株式会社　精和工業所 Product Lineup

"If you are having trouble with stainless steel welding, leave it to us." Seiwa Industrial Co., Ltd. specializes in welding technology for thin stainless steel sheets and possesses various processing techniques and advanced expertise as a welding and joining specialist. With high technical skills and abundant know-how, we have established advanced welding processes based on years of proven experience, covering everything from sheet metal processing to final assembly. In particular, our welding processing for storage tanks is widely used in domestic electric water heaters and heat pump water heaters by ensuring corrosion resistance and the strength of the welded joints. Our technical capabilities range from TIG welding of 0.3mm thickness to fiber laser welding for ultra-thin shapes requiring thicknesses below 0.1mm. We utilize a variety of welding methods, including TIG, fiber laser, and robotic welding, tailored to the structure and material properties of the products. Additionally, to balance quality and high productivity, we actively utilize dedicated jigs and automation equipment designed and manufactured by our in-house production technology department. If you are having trouble with welding processing, please take a look using the download button. Feel free to contact us as well.

In the energy industry, heat exchangers require high thermal efficiency and durability. Especially as energy conservation progresses, miniaturization and high performance of heat exchangers are essential. Heat exchangers made from thin stainless steel contribute to weight reduction, but welding technology becomes crucial. Poor welding can lead to decreased thermal efficiency and shortened product lifespan. Our welding technology for 0.1mm ultra-thin sheets contributes to the performance improvement of heat exchangers. 【Application Scenarios】 - Manufacturing of heat exchangers - Products requiring thin stainless steel welding - Companies aiming for energy conservation 【Effects of Implementation】 - Improved product reliability through high-precision welding - Weight reduction and high performance through thin sheet design - Optimal product design through diverse welding methods

In the food processing industry, hygiene equipment requires high cleanliness and durability. Particularly in areas that come into direct contact with food, advanced welding techniques are essential to avoid the risk of gaps and uneven surfaces in welds becoming breeding grounds for bacteria. Our integrated production system, capable of handling 0.1mm ultra-thin sheets, addresses these challenges by establishing a hygienic environment through high-quality welding and strict inspections. 【Usage Scenarios】 - Piping for food manufacturing lines - Storage tanks - Cleaning equipment 【Benefits of Implementation】 - Maintenance of high cleanliness - Improvement in product quality - Extension of equipment lifespan

In the chemical plant industry, the durability and safety of reaction vessels are the most critical issues. Particularly in environments exposed to corrosive substances and high pressure, the quality of welds significantly affects product lifespan and safety. Welding defects can lead to leaks and explosions, potentially resulting in substantial losses. Our 0.1mm ultra-thin sheet welding solution addresses these challenges through advanced welding technology and stringent quality control. 【Application Scenarios】 - Reaction vessels - Chemical storage tanks - Various piping 【Benefits of Implementation】 - Achieves high corrosion resistance and strength - Improves product reliability - Ensures safety - Reduces costs

In the food machinery industry, the safety and hygiene management of products are the most important issues. In particular, areas that come into direct contact with food can have gaps and unevenness in welds that become breeding grounds for bacteria, potentially increasing the risk of product quality deterioration and food poisoning. Our products address these challenges through thin plate stainless steel welding technology starting from 0.3mm. We achieve high precision and a smooth finish, providing high-quality components that meet the hygiene standards of food machinery. 【Application Scenarios】 - Various tanks in food manufacturing lines - Conveyor components for food transport - Casings for food processing machines - Kitchen equipment 【Benefits of Implementation】 - Achieving high hygiene standards - Improving product quality - Enhancing cleanability - Reducing the risk of foreign matter contamination