光伸産業 List of Products and Services

Koshin Industries' "On-site Cleaning Service" conducts cleaning operations at the location for projects that are already installed and difficult to move, as well as for large-sized products that are challenging to transport to our facility. We have a track record of performing chemical cleaning, rust removal, passivation treatment, and installation and removal of machinery at various locations across the country. All waste liquids generated from these operations are collected by our company. 【Track Record of On-site Cleaning Operations】 ■ Rust removal and cleaning operations inside tanks ・Electrolytic treatment ・Cleaning treatment ■ Internal circulation cleaning (cleaning of only the inner surfaces of pipes and tanks is also possible) *For more details, please download the PDF or feel free to contact us.

• Other cleaning machines

Koshin Industries' "On-site Cleaning Service" travels to locations to perform cleaning tasks for projects that are already installed and difficult to move, as well as for large-sized products that are challenging to transport to our facility. We have a proven track record across the country for chemical cleaning, rust removal, passivation treatment, and the installation and removal of machinery on-site. All waste liquids generated from our work are collected by our company. [Track Record of On-site Cleaning Work] ■ Rust removal and cleaning work inside tanks ・Electrolytic treatment ・Cleaning treatment ■ Internal circulation cleaning (cleaning of only the inner surfaces of pipes and tanks is also possible) *For more details, please download the PDF or feel free to contact us.

• Other cleaning machines

The rust remover "Iron Remover" developed by Koshin Industries is a rust remover that can eliminate stubborn rust such as red rust, brown rust, and yellow rust from iron, stainless steel, copper, and other materials. Koshin Industries, which has selected chemicals and solvents based on the degree of corrosion and contamination, focusing on acidic and alkaline properties, and has been engaged in chemical cleaning (metal cleaning), is a company that knows everything about rust, which is why they created this rust remover. 【Features】 ■ Capable of removing rust from light to severe cases ■ Changes to a purple color, but this is not a problem! ■ A neutral product that is environmentally friendly! Safe and secure to use ■ Available in a wide range of capacities from 4 liters to 400 milliliters, allowing for selection based on usage It can also be used for immersion, so for severe rust cases, immersion is recommended. *For more details, please download the PDF or contact us directly.

• Other machine tools

Koshin Industries will be exhibiting for the first time at Maintenance & Resilience TOKYO. There, we would like to introduce our chemical cleaning technology, which has been developed over more than 50 years of addressing metal cleaning. 【Chemical Cleaning (Reuse)】... We can handle not only new chemical cleaning but also used items and heavily soiled products. This approach reduces costs compared to manufacturing new items and avoids wasting valuable resources, while also being environmentally friendly. 【Various Surface Treatments】... Koshin Industries specializes in pickling, but we also handle other surface treatments such as various plating, painting, polishing, shot blasting, and thermal spraying! Please contact us first! 【On-Site Cleaning】... Chemical cleaning can be performed on-site for existing equipment or large projects where transportation is difficult. Please do not give up even if installed products have rusted! We will also collect waste liquids, ensuring that the work can be done safely and securely.

• Surface treatment contract service

At Koshin Sangyo Co., Ltd., we specialize in chemical cleaning operations tailored to our customers' needs. We also focus on chemical cleaning of used items, which are revitalized to be as good as new through reuse!

• Other machine tools

Precision cleaning aims to remove invisible dirt and residues. Especially in the semiconductor manufacturing process, the adhesion of foreign substances can cause production issues. At Koshin Industries, we utilize our unique cleaning technology to produce clean products.

• Other semiconductor manufacturing equipment

Hikoshin Sangyo Co., Ltd. specializes in the installation, removal, and relocation of various equipment, and we can handle requests from distant locations, from Hokkaido to Kyushu. Additionally, we have welding and other technical skills, allowing us to perform processing on-site. We are always available to discuss requests, consultations, and estimates, so please feel free to contact us!

• Contract manufacturing
• stainless
• Other cleaning machines

At Koshin Sangyo Co., Ltd., we specialize in chemical cleaning operations tailored to our customers' needs. We also focus on chemical cleaning of used items, which are revitalized to be as good as new through reuse!

