Sheet Metal Bending
The Junction Box is an impeccably crafted enclosure meticulously designed to safeguard electrical connections,wiring,and terminals from detrimental external elements such as dust,moisture,and mechanical damage.These robust boxes are typically constructed from premium sheet metal, fabricated with advanced techniques like laser cutting,precision stamping,and expert bending.
Sheet Metal Bending Process
A carefully calculated force is strategically applied to a metal sheet, expertly deforming it into the precise shape desired.
This sophisticated process is generally executed using a state-of-the-art press brake machine,which skillfully utilizes a punch and die to create exact, precise bends.
Bending can be skillfully performed on materials such as stainless steel,aluminum,galvanized steel,and other high-quality alloys.
Material Selection
Mild Steel (MS):A strong and cost-effective choice,requires surface treatment for enhanced rust protection.
Stainless Steel (SS304/SS316):Highly corrosion-resistant,making it ideal for outdoor and industrial applications.
Aluminum:Lightweight yet corrosion-resistant,perfect for electrical and aerospace applications.
Galvanized Steel:Pre-coated for outstanding rust resistance,specially suitable for high-moisture environments.
Standard Sizes
Typically available in sizes ranging from 100x100x50 mm to 400x400x200 mm,but they can be custom-tailored to meet specific needs.
Includes expertly engineered mounting flanges or brackets for seamless installation.
Features & Components
Pre-cut Knockouts for streamlined cable entry (available in round,square,or conduit-friendly designs).
Lid equipped with hinges or secure screw fasteners for convenient maintenance.
Gasket Sealing (IP65/IP66 Rated) ensures superior waterproof and dustproof protection.
Earth/Grounding Terminals incorporated to prevent electrical hazards effectively.

Parameter |
Specification |
Material |
Stainless Steel (SS304/SS316) / Galvanized Steel / Aluminum |
Finish |
Powder Coated / Brushed / Electro-galvanized |
Ingress Protection (IP Rating) |
IP65 / IP66 (Waterproof) / IP54 (General use) |
Mounting |
Wall-Mounted / Floor-Mounted |
Cover Type |
Hinged / Screw-On |
Door Locking |
Quarter Turn Lock / Screw Cover / Key Lock |
Gasket Type |
Neoprene / Silicone (for waterproof sealing) |
Cable Entry |
Pre-punched Knockouts / Custom Drilled Holes |
Certifications |
UL, CE, RoHS, ISO 9001 |
Standard Dimensions |
(For reference; actual sizes can be customized.) |
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Model No. |
Width (mm) |
Height (mm) |
Depth (mm) |
Material Thickness(mm) |
JB-200x200x100 |
200 |
200 |
100 |
1.5mm |
JB-300x300x150 |
300 |
300 |
150 |
1.5mm / 2mm |
JB-400x400x200 |
400 |
400 |
200 |
2mm |
JB-500x500x250 |
500 |
500 |
250 |
2mm / 2.5mm |
JB-600x600x300 |
600 |
600 |
300 |
2.5mm |
Electrical & Environmental Ratings
Operating Temperature: -40°C to +80°C - This robust temperature range ensures our Durable Aluminum Sheet Metal Junction Box can withstand extreme conditions, making it ideal for aerospace and electronics applications.
Dielectric Strength: 1000V AC for 1 minute - Experience superior protection and reliability with our junction box that boasts impressive dielectric strength, ensuring safety and performance in demanding environments.
Grounding Option: Integrated grounding stud - Elevate your grounding solutions with our smartly designed junction box, featuring an integrated grounding stud for enhanced safety and ease of installation.
Corrosion Resistance: Salt spray tested for marine environments - Uncompromising durability with our junction box, expertly tested to resist corrosion even in harsh marine conditions, ensuring long-lasting performance.
Load Capacity: Up to 50kg (varies by size and material) - Tailor your solutions with our versatile junction box, capable of supporting loads up to 50kg, adapting seamlessly to your specific needs and applications.
Applications of Sheet Metal Junction Boxes
Electrical Wiring Enclosures (Residential & Industrial) - Secure and organize your electrical wiring with precision, using our junction boxes crafted for both residential and industrial environments.
Control Panels & Automation Boxes - Optimize your control panel setups with our junction boxes, designed to offer streamlined integration in automation systems.
Outdoor & Marine Equipment Protection - Protect your outdoor and marine equipment from environmental elements with our rugged junction boxes, engineered for maximum resilience.
Data & Communication Networks - Enhance your data and communication networks by utilizing our junction boxes, ensuring secure and efficient management of network components.

