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Metal Enclosure
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Precision Sheet Metal Enclosure for Circuit Breakers Custom Fabrication Service

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), Aluminum
  • Thickness :

    2.0mm – 4.0mm, depending on pressure and structural requirements
  • Surface Treatment :

    Powder Coating, Painting, Zinc Plating, Anodizing, Passivation
  • Process Involved :

    Laser Cutting, CNC Punching, CNC Bending, Welding (TIG/MIG), Riveting, Tapping, Stamping

Product Overview

This product represents a high-standard solution for Custom Low-voltage Circuit Breaker Enclosure Fabrication, designed specifically for the electrical industry. The comprehensive manufacturing process includes everything from initial design consultation and precision laser cutting to complex CNC bending and durable powder coating. Finished products are engineered to meet tight tolerances, provide robust structural integrity, and achieve high protection ratings, ensuring a perfect fit for both MCCB and ACB draw-out units.

Custom fabrication of a grey powder-coated switchgear frame     Precision sheet metal enclosure for draw-out circuit breaker

 

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.

  • Low-Voltage (LV) Switchgear: Serving as the main frame and withdrawable unit for Air Circuit Breakers (ACBs).
  • Power Distribution Panels: Custom chassis for Molded Case Circuit Breakers (MCCBs) and other protective devices.
  • Motor Control Centers (MCCs): Structural enclosures and "buckets" for motor starters and controllers.
  • Data Centers: Chassis for Power Distribution Units (PDUs) and rack-mount equipment.
  • Renewable Energy: Enclosures and frames for inverters, battery energy storage systems (BESS), and EV charging stations.

 

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.

 

Xiamen Huapusheng Sheet Metal Manufacturing Co., Ltd.

 

 

 

Customer Cases

 

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

  • Power & Energy: Supplied custom slide rail assemblies and enclosures for ABB and Schneider Electric's power control workshops.
  • New Energy / Automotive: Provided structural components and battery housing parts for industry leader CATL , manufactured under the strict  IATF 16949 standard.
  • Telecommunications & Data Centers: Our components are applied in large-scale server cabinet projects for telecom data centers, ensuring operational reliability and performance.

 

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