Sheet Metal Bending
The Junction Box is an essential enclosure designed to safeguard electrical connections,wiring,and terminals from harmful external elements such as dust,moisture,and mechanical damage.These robust boxes are frequently crafted from durable sheet metal and can be expertly fabricated using advanced techniques like laser cutting,stamping,and precision bending.
Sheet Metal Bending Process
A meticulous force is applied to the metal sheet, transforming it into the specific desired shape.
This is usually executed with a state-of-the-art press brake machine,employing a punch and die to achieve accurate and precise bends.
Bending can be effectively carried out on materials like stainless steel,aluminum,galvanized steel,and various other alloys.
Material Selection
Mild Steel (MS):Renowned for its strength and cost-effectiveness,although it requires surface treatment to prevent rust.
Stainless Steel (SS304/SS316):Known for its excellent corrosion resistance,making it ideal for both outdoor and demanding industrial applications.
Aluminum:Esteemed for being lightweight and corrosion-resistant,commonly utilized in electrical and aerospace sectors.
Galvanized Steel:Pre-coated to enhance rust resistance,perfectly suited for environments with high moisture levels.
Standard Sizes
Typically available in dimensions ranging from 100x100x50 mm to 400x400x200 mm,with the flexibility for custom sizing options.
Equipped with mounting flanges or brackets for easy installation.
Features & Components
Pre-cut Knockouts designed for seamless cable entry (available in round,square,or conduit-friendly options).
Lid equipped with Hinges or Screw Fasteners ensuring easy maintenance accessibility.
Gasket Sealing, rated IP65/IP66, provides superior waterproof and dustproof protection.
Earth/Grounding Terminals strategically included to mitigate electrical hazards and ensure safety.

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: Our junction boxes are engineered to withstand demanding environments, ensuring exceptional performance and safety in both residential and industrial settings.
Operating Temperature Range: Designed for versatility, this product reliably operates in extreme conditions, from a chilling -40°C to a scorching +80°C.
Dielectric Strength: Our junction boxes are built to endure, withstanding 1000V AC for a full minute, ensuring safety and reliability in high-voltage applications. 1000V AC for 1 minute
Grounding Option: Enhance safety with our integrated grounding stud, providing a secure and efficient grounding solution. Integrated grounding stud
Corrosion Resistance: Engineered to resist the harshest conditions, our products have been rigorously salt spray tested, making them perfect for marine environments. Salt spray tested for marine environments
Load Capacity: Built to support significant loads, our junction boxes can handle up to 50kg, though this varies by specific size and material selection. Up to 50kg (varies by size and material)
Applications of Sheet Metal Junction Boxes: Discover the versatility of our junction boxes, suitable for a wide array of applications, providing robust protection and organization.
Electrical Wiring Enclosures (Residential & Industrial): Ideal for securely housing electrical wiring, safeguarding connections in any setting.
Control Panels & Automation Boxes: Perfect for organizing control panels and housing automation systems with precision.
Outdoor & Marine Equipment Protection: Offering durable protection for outdoor and marine equipment, ensuring longevity and performance.
Data & Communication Networks: Ensures optimal protection and organization of data and communication networks, enhancing system efficiency and security.

Masterful Fabrication Process
Step 1: Precision Laser Cutting (Sheet Metal Cutting)
Harnessing the power of advanced fiber or CO2 lasers, our process meticulously sculpts metal sheets, transforming them into precise flat layouts.
Cutting Features Include:
Outer Profile Delineation:Skillfully defines the distinct shape of your junction box.
Pre-Designed Cable Knockouts & Vent Holes:Strategically pre-cut to facilitate effortless wiring access.
Secure Mounting Holes:Expertly prepared for seamless wall or pole installation.
Cutting Edge Advantages: Unmatched precision,impeccably clean edges,and optimal material efficiency with minimal wastage.
Step 2: Expert Stamping & Punching (Creating Knockouts & Embossing)
Utilizing high-performance stamping dies or CNC punching machines to expertly:
Create precision knockout holes for conduit or cable glands.
Imprint essential embossed labels or markings (grounding symbols,electrical ratings) with finesse.
Enhance structural integrity with reinforced panels featuring ribs.
Advantages: Swift processing ensuring consistent and uniform hole placement.
Step 3: Precision Bending & Forming (Shaping the Box)
Our state-of-the-art press brake machine expertly bends metal sheets, crafting a robust 3D box structure.
Typical Bending Techniques:
Precision 90° bends for definitive side formation.
Innovative Tabs & Slots ensuring perfect alignment and assembly.
Secure Hinges & Brackets for reliable cover attachment.
Key Considerations:
Bend radius meticulously matches material thickness to prevent any cracks.
The strategic order of bending guarantees flawless assembly without interference.
Step 4: Meticulous Assembly & Fastening
Seamless Welding (Spot or TIG Welding):Flawlessly fuses corners, creating a polished, seamless finish.
Durable Rivets or Screws:Employed when a detachable cover is preferred for versatility.
Reliable Gaskets & Seals:Ensure IP-rated waterproof protection, safeguarding contents.
Optional Enhanced Add-ons:
Robust Cable clamps,efficient grounding terminals,versatile interior mounting plates.
Step 5: Exquisite Surface Finishing (Protection & Aesthetics)
Premium Powder Coating:Offers exceptional rust resistance,available in a spectrum of color options to suit any aesthetic.
Durable Galvanizing:Provides a robust zinc coating for superior corrosion protection.
Elegant Anodizing (for Aluminum):Our pioneering fabrication process significantly enhances both the durability and the aesthetic appeal of our products, ensuring lasting performance and a sleek, polished look that stands the test of time.
Electroplating (for Stainless Steel): Experience the superior benefits of our electroplating process, specifically designed for stainless steel, to provide exceptional protection and a brilliant, lustrous finish.:Enhances Electrical Conductivity: Through meticulous engineering, our products are designed to significantly boost electrical conductivity, ensuring optimal performance and efficiency in every application.

Precision: Our unwavering commitment to precision-engineered components ensures that we consistently meet, and often exceed, the high expectations of our valued customers.
Innovation: By wholeheartedly embracing the latest technological advancements, we are dedicated to continuously refining our processes and enhancing our product offerings.
Integrity: We are steadfast in upholding the highest ethical standards across all business practices, which fosters trust and cultivates enduring partnerships with our esteemed clients.
Custom Manufacturing: We provide tailored manufacturing solutions designed to meet the unique specifications and diverse application requirements of each client.
Prototyping: Our rapid prototyping capabilities are designed to streamline product development and facilitate effective testing.
Surface Finishing: We offer a comprehensive array of surface treatment options, including polishing, anodizing, and plating, to enhance both the aesthetic appeal and functional performance of our products.



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