Trading Buisiness

Trading Record

We supply complete underground devices such as multi-circuit switchgear and pad-mounted transformers, as well as pole-mounted devices including overhead switchgear and pole transformers to electric power companies across Japan.
Leveraging our advanced technical capabilities and extensive network, we provide parts and on-site manufacturing support to meet our clients’ diverse needs.

Multi-Circuit Switchgear / Pad-Mounted Transformer

Sheet Metal Processing

This involves processing single sheets of metal into components such as outer casings and doors.
The metal is shaped into the required form through elastic and plastic deformation.
Depending on the specifications, surface shapes such as embossing vary by model.
Pad-mounted transformers require ventilation gaps, so louver processing is applied to certain models.

Metal Machining

Switchgear contains hundreds of internal parts, which are manufactured using techniques such as cutting, turning, milling, grinding, polishing, and EDM (electrical discharge machining).

Surface Treatment

Components produced through metal and sheet metal processing are treated with hot-dip galvanizing, hard chrome plating, or electro-galvanizing to prevent corrosion.
Silver and tin plating, which serve grounding functions, are also used inside the products.

Painting

The main unit is coated using powder, solvent, HLG, or fluoropolymer paint in the specified color.
For units used in harsh environments such as coastal areas, zinc phosphate treatment is applied before painting.

Standard Parts

We procure necessary components such as washers, screws, flat rubber gaskets, locks, and hinges.

Assembly

Once painting is complete and standard parts have been procured, the assembly process begins.
The final step includes attaching stickers with the company logo and lot number.

Transportation

We have a cost-efficient and agile logistics system in place.

Multi-Circuit Switchgear

• Rubber covers made of V-0 grade flame-retardant insulation (6 per unit), used for wire protection and waterproofing.
• Waterproof gaskets made of V-0 grade flame-retardant insulation (1 per unit), prevent water intrusion with a sealed design.
• Bushing gaskets made of V-0 grade flame-retardant insulation (6 per unit), used as bearing sleeves.
• Arc-extinguishing resin components (3 per unit), absorb gases generated during rapid power cutoff.

Pad-Mounted Transformer

• Oil-resistant rubber gasket (1 per unit), capable of withstanding insulating oil inside the unit.
• Oil- and weather-resistant waterproof rubber gasket (1 per unit), prevents external water from entering the unit.