JCL Precision Part Co.,Ltd.
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Electrical Bracket Box

An electrical bracket box is an enclosure that helps to mount and protect your electronic devices. Most of the time, they are made of a rigid steel frame for durability, with the most basic boxes constructed from mild steel.

The steel frame allows bracket boxes to be securely fastened to walls and ceilings using screws or bolts to provide stable housing for electrical fixtures and connections. As they are made of conductive metal, electrical bracket boxes need to be properly grounded to safely enclose wiring devices according to electrical codes. 

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Key Features of Electrical Bracket Boxes

Sturdy Steel Frame Construction

Electrical bracket boxes are made of sturdy steel frames to give durability for securely mounting devices. The heavy-duty metal housing is designed to withstand physical impacts from installed appliances.

Protective Enclosure

The fully enclosed steel frame protects internal wiring connections, terminals, and components. It shields from dust and debris intrusion while blocking contact with external structural materials. This gives protection against environmental exposure, electrical shorts, and system failure.

Mounting Versatility

For different design requirements, electrical bracket boxes have multiple holes, slots, and knockouts. These enable seamless interfacing with a diverse array of mounting fixtures, including conduits, outlet covers, and hanging bolts. The flexibility also facilitates secure attachment to various surface materials, allowing for screwing, bolting, or clipping as needed.

Maintain Wiring Isolation

The enclosed steel frame of these electrical bracket boxes plays an essential role in maintaining wiring isolation. By protecting wires from external contaminants, the bracket boxes contribute to the preservation of system integrity. Knockout panels give controlled access to the internal wiring while still blocking environmental exposure.

Regulatory Compliance

Enclosure for safe wire access meets regional regulatory standards like NEC, supporting code-compliant installations. The conductive housing supports system grounding for enhanced electrical safety, ensuring that installations adhere to code requirements and industry standards.

High Load Rating

These bracket boxes are manufactured from heavy 14+ gauge mild steel, endowing them with a high load rating. This feature makes them appropriate for providing substantial weights, catering to the demands of larger equipment, such as industrial motors or appliances.

Increased Mounting Integrity

The use of thicker steel framing in these bracket boxes contributes to increased mounting integrity. This design selection increases structural stability at mounted junctions, stopping the box from being ripped from the steel frame under shear loads generated by supported devices.

Installation Convenience

The box shape and dimensions of electrical bracket boxes are designed for installation convenience. This assists in direct surface screwing or bolting into wall studs and ceiling joists, allowing a rapid and secure installation process.


       JCL’s Custom Metal Stamping Process for Electrical Bracket Boxes


Coil Sheet Payoff

First, Large 10-ton coils of thin 22 gauge mild steel are loaded onto powered decoiler machines that feed sheet steel stock into the progressive stamping press at 5 feet per minute. These decoilers help to unwind the steel coils, feeding the sheet steel stock into the progressive stamping press at a rate of 5 feet per minute.

Feed Mechanism Alignment

Then we drive the electric servo to adjust the linear feed rate of the steel band through the indexing die stations to ensure the accuracy of punch alignment. This meticulous adjustment is also critical for the precision of the subsequent stamping process.

Pilot Pinhole Punching

Our initial metal stamping station has a set of tapered guide pins that punch small pilot indexing holes into both edges of the steel band. These holes work as downstream registration references, assisting in the alignment of subsequent custom metal stamping processes.

Profile Blank Shearing

In our next station, we have a set of custom-machined medium carbon steel profile knives. We use these precision-ground knives to cut the overall rectangular outline shape of the electrical box panels along the steel band edges as the metal stamping process progresses. In this stage, we define the basic shape of the electrical bracket box.

Mounting Hardware Forming

Moving further with the progressive die tooling, we also use eccentric cams with hardened inserts. By using these tools, we cold-form threaded nut receptacles, ground screw holes, and mount bolt holes according to the specified design requirements in the passing perform strip.

Conduit Knockout Piercing

After that, our team will use punches and die blocks designed to remove 1/2" and 3/4" diameter slugs from the panels. It will create conduit and cable access knockout ports at marked intervals within the defined electrical bracket box profile.

Flange Bending

Subsequent forming station dies are employed to bend the side flanges of the trailing electrical bracket box walls to 90 degrees. This bending operation gives the enclosure its distinctive box frame shape.

Profile Part Chop Off

At the final piercing dies trim the excess material and cut the fully formed steel frame box section pieces from the steel band.  We eject the finished electrical bracket box performance from the last station of the press line, completing the custom metal stamping process.


                            Key Benefits of Jcl's Electrical Bracket Boxes


Custom Engineered Designs

JCL's electrical bracket boxes are custom-engineered based on your specific requirements. It can vary in size, shape, finish, and functionality. Our expert team uses the latest modeling software to manufacture customized bracket boxes tailored to fit the electrical application.

Durability & Strength

Our precision manufacturing from aluminum and steel alloys results in robust and durable electrical bracket boxes that give lasting protection and structural integrity in demanding electrical settings. The materials and thicknesses are decided depending on the required mechanical strength specifications.

Corrosion Resistant

Our electrical bracket boxes feature finishes including powder coating, anodizing, nickel plating, or stainless steel materials selected to withstand corrosion. All configurations are designed for outdoor, humid, coastal, or chemical plant environments.

Code Compliance

Our engineering team makes sure that bracket boxes meet essential electrical standards for spacing, fastening points, conduit openings, and ingress protection. They accommodate required internal component layouts. Design adaptability facilitates global electrical certification compliance.

Cost Effectiveness

Compared to field-constructed alternatives, JCL's electrical bracket boxes provide a cost-effective solution with quicker turnaround times. Our automated production methods allow high volume capacity for large orders.


Contact Us

We are excited to collaborate with you! 

If you have any questions about our products or require custom machining services, please don’t hesitate to reach out to us. We are here to assist you and provide the solutions you need.

Building A, No. 2 Shiquanling Road, Zhenjiang Sub-district, HZZK Hi-tech Industrial Development Zone, Huizhou