Completion of the Hexa Gate Plug Construction for the Tachiaigawa Main Line Water Stop Wall.

Post-installation water shut-off confirmation is possible! The manhole structure features an easy-to-open and close pin insertion mechanism operated by a handle.

We would like to introduce our "Hexagate Plug." It allows for water stop confirmation after installation. It features an easy-to-open and close manhole structure with a pin insertion mechanism operated by a handle. It can be used for temporary storage of rainwater main lines in shield tunnels, as well as for safety measures during branch connection work and backflow prevention during heavy rainfall. 【Features】 ■ High water stop sealing mechanism ■ Water stop confirmation possible after installation ■ Easy-to-open and close manhole structure ■ Manhole water stop mechanism *For more details, please refer to the PDF document or feel free to contact us.

• Sealing

A closing plug that excels in lightweight, airtightness, and durability, and is active in a wide range of fields!

This product is a closing plug used for blocking the openings of various pipelines. It is utilized in various fields to prevent the intrusion of foreign objects during plumbing work and to prevent the leakage of liquids and gases from the pipelines. Due to its simple and lightweight design, it offers excellent workability and can be quickly attached and detached as needed, greatly contributing to the reduction of labor hours. This product effectively expands the opening by sandwiching a rubber ring with a C-shaped cross-section between two inclined iron plates. 【Features】 ■ Easy operation without tools ■ Cost-effective with rubber ring replacement *For more details, please refer to the catalog or feel free to contact us.

• Other electronic parts
• Pipe Fittings
• Piping Materials

Can seal large gaps! Pressure management allows for adjustment of sealing surface pressure.

The "TUBE SEAL" expands (inflatable) by being pressurized with a fluid (air, water, oil, etc.), sealing gaps and demonstrating its sealing function. It can seal large gaps and can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface. Additionally, it allows for pressure management and on/off adjustments via remote control, and the sealing surface pressure can be adjusted through pressure management. 【Features】 ■ Capable of sealing large gaps ■ Can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface ■ Allows for pressure management and on/off adjustments via remote control ■ Sealing surface pressure can be adjusted through pressure management ■ Specifications can be designed separately according to application *For more details, please refer to the PDF document or feel free to contact us.

• others

● The production time for casting prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly creating sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or variations in dimensions, can be created in a single molding process. This allows for the verification of multiple types in a short period.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without affecting the base material with heat. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Dear Sir/Madam, I would like to express my congratulations on the continued prosperity of your company. Thank you very much for your exceptional support. We would like to inform you that our company will be closed for winter holidays during the following period. We apologize for any inconvenience this may cause and kindly ask for your understanding. 1. Winter Holiday Period From Thursday, December 28, 2023, to Thursday, January 4, 2024. 2. Business Operations After the Winter Holiday Period We will resume normal operations from Friday, January 5, 2024.

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.