Sheet Metal Bending
The Junction Box is a robust enclosure meticulously crafted to safeguard electrical connections,wiring,and terminals from external threats such as dust,moisture,and mechanical damage.These junction boxes are often constructed from high-quality sheet metal and are expertly fabricated using advanced techniques such as laser cutting,stamping,and bending.
Sheet Metal Bending Process
In this precise process, a calculated force is applied to a metal sheet to artfully deform it into the desired shape.
This shaping is typically accomplished using a high-precision press brake machine,which utilizes a punch and die to achieve precise bends.
Bending can be exquisitely performed on materials such as stainless steel,aluminum,galvanized steel,and various other alloys.
Material Selection
Mild Steel (MS):Renowned for its strength and cost-effectiveness,requires surface treatment for optimal rust protection.
Stainless Steel (SS304/SS316):Highly corrosion-resistant,ideal for both outdoor and industrial applications.
Aluminum:Exceptionally lightweight and corrosion-resistant,perfect for electrical and aerospace applications.
Galvanized Steel:Pre-coated to ensure rust resistance,well-suited for environments with high moisture.
Standard Sizes
Typically offered in a range from 100x100x50 mm to 400x400x200 mm,yet customizable to meet specific needs.
Equipped with mounting flanges or brackets for effortless installation.
Features & Components
Innovative pre-cut knockouts allow for seamless cable entry (available in round,square,or conduit-friendly designs).
The lid, available with hinges or screw fasteners, ensures easy maintenance access.
Premium gasket sealing (IP65/IP66 Rated) offers superior waterproof and dustproof protection.
Earth/grounding terminals are included to effectively prevent electrical hazards.

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: This versatile junction box is engineered to perform exceptionally well in extreme conditions, enduring temperatures from a chilling -40°C to a sweltering +80°C, ensuring reliable performance across various climates.
Dielectric Strength: Demonstrating superior electrical insulation, this box resists up to 1000V AC for a full minute, providing unmatched safety and protection for electronic applications.
Grounding Option: Featuring an integrated grounding stud, this box ensures secure and efficient grounding, enhancing safety and stability in electrical systems.
Corrosion Resistance: Expertly designed for demanding environments, this junction box has been rigorously salt spray tested to withstand the harsh conditions of marine environments, offering enduring protection against corrosion.
Load Capacity: With a robust build, this junction box supports loads up to 50kg, accommodating various sizes and materials, it provides exceptional versatility and strength for multiple applications.
Applications of Sheet Metal Junction Boxes
Perfectly suited for Residential & Industrial Electrical Wiring Enclosures, providing safe and efficient housing for crucial wiring systems.
Ideal for Control Panels & Automation Boxes, ensuring secure and organized enclosure for automated systems, enhancing operational efficiency.
Designed for Outdoor & Marine Equipment Protection, offering extensive durability and protection against environmental challenges.
A robust solution for Data & Communication Networks, ensuring reliable and secure connections in critical communication infrastructure.

Innovative Fabrication Process
Step 1: Precision Laser Cutting (Sheet Metal Cutting)
Utilizes advanced fiber or CO2 lasers to meticulously cut the metal sheet into an immaculate flat layout.
Essential Cuts Include:
Outer Profile:Defines the distinctive shape of the junction box with precision.
Cable Knockouts & Vent Holes:Expertly pre-cut for seamless wiring access.
Mounting Holes:Engineered for effortless wall or pole installation.
Unmatched Advantages: Exceptional high precision,pristine clean edges,and minimal material wastage for efficiency.
Step 2: Advanced Stamping & Punching (Creating Knockouts & Embossing)
Employs state-of-the-art stamping dies or CNC punching machines to expertly:
Create precise knockout holes tailored for conduit or cable glands.
Add sophisticated embossed labels or markings (grounding symbols,detailed electrical ratings).
Reinforce panels by strategically adding reinforcement ribs.
Key Advantages: Speeds up processing while ensuring uniform hole placement.
Step 3: Precise Bending & Forming (Shaping the Box)
A precision press brake machine expertly bends the metal sheet into a robust 3D box structure.
Typical High-Precision Bends:
90