関東洗機工業 List of Products and Services

We would like to introduce our "on-site construction" services. By performing pressure tests on newly installed piping and aging existing piping, oil flushing, chemical flushing, pig cleaning, and high-pressure cleaning of heat exchangers on-site, we can ensure the integrity of piping and equipment, as well as reduce costs by extending the lifespan of hydraulic equipment. Additionally, we specialize in on-site chemical cleaning for large stainless steel tanks and underground tanks that we have fabricated and installed, which greatly contributes to ensuring product purity inside the tanks and maintaining their appearance. [Industries] ■ Shipbuilding, steel manufacturing, food, pharmaceuticals, power plants, water treatment, chemical plants, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

We would like to introduce the "Pressure Test and Leak Test" that we conduct. A pressure test is conducted to verify whether newly manufactured piping, or existing piping from equipment that has been inactive for many years, can withstand actual operation when reactivated. It also checks for defects (such as pinholes, missed welds, insufficient threading, etc.) after processing. This test is performed before the equipment is put into operation, using water, hydraulic oil, nitrogen, or other fluids at the necessary pressure. Please feel free to contact us if you require our services. [Overview] ■ A pre-test is conducted before equipment operation using water, hydraulic oil, nitrogen, or other fluids at the necessary pressure. *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

Flushing is primarily aimed at removing floating rust, residual foreign substances, and other contaminants from the interior of piping, heat exchangers, and tanks, in order to operate equipment and systems normally and ensure long-term operation. We are confident that through oil flushing, chemical flushing, pig cleaning, and other services, we can provide satisfaction to our customers. Our knowledgeable and experienced staff are available, so please feel free to consult with us when planning. 【Services Offered】 ■ Oil Flushing ■ Chemical Flushing ■ Pig Cleaning, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

We would like to introduce our "passivation coating treatment." The surface of stainless steel is covered with a dense passivation film. Therefore, it is generally considered to be a material that is resistant to rust. However, various external factors such as the heat from welding during fabrication, oxidation scale, or iron dust and scratches from grinders can damage the surface film, leading to rust formation. After achieving a clean surface through chemical cleaning, it is necessary to perform a treatment to re-form a stronger passivation film. The same can be said for aluminum materials. 【Process】 1. Cleaning 2. Passivation treatment 3. Black light inspection *For more details, please refer to the PDF document or feel free to contact us.

• Hazardous material processing

Our company primarily offers zinc phosphate calcium treatment. This treatment is effective in suppressing rust that occurs during the short period of storage and transportation of manufactured steel structures and piping until they are painted, and it is also effective as a surface preparation for painting. However, it is essential to perform rust prevention treatment with oil to suppress rust. Please feel free to contact us when you need our services. 【Features】 ■ Suppresses rust that occurs in a short period ■ Effective as a surface preparation for painting ■ It is essential to perform rust prevention treatment with oil to suppress rust *For more details, please refer to the PDF document or feel free to contact us.

• Hazardous material processing

We would like to introduce our company's "pickling, acid cleaning, and acid treatment." Pickling refers to the process of immersing metal products in acid solutions such as sulfuric acid or hydrochloric acid to remove oxides, such as scale and oxide films, that have formed on the surface of the metal due to heat treatment or welding. If pickling is not done properly, plating may not adhere well, and in the case of titanium products, even after polishing, they may lose their luster. Therefore, it is performed as a pre-treatment before cold rolling, plating, and polishing processes. 【Features】 - Cleaning the surface of metal products by immersing them in acid solutions such as sulfuric acid or hydrochloric acid. - Conducted as a pre-treatment for cold rolling, plating, and polishing processes. *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

We would like to introduce our "Coating Cleaning" service. This method is adopted when the items to be cleaned are too large to fit into the cleaning tank, or when you want to clean a part or a specific area of the item. It is mainly used for cleaning stainless steel products. Please feel free to contact us when you need our services. 【Features】 ■ Adopted when the items to be cleaned are too large to fit into the cleaning tank, or when you want to clean a part or a specific area of the item. ■ Mainly used for cleaning stainless steel products. *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

"Circulating cleaning" is a method in which chemicals are dissolved in a temporary tank and sent to the object to be cleaned using a pump, forcibly circulating the liquid to dissolve and discharge contaminants. This method is used when it is not possible to remove piping on-site or for large equipment such as boilers and heat exchangers. Please feel free to contact us when you need our services. [Features] - Forcibly circulates the liquid to dissolve and discharge contaminants - Used when it is not possible to remove piping on-site or for large equipment such as boilers and heat exchangers *For more details, please refer to the PDF materials or feel free to contact us.

• Other contract services

"Immersion cleaning" is a common method where chemicals are filled in a cleaning tank, and the items to be cleaned are immersed in this tank to dissolve contaminants. To remove oils, varnishes, paints, etc., adhering to the items being cleaned, we use "strong alkaline chemicals"; to remove rust, mill scale, welding scale, etc., we use "strong acidic chemicals"; and to prevent re-rusting, we use "weak alkaline chemicals." Please feel free to contact us when you need our services. [Cleaning Tanks] ■ Degreasing Tank ■ Rust Removal Tank ■ Rust Prevention Tank *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

Our company conducts chemical cleaning using chemical agents such as acids, alkalis, solvents, surfactants, and pure water to remove dirt and contamination. The target objects include a wide variety of equipment made from materials such as iron, stainless steel, copper, cast iron, aluminum, PVC, and lined pipes. Through chemical cleaning, we restore the original functions, performance, and beauty of the equipment, thereby enhancing production efficiency, operational rates, and promoting longevity. Additionally, we perform surface treatments such as zinc phosphate coating on the clean surfaces after chemical cleaning, and passivation treatment on stainless steel surfaces. 【Methods of Operation】 ■ Immersion cleaning ■ Circulation cleaning ■ Coating cleaning *For more details, please download the PDF or feel free to contact us.

• Other cleaning machines
• Other contract services