Custom Junction Box Fabrication — Precise & Fast

Stainless steel and galvanized junction boxes for residential and industrial electrical systems. Custom sizes, IP54/IP65 rated, durable powder coat finish.

Custom Junction Box Fabrication — Precise & Fast

What is a junction box?

A junction box is a protective enclosure for electrical devices such as circuit breakers, fuses, outlets and controllers. Smaller than full enclosures, typically used for sub-distribution or floor-level electrical systems.

Junction boxes must meet dust and water protection standards (IP54+ for outdoor). Common materials: galvanized SGCC (indoor), stainless SUS 304 (outdoor, humid areas).

Technical Specifications

Thickness
0.8–1.5mm
Tolerance
±0.1mm
Material
SGCC, SUS 304
Finish
Powder coat or raw stainless

Manufacturing Process

1

Laser cut body, lid and base panels

Laser Cutting →
2

CNC bend to form box shape and flanges

CNC Bending →
3

Spot weld or TIG weld assembly with hinges

Welding →
4

Powder coat and IP rating verification

Powder Coating →

Recommended Materials

SGCC 1.0mm is the most popular choice for indoor junction boxes. Stainless SUS 304 for outdoor, humid areas or food factory installations.

SGCC Most popularSUS 304 SS400

Frequently Asked Questions

Do junction boxes meet IP standards?

Yes. Junction boxes are designed to IP54 (indoor) or IP65 (outdoor). Rubber gaskets and sealed construction ensure effective dust and water protection.

How much does a stainless junction box cost?

Standard box (300×200×150mm, SGCC) from $10–20. Stainless SUS 304 is 40–60% more. Send specific dimensions for exact pricing.

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Send your drawings — quote within 2 hours.