Sheet Metal

The Sheet Metal Manufacturer!

 

 

Changshu Dazheng Electromechanical Equipment Co., Ltd It is a comprehensive mechanical and electrical equipment manufacturing enterprise integrating R&D, production, sales and service.

 

 
  • Electrical Cabinet Rain Cover
    This metal electrical cabinet rain cover is primarily designed for industrial equipment, automation systems, new energy, and power industry applications.
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  • Coupling Guard Cover
    This metal coupling protective housing is mainly used in heavy industry, metallurgy, energy and power, petrochemical, and related industrial sectors.
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  • Sheet Metal Fuel Tank
    We provide professionally customized Sheet Metal Fuel Tank products manufactured from premium metal sheet materials. Surface finishing and plate thickness can be flexibly adjusted according to...
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  • Sheet Metal Box Manufacturers
    We provide professional customized Sheet Metal Box Manufacturers solutions using high-quality metal sheet materials. Surface treatment options and plate thickness can be flexibly customized...
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  • Aluminum Extrusion Framing Systems
    This aluminum extrusion framing systems is made from high-quality aluminum alloy. Molded parts are in stock for fast delivery. Widely used in industrial equipment, automation, new energy, and...
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  • Duct Adapter Square To Round Transition
    This product is a duct adapter square to round transition, made from high-quality carbon steel or stainless steel. Molded parts are in stock for fast delivery. Widely used in industrial equipment,...
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  • Simplex Basket Filter
    This simplex basket filter is made of high-quality metal, with molded parts available in stock for quick delivery. Widely applicable in industrial equipment, automation, new energy, and power...
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  • Stainless Steel Fan Guard
    This stainless steel fan guard is made of high-strength metal sheet and supports flexible customization of dimensions and plate thickness according to customer requirements. Molded parts are...
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  • Custom Electrical Junction Boxes
    This product is a custom electrical junction boxes made from a variety of high-quality sheet metal materials, including stainless steel, carbon steel, rolled steel, and aluminum alloy, to meet...
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  • Custom Electrical Boxes
    This product is a custom electrical boxes made from sheet metal materials. It supports flexible customization of specifications and plate thickness according to customer requirements. The...
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Why Choose Us
Solution Design and Optimization
With extensive industry experience, we provide machining centers, punch press machines, and press brakes with customized solutions for equipment selection, production line layout, precision metal processing, and efficient engineering implementation.
Quality Assurance and Maintenance
Strictly implement product quality assurance commitments. Provide regular return visits, preventive maintenance services, establish equipment/project files, and conduct full lifecycle tracking.
Our Services
We provide punch press machines and press brakes with 24-hour technical support, remote troubleshooting, fast engineer dispatch, and reliable after-sales service for efficient metal fabrication and industrial production needs.

 

Is it in stock:

Yes

Molded parts:

Custom Electrical Junction Boxes

Surface treatment:

Electroplating / coating, etc.

Material cutting method:

Determined based on the specific product

Whether free samples are supported:

Yes

Sheet metal material:

Stainless steel / carbon steel / rolled steel / aluminum alloy, etc.

Processing Type:

Laser cutting/bending/welding/CNC machining, etc.

Plate Thickness:

1mm to 60mm

Application areas:

Industrial machinery/communication equipment and other fields

Specifications:

Custom

 

Advantages of Custom Electrical Junction Boxes

Increased safety 

One of the most important benefits of using a junction box is increased safety. By securely encasing electrical components, you can reduce the risks of electrical shock and fire hazards.


Protection from the elements 

Waterproof and weatherproof junction boxes protect wiring and electrical components from water damage, exposure to the elements and wear and tear.

Adaptable

Electrical junction boxes come in a wide range of sizes and designs to fit your specific needs. They can be installed in a variety of locations, including walls, floors, and ceilings.

Easy to install

Junction boxes are simple and easy to install, making them ideal for both professional and DIY electrical work.

Versatility

Electrical junction boxes are adaptable and can be used in a variety of situations, including in residential, commercial, and industrial settings.

 

Types of Custom Electrical Junction Boxes

 

 

Based on the material – If we have to define the types based on the material used, then there are two major varieties – metal and plastic.


Based on size – 2 gang, 3- gang, and 4 gang boxes, 4-inch square boxes are the three types of boxes. Depending on the number of wires and connections the user can use these boxes. 2 gang box is small in size, 3 gang box is medium, the 4 gang box is the large one and the 4-inch square box is the standard one. Based on shape – These boxes also come in different shapes – round, octagon and round, and rectangle.


Based on purpose – The above-mentioned varieties can also be differentiated for their purpose. Other than these there is another junction box – a ceiling fan-rated Electrical Junction box.

 

Applications for Custom Electrical Junction Boxes
 

Office and Retail
Commercial office and retail buildings are typically the least demanding applications for junction boxes. However, these applications still need basic protection against unauthorized access and accidental contact, and they also usually need junction boxes with more space than you'll find in standard residential boxes.

 

Warehouses and Distribution Centers
Most warehouses and distribution centers aren't subject to harsh environmental conditions, but they're demanding applications nonetheless. These facilities often use a lot of electricity to power lighting systems, climate control and other essentials.

 

Marine Environments
Marine applications such as cargo ports, marinas or seafaring vessels are among the most demanding for any type of electrical component. Electrical connections in these areas have to withstand waves, wind, corrosive salt water and possibly even submersion.

 

Manufacturing Facilities
The manufacturing industry requires extremely reliable and well-protected electrical systems. High voltage loads are often distributed through extremely complex systems across numerous branch circuits. Many manufacturing facilities also present hazards like flying debris and splashing water.

