Precision Sheet Metal Enclosure for Circuit Breakers Custom Fabrication Service
This is a high-precision, heavy-duty metal chassis designed specifically for Draw-out Air Circuit Breakers (ACB) or Molded Case Circuit Breakers (MCCB).
At Xiamen Huapusheng, we leverage our state-of-the-art Trumpf and AMADA equipment to create components with unparalleled precision. This Air Chamber Box, with its accurately placed ports and robust structure, is designed for the seamless integration of valves, sensors, and fittings.
Our service delivers a complete, ready-to-use component that enhances the performance and reliability of your automated systems.
Material :
Cold Rolled Steel (SPCC), Galvanized Steel (SGCC), Stainless Steel (SUS304/316), AluminumThickness :
2.0mm – 4.0mm, depending on pressure and structural requirementsSurface Treatment :
Powder Coating, Painting, Zinc Plating, Anodizing, PassivationProcess Involved :
Laser Cutting, CNC Punching, CNC Bending, Welding (TIG/MIG), Riveting, Tapping, StampingProduct Overview

Key Features & Advantages
✨High-Precision Fabrication: Utilizing advanced laser cutting, CNC punching, and CNC bending technology, we guarantee exceptional accuracy. All mounting holes, brackets, and dimensions maintain in-house tight tolerances (e.g., ±0.1mm) for a perfect fit with your circuit breakers and internal components.
✨Robust & Durable Construction: Engineered for mechanical strength and stability, this chassis is fabricated from high-grade materials like cold-rolled steel (SPCC) or galvanized steel (SGCC). Professional welding (TIG/MIG) and robust assembly ensure the frame can withstand heavy-duty industrial use.
✨Full-Service OEM & ODM: As a full-service sheet metal fabrication provider, we manage the entire process from your design (CAD/STEP) to the finished product. This includes cutting, bending, welding, riveting, fastener insertion (PEM), finishing, and final assembly (e.g., installing castors, handles).
✨Superior Surface Finish: The pictured unit features a high-quality electrostatic powder coating. This finish provides a professional aesthetic, superior corrosion resistance, and excellent electrical insulation properties, ensuring long life even in demanding environments.
✨Complete Customization: We build to your exact specifications. You define the material, thickness, dimensions, hole patterns, color (RAL), and any other structural requirement to create a solution that integrates seamlessly into your switchgear assembly.
Product Specifications
| Product Name | Circuit Breaker Metal Enclosure |
| Material Options | Cold Rolled Steel (SPCC), Galvanized Steel (SGCC), Stainless Steel (SUS304/316), Aluminum |
| Thickness | 2.0mm – 4.0mm (customizable) |
| Process | Laser Cutting, CNC Punching, CNC Bending, Welding (TIG/MIG), Riveting, Tapping, Stamping |
| Surface finish | Powder Coating, Painting, Zinc Plating, Anodizing, Passivation |
Applications
Each enclosure is a finished sheet metal product, supporting both OEM and custom fabrication services for international clients. The ability to customize every aspect of the design makes our service ideal for creating components that provide superior performance and integration.
Manufacturing & Quality Assurance
All products are manufactured in our 30,000㎡ sheet metal facility equipped with advanced CNC punching, AMADA fiber laser cutting, automated welding robots, and automatic powder coating lines. Strict quality control is implemented under ISO9001 and ISO14001 management systems.
Company Strength
Xiamen Huapusheng Sheet Metal Manufacturing Co., Ltd. specializes in power control equipment and precision sheet metal fabrication. With 200+ employees, 36 engineers, and 32 patents, we serve global clients in the power, communication, and industrial sectors.

Customer Cases
We are a trusted OEM partner for global leaders across multiple industries, providing reliable components for their mission-critical applications.

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