Used: Golf balls *For more details, please download the PDF or feel free to contact us.

• Processing Contract
• Laser marker

We would like to introduce a case where we processed "D4000 Expanded Graphite Gasket" for boilers using our plotter processing machine based on customer specifications. This time, we manufactured two ring-shaped gaskets with an outer diameter of φ462mm and an inner diameter of φ372mm from a 3mm thick D4000 expanded graphite gasket. The processing was done directly and precisely from CAD data. Since no die was required, we were able to respond quickly to small lot requests with a clean finish and no burrs. 【Product Details (D4000 Expanded Graphite Gasket)】 ■ Excellent heat and chemical resistance: Usable over a wide range from high temperatures (up to 400°C) to extremely low temperatures, with excellent chemical and corrosion resistance. ■ Wide range of applications: Used as gaskets for flanges, valves, equipment, pumps, pressure vessels, heat exchangers, condensers, and more. *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 nameplates for equipment from stainless steel plates at the request of a customer. First, we precisely cut the plates to the specified dimensions and shapes using a laser cutting machine. After that, we clearly engraved the product name and serial number using a laser marker. By handling everything from cutting to marking in a consistent manner, we were able to deliver high-quality products quickly. 【Features of Laser Marker Processing】 ■ Prints that do not peel or fade ■ High-resolution marking ■ Suitable for nameplate production ■ Non-contact processing ■ No molds required, accommodating a variety of products *For more details, please download the PDF or feel free to contact us.

• Processing Contract

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

• Processing Contract

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

• Processing Contract

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

• Processing Contract