 

Medical Facilities
Medical facilities also have large and complex electrical systems that require tough junction boxes. Reliability and ease of access are particularly important in medical applications, since an electrical failure can put lives in danger.

 

Is it in stock:

Yes

Molded parts:

custom electrical boxes

Surface treatment:

Processed according to customer requirements

Material cutting method:

Determined based on the specific product

Whether free samples are supported:

Subject to negotiation based on specific requirements

Sheet metal material:

Metal

Processing Type:

Other

Plate Thickness:

Customized according to customer requirements

Application areas:

Industrial machinery / communication equipment / other fields

Specifications:

Custom

 

 

Benefits of Custom Electrical Boxes

 

 

Scalability: You can upgrade or expand your setup later without tearing out walls.

Aesthetic Control: Flush-mounted gang boxes make wall plates sit perfectly flat.

Wire Management: Reduce the chaos and risk of wire entanglement.

Fire Safety: By containing electrical sparks or shorts, they reduce fire hazards.

Code Compliance: Any professional electrician will tell you—installing a device without a proper gang box is a safety violation waiting to happen.

 

Application of Custom Electrical Boxes

Industrial Automation and Manufacturing

In factories, enclosures often house PLCs, motor controls, relays, power supplies, and terminal systems. Here, the enclosure must support durability, layout efficiency, and straightforward maintenance. A strong industrial control cabinet helps engineers keep systems organized in environments where downtime is expensive and service access must be quick.

Commercial Building Infrastructure

In office buildings, hospitals, retail spaces, and mixed-use developments, a commercial electrical panel or control enclosure must balance protection, accessibility, and appearance. The product needs to look orderly, support code-conscious installation practices, and remain practical for facility teams over the long term.

Custom Electrical Boxes
Custom Electrical Boxes suppliers

Renewable Energy and Outdoor Installations

Renewable energy projects often need a more application-specific outdoor electrical enclosure for inverter interfaces, combiner functions, battery-related equipment, or local distribution tasks. In these cases, buyers often request application-appropriate ingress protection and material or finish choices suited to the environment. For relevant certification contexts, enclosure protection and marking are typically evaluated against recognized enclosure standards and IP frameworks rather than assumed by default.

Telecom, Data, and Utility Support Systems

Telecom rooms, data facilities, and utility-side installations often use enclosures for dense component layouts, backup power interfaces, and structured distribution. Here, precision in internal arrangement becomes especially valuable because the space is often limited and the expectation for reliability is very high.

 

 

Steps to Replace an Electrical Boxes

 

 

 

Turn off the Power: Always turn off the power at the circuit breaker. This ensures that any risk of electrical shock is avoided.

 
 

Remove the Cover Plate: Take off the cover plate from the existing box with a screwdriver.

 
 

Disconnect the Wires: Carefully disconnect the wires from the old electrical box. Label the wires to help with reinstallation.

 
 

Remove the Old Box: Use a screwdriver or pliers to remove the box from its mounting.

 
 

Install the New Box: Mount the new electrical box in the same location. Ensure it is secure and level.

 
 

Reconnect the Wires: Reconnect the wires to the new electrical box. Follow the same configuration as before.

 
 

Replace the Cover Plate: Replace the cover plate after a secure connection. Also, ensure everything is tightly secured.

 
 

Test the System: Finally, turn the power back on at the circuit breaker and test the system to ensure everything is functioning properly.

 

 

Packaging box transportation

 

Packing Details

We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package.

Delivery Details

We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc.
TNT, DHL,UPS, FEDEX, EMS,S.F EXPRESS etc.

productcate-800-400

 

 

FAQ

 
 

Q: What is a junction box used for in electrical wiring?

A: A junction box is used to enclose and protect wire splices and connection points in an electrical system. It helps improve safety, keeps wiring organized, and makes inspection or future maintenance easier.

Q: When do you need a junction box for wire splices?

A: You usually need a junction box when wires are spliced, extended, or branched to another connection point. If wire connections are made outside a device housing, they should normally be enclosed inside a proper box.

Q: Can a junction box be used outdoors?

A: Yes, but it must be a weatherproof junction box designed for outdoor or damp locations. For outdoor use, you should also consider protection ratings, material choice, and exposure to rain, dust, and corrosion.

Q: What is the difference between a junction box and an outlet box?

A: A junction box is mainly used to protect wire splices, while an outlet box is designed to hold a receptacle, switch, or other device. The right choice depends on whether you need to protect a connection or mount electrical equipment.

Q: How do you choose the right junction box size and material?

A: Choose the box based on the number of wires, installation environment, and required protection level. Metal junction boxes are often better for tougher conditions, while plastic junction boxes are common in many indoor residential applications.

Q: Can the Electrical Boxes be customized according to project requirements?

A: Yes, the size, material, structure, color, mounting type, and internal configuration can all be customized based on customer requirements.

Q: What materials are available for Custom Electrical Boxes?

A: Common materials include carbon steel, stainless steel, aluminum, and galvanized steel, depending on the application environment.

Q: Are the Electrical Boxes suitable for outdoor use?

A: Yes, weatherproof and waterproof designs are available for outdoor applications with different protection ratings such as IP65 and IP66.

Q: What industries commonly use Custom Electrical Boxes?

A: These products are widely used in power distribution, automation systems, telecommunications, construction, manufacturing, and energy industries.

Q: Can you provide custom cutouts and internal layouts?

A: Yes, we can provide custom holes, cutouts, cable entries, mounting plates, and internal layouts according to technical drawings.

We're well-known as one of the leading sheet metal manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy durable sheet metal made in China here from our factory. We also accept customized orders.