Sophisticated Fabrication Process
Step 1: Precision Laser Cutting (Sheet Metal Cutting)
Utilizing advanced fiber or CO2 laser technology, our process meticulously sculpts the metal sheet into a perfectly flat layout.
Meticulous Cuts Include:
Outer Profile:Crafts the definitive shape of the junction box with precision.
Cable Knockouts & Vent Holes:Engineered for effortless wiring access, expertly pre-cut to perfection.
Mounting Holes:Designed for seamless wall or pole installation.
Unparalleled Advantages: Exceptional high precision,immaculately clean edges,and remarkably minimal material wastage.
Step 2: Advanced Stamping & Punching (Creating Knockouts & Embossing)
Employs precision stamping dies or state-of-the-art CNC punching machines to:
Craft knockout holes for seamless integration of conduit or cable glands.
Intricately add embossed labels or markings, including grounding symbols,and critical electrical ratings.
Enhance panel strength with strategically designed reinforcement ribs.
Notable Advantages: Accelerated processing speeds and impeccably uniform hole placement.
Step 3: Precision Bending & Forming (Shaping the Box)
Using a high-precision press brake machine, the metal sheet is expertly formed into a robust 3D box structure.
Standard Bends Include:
Perfect 90° bends to elegantly form the sides.
Tabs & Slots meticulously designed for precise alignment and effortless assembly.
Innovatively engineered Hinges & Brackets for secure cover attachment.
Key Considerations:
Bend radius must be precisely tailored to match material thickness, ensuring flawless integrity without cracking.
The strategic order of bending guarantees smooth assembly without any interference.
Step 4: Expert Assembly & Fastening
Professional Welding Techniques (Spot or TIG Welding):Expertly fuses corners to achieve a seamless and polished finish.
Rivets or Screws:Deployed when a detachable cover is a desired feature.
Gaskets & Seals:Provide superior IP-rated waterproof protection, ensuring durability.
Optional Premium Add-ons:
Robust cable clamps,high-quality grounding terminals,and versatile interior mounting plates.
Step 5: Advanced Surface Finishing (Protection & Aesthetics)
Durable Powder Coating:Provides superior rust resistance,offered in a vibrant array of colors.
Expert Galvanizing:Applies a protective zinc coating for unmatched corrosion resistance.
Anodizing (for Aluminum):Enhances both durability and aesthetic appeal, adding a lustrous finish.
Electroplating (for Stainless Steel): This advanced process enhances the durability and appearance of stainless steel surfaces.:Improves electrical conductivity: Elevate your equipment's performance with our solution, engineered to enhance electrical pathways efficiently.

Precision: Our unwavering commitment is to deliver precision-engineered components that not only meet but often exceed our esteemed customers' expectations.
Innovation: We are at the forefront of embracing cutting-edge technological advancements, ensuring continual enhancement of our processes and our exceptional product offerings.
Integrity: We uphold the highest ethical standards in every aspect of our business, building trust and fostering enduring partnerships with our valued clients.
Custom Manufacturing: We provide bespoke manufacturing solutions crafted to address unique specifications and diverse application requirements.
Prototyping: Our rapid prototyping capabilities are designed to streamline product development and facilitate effective testing.
Surface Finishing: We offer a wide array of comprehensive surface treatment options, including polishing, anodizing, and plating, all aimed at enhancing both aesthetics and functionality.



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