日工産業 List of Products and Services

The "NED" pipe is a stainless steel drainage pipe created by incorporating the advantages of the "egg-shaped sewer pipe" that has been used since the Meiji era. It has a large number of collection holes (1,680 holes/m), providing excellent collection capacity. Additionally, it does not require pre-boring and can be directly inserted. This allows for quick work without the need for special machinery, leading to a reduction in work time. 【Features】 ■ Egg-shaped pipe design ■ Made of stainless steel ■ High collection capacity ■ Contributes to shortening construction time ■ Spear-shaped tip design (automatically provides drainage slope) *For more details, please refer to the PDF document or feel free to contact us.

• Wastewater/wastewater treatment equipment

【Benefits】 ○ Lightweight and thin ○ Reduction in the number of parts *For more details, please contact us or download the catalog.

• Other contract services

This product has been changed from die-cast to pipe material for the purpose of weight reduction. 【Benefits】 ○ Lightweight and thinner ○ Transition in materials and manufacturing methods *For more details, please contact us or download the catalog.

• Other contract services

This is a housing for wheelchair caster assembly made from steel pipe Φ28.6×2t through bulging and machining processes. Protrusions are formed for easy welding of the caster angles on both sides. 【Benefits】 ○ Reduction in the number of parts ○ Automation of welding *For more details, please contact us or download the catalog.

• Other contract services

This is a housing made from galvanized steel pipes Φ60.5×1.6t and Φ97.4×1.6t, with the threaded sections formed through bulge forming. It is a product that has transitioned from cast material to pipe manufacturing. 【Benefits】 ○ Lightweight and thin-walled ○ Transition of materials and manufacturing methods ○ Cost reduction achieved *For more details, please contact us or download the catalog.

• Other contract services

This is a branching pipe for water pumps, formed into a cup shape by spinning (deep drawing) a SUS304 steel plate with a thickness of 2mm, and later shaped with a bulge for the protruding part. It is a small production item, and the protrusion is designed to allow easy welding with other pipes. 【Advantages】 ○ Lightweight and thin-walled ○ Transition in materials and manufacturing methods ○ Cost reduction achieved *For more details, please contact us or download the catalog.

• Other contract services

This is a faucet made by bending a brass pipe with a diameter of Φ40×2t and then forming it into a bulge. It is a countermeasure product against defects such as air holes that occur when polishing the appearance of conventional cast products. 【Benefits】 ○ Transition of materials and manufacturing methods ○ Cost reduction achieved *For more details, please contact us or download the catalog.

• Other contract services

This is a water pump branch pipe formed into a cup shape from SUS304 steel plate with a thickness of 2mm using deep drawing press processing, and later shaped with a bulge for the protruding part. It is suitable for mass production, and the protrusion is designed to allow easy welding with other pipes. 【Advantages】 ○ Transition of materials and manufacturing methods ○ Realization of cost reduction ○ Reduction of welding costs *For more details, please contact us or download the catalog.

• Other contract services

This is a water valve housing made from SUS304 steel pipe Φ50.8×2t, shaped with bulge forming, followed by press processing and cutting. It is a product that has transitioned from brass casting to pipe manufacturing. 【Benefits】 ○ Transition of material and manufacturing method *For more details, please contact us or download the catalog.*

• Other contract services

This is a boiler mounting part made from SUS304 steel pipe Φ27.2×2t, shaped with a bulge forming process to create a flat area for a wrench, and later manufactured through NC machining. The product has been changed from cast iron to pipe material.

• Other contract services

This is a bicycle handlebar component made from a steel pipe Φ25.4×2t through bulging, pressing, and machining processes. 【Benefits】 ○ Lightweight and thin-walled ○ Reduction in the number of parts *For more details, please contact us or download the catalog.

• Other contract services

"Bulge forming" is a hollow forming process for metal pipes in which a pipe set in a mold is filled with ultra-high-pressure liquid while compressing both ends of the pipe axially, allowing it to be processed all at once into the shape engraved in the mold. It is also called hydroforming and involves plastic processing of pipes made from carbon steel, stainless steel (SUS), aluminum, copper, brass, and various alloys. This method contributes to reducing environmental impact and lowering product costs through material savings. We can accommodate custom-made products according to the design and development concept, so please feel free to consult with us. 【Benefits】 ○ Lightweight and thin-walled ○ Reduction in the number of parts ○ Transition in materials and manufacturing methods ○ Realization of cost reduction For more details, please contact us or download the catalog.

• Processing Contract
• tube