• Other machine tools

Professionals specializing in cleaning handle the optimal cleaning methods. They select chemicals based on years of accumulated know-how. Dirty plate coolers can be restored to like-new condition. Plate heat exchangers have a simple structure, which means they are less prone to failure, but they are also equipment that tends to be neglected in maintenance. Heat exchangers that have not been maintained and have been used for a long time cannot exhibit their original heat transfer performance due to issues like gasket leaks and dirt accumulation. Koshin Industries supports stable operations for our customers by preventing troubles through the reuse cleaning of such heat exchangers. If it can be brought to our factory, we can handle a variety of situations, from the entire unit to individual plates, and you can entrust us with disassembly, inspection, cleaning, repair, assembly, and testing all at once. If it cannot be brought to our factory and removal or relocation is difficult, our staff will go directly to the site to provide on-site cleaning services.

• others
• Other cleaning machines
• High pressure cleaner

Our company offers "on-site cleaning service" for large products and existing equipment through acid cleaning and circulation cleaning. We prioritize quality and safety above all, and have implemented a strict quality control process in our acid cleaning operations to maintain high quality standards. Additionally, we carry out on-site acid cleaning work quickly and accurately, minimizing work interruptions. 【Features】 ■ Specialized knowledge and experience ■ Customized solutions ■ Commitment to quality and safety ■ Optimization of time and costs *For more details, please refer to the PDF document or feel free to contact us.

• others

Our company specializes in pickling and chemical cleaning. Located in a plating-exclusive industrial zone, as a member of the Fukuyama Metal Center Cooperative, we dynamically respond to our customers' needs with a large-scale wastewater treatment facility and one of the largest stainless steel pickling tanks in western Japan. ■ Maintenance of the Pickling Tank We conduct maintenance of the pickling tank during the consecutive holidays in May each year. By updating the chemicals and inspecting and repairing the interior and exterior surfaces of the tank, we aim to provide stable quality and a safe and secure working environment.

• others

Our company provides a wide range of "various surface treatment services" in areas such as plating, electro-polishing, chemical polishing, painting, coating, shot blasting, and buffing. **Purpose** ■ High-Quality Surface Treatment We offer high-quality surface treatments. We perform treatments to impart excellent properties such as corrosion resistance, wear resistance, anti-corrosiveness, and decorative qualities to the surfaces of products and parts. We have implemented a strict quality control process to achieve finishes that meet our customers' requirements. ■ Provision of a Wide Range of Treatment Technologies We handle various surface treatment technologies and propose the optimal treatment technology according to our customers' needs and materials, achieving finishes that meet the intended purpose. ■ Customized Solutions We provide customized surface treatment solutions tailored to our customers' needs. Depending on the product's application and requirements, we select the most suitable treatment methods and coating materials to achieve finishes that meet durability and appearance requirements. ■ Consideration for the Environment In our surface treatment processes, we are committed to minimizing environmental impact and implement environmentally friendly treatment methods and optimize waste management.

• Processing Contract

Our company offers a "Pressure Test Service" conducted to evaluate the pressure resistance performance of products and equipment. 【Purpose of the Service】 ■ Ensuring Safety Pressure testing is performed to confirm that products and equipment function normally within the designed pressure range and can withstand expected pressure loads. By ensuring that products and equipment are properly designed and manufactured, we secure safety during use. ■ Design Verification Pressure testing is conducted to verify whether the design of products and equipment meets the required pressure and environmental conditions. It allows us to confirm the validity of the design and evaluate the reliability and durability of the product. Additionally, necessary design changes and improvements can be made based on the test results. ■ Quality Control Pressure testing is also related to product quality control. By evaluating the pressure resistance performance of products, we can confirm whether they meet quality standards and specifications. By meeting quality standards, we can provide reliable products. *For more details, please download the PDF or contact us.

• Contract Inspection

Our company offers a "On-site Cleaning Service" for large products and existing equipment, including acid cleaning and circulation cleaning. We prioritize quality and safety above all else, and we have implemented a rigorous quality control process in our acid cleaning operations to maintain high quality standards. Additionally, we carry out on-site acid cleaning work quickly and accurately, minimizing work interruptions. 【Features】 ■ Specialized knowledge and experience ■ Customized solutions ■ Commitment to quality and safety ■ Optimization of time and costs *For more details, please refer to the PDF document or feel free to contact us.

• others

Flushing plays an important role in effective system operation and maintenance. It is essential to choose the appropriate flushing method and frequency, and to implement it while taking the necessary safety precautions. 【Purpose of the Service】 ■ Cleaning and Washing Flushing can remove dirt, deposits, and residues that have adhered to the insides of pipes and plumbing. It is especially an important cleaning method for newly installed systems or systems that have not been used for a long time. ■ Stabilization of Operation Flushing eliminates air and impurities from the insides of pipes and plumbing, ensuring a uniform flow of fluid within the system. This can improve the operational stability of the system. Additionally, flushing removes foreign objects and solid particles from within the system, helping to maintain the normal operation of equipment and valves. ■ Support for Maintenance and Inspection Flushing may be performed before and after maintenance or inspection work on the system. It allows for checking the internal condition and flow of the system, aiding in the early detection of problems and repair work.

• Processing Contract

Reuse chemical cleaning is a cleaning process conducted to reuse used products and materials. [Purpose of Use] ■ Removal of dirt and residues Products and materials targeted for reuse may have dirt and residues that have accumulated during use. Reuse cleaning can remove these dirt and residues, preparing the products and materials for reuse in a suitable condition after cleaning. ■ Recovery and improvement of quality Used products and materials may deteriorate over time or through use. Reuse chemical cleaning can recover or improve quality by removing dirt and degraded parts through cleaning, restoring them to a condition suitable for reuse or recycling. ■ Contribution to the environment Reuse chemical cleaning contributes to waste reduction and alleviation of environmental impact. By reusing products and materials through cleaning, it reduces the need for new resource extraction and manufacturing, helping to minimize waste generation. Recycling cleaning is an important means of contributing to sustainable resource management and environmental protection. *For more details, please refer to the PDF or contact us.

• Other cleaning machines

Internal circulation cleaning is a cleaning process conducted within pipes and equipment. It is an important process from the perspectives of safety, efficiency, and quality control. It is crucial to select appropriate cleaning methods and frequencies while implementing suitable safety measures. 【Purpose of the Service】 ■Removal of dirt and deposits Over time, dirt and deposits can accumulate inside pipes and equipment. These contaminants can restrict fluid flow and reduce efficiency. The goal of internal circulation cleaning is to remove these dirt and deposits, restoring normal fluid flow and efficiency. ■Improvement of system efficiency Internal circulation cleaning effectively enhances the overall efficiency of the system by removing dirt and deposits from inside pipes and equipment. For example, by eliminating scale and sludge from within heat exchangers, heat transfer performance can be improved.

• Processing Contract

Copper pickling is a treatment method used to remove impurities and oxides that adhere to the surface of copper products and components. Copper pickling is performed during the manufacturing process, maintenance, and repair work of copper products and components. Additionally, appropriate safety measures must be taken during copper pickling. The conditions for pickling, such as the treatment time, need to be properly set according to the characteristics of the copper and the usage environment. **Purpose of the Service** Removal of Oxides: Copper reacts with oxygen and oxidizes, forming copper oxide on its surface. Pickling effectively removes these oxides from the copper surface, thereby improving the appearance and conductivity of the copper. **Removal of Impurities**: Impurities may adhere to the surface due to the manufacturing process or usage environment of copper. Pickling dissolves and removes these impurities using an acidic solution. By removing impurities, the surface quality of the copper and the performance of the products can be enhanced. **Surface Cleaning**: Copper pickling can effectively remove residual oils, dirt, and organic materials from the surface. This cleans the copper surface, making it suitable for subsequent surface treatments or plating processes.

• Processing Contract

Hastelloy is an alloy with excellent corrosion resistance, often used in high-temperature, high-pressure environments and under corrosive conditions. Pickling of Hastelloy is performed during the manufacturing process, maintenance, and repair of Hastelloy products and components. Pickling requires specialized knowledge and equipment, and appropriate safety measures must be taken. Additionally, the pickling conditions and treatment time must be set appropriately according to the characteristics of Hastelloy and the usage environment. 【Purpose of the Service】 ■ Removal of oxides and oxide films Oxides and oxide films may form on the surface of Hastelloy due to the manufacturing process or usage environment. Pickling effectively removes these oxides and oxide films, cleaning the surface. This can improve the corrosion resistance and material properties of the alloy. ■ Removal of impurities Impurities may adhere to the surface of Hastelloy during the manufacturing process or handling. Pickling dissolves and removes these impurities using an acidic solution. By removing impurities, the surface quality of Hastelloy and the performance of the products can be enhanced. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We perform acid pickling of titanium, handling a wide range of products from small items to large ones. 【Purpose of the Service】 ■ Removal of Oxides Titanium reacts with oxygen and forms titanium oxide on its surface. Acid pickling effectively removes these oxides from the titanium surface, thereby enhancing the corrosion resistance and material properties of titanium. ■ Removal of Impurities During the manufacturing process or due to the usage environment, impurities may adhere to the surface of titanium. Acid pickling dissolves and removes these impurities using an acidic solution. By removing impurities, we can improve the surface quality of titanium and the performance of the products. ■ Surface Cleaning Through acid pickling, we can effectively remove residual oils, dirt, and organic materials from the titanium surface. This cleans the titanium surface, making it suitable for subsequent surface treatments, bonding, plating, and other processes. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Iron pickling is suitable for the removal of scale and varnish, rust removal, and surface cleaning, serving as a pretreatment for subsequent surface processing. Since it is treated with phosphoric acid, the machined parts can maintain their luster compared to hydrochloric or sulfuric acid, and the rust prevention capability is also higher than that of hydrochloric acid and others. We can provide free pickling for sample products. Additionally, the pickling procedure documentation is available in PDF format. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

Stainless steel pickling is a treatment method used to remove impurities and oxides that adhere to stainless steel due to its usage environment and manufacturing processes. We handle a wide range of products, from small items to large products. We can also accommodate products with iron attachments and those that cannot be immersed. Please feel free to contact us for short delivery times, small lots, and large products. We can also handle SS attachments and non-immersion cases, and we are capable of on-site work. We offer free pickling for sample products, and we can provide the pickling procedure documentation in PDF format.

• Other cleaning machines

At Koshin Sangyo Co., Ltd., we select chemicals and solvents primarily based on the degree of corrosion and contamination, focusing on acidic and alkaline solutions, to perform chemical cleaning (metal cleaning). We can remove floating rust, residues, and foreign substances from the interiors of pipes, target equipment, heat exchangers, and tanks, and we offer flushing and circulating acid cleaning to improve cleaning efficiency. Additionally, we also conduct on-site flushing and acid cleaning work. Please feel free to contact us if you have any requests. 【Processing Details (Partial)】 ■ Acid cleaning of iron ■ Acid cleaning of stainless steel ■ Chemical cleaning (regenerative cleaning) ■ Flushing and circulating acid cleaning ■ Pressure testing *For more details, please refer to the PDF document or feel free to contact us.

• Other cleaning machines

At Koshin Sangyo Co., Ltd., we conduct pickling treatment using immersion and spraying methods, utilizing the large 13m stainless steel pickling tank, one of the largest in western Japan. In iron pickling, it is possible to enhance rust resistance and paint adhesion by simultaneously forming a ferrous phosphate film on the surface during the pickling process. Please feel free to contact us if you have any requests. 【Processing Details (Partial)】 ■ Stainless steel pickling ■ Titanium pickling ■ Chemical cleaning (regeneration cleaning) ■ Iron pickling ■ Pressure testing *For more details, please refer to the PDF document or feel free to contact us.

• Other cleaning machines

This document introduces various Q&A regarding pickling. It includes questions such as "What is the purpose of pickling?" and "What dimensions can be pickled?", as well as "What is the purpose and effect of pickling iron?" Additionally, it covers many other topics, such as "Is on-site pickling work possible?", so please take a moment to read through it. 【Contents (excerpt)】 ■ What is the purpose of pickling? ■ What is the purpose and effect of pickling stainless steel? ■ What is the purpose and effect of pickling iron? ■ What dimensions can be pickled? ■ Can stainless steel with iron attached be pickled? *For more details, please refer to the PDF document or feel free to contact us.

• Other cleaning machines

At Koshin Sangyo Co., Ltd., we perform stainless steel chemical cleaning and various surface treatments. We offer services such as "pickling" to enhance appearance and corrosion resistance, and "pressure resistance flushing" to remove residues mainly from the interiors of pipes, heat exchangers, and tanks. Additionally, we conduct maintenance of the pickling tanks during the consecutive holidays in May, aiming for stable quality and a safe working environment by renewing chemicals and inspecting and repairing the interior and exterior surfaces of the tanks. 【Products and Services】 ■ Pickling ■ Chemical cleaning and on-site work ■ Various surface treatment handling *For more details, please refer to the PDF document or feel free to contact us.

• Other cleaning machines

Our company offers pickling treatment using one of the largest stainless steel pickling tanks and iron pickling tanks in western Japan, utilizing immersion and spraying methods. By pickling, we enhance appearance and corrosion resistance. We can also perform pickling on just the interior or exterior surfaces. We accommodate large items, so please consult us regarding sizes and other details. 【Cleaning Achievements】 ■ SUS tank (internal buff polishing) ■ SUS tank ■ SUS tank φ2,800×3,500 ■ SUS piping ■ Stainless steel header, etc. *For more details, please feel free to contact us.

• Processing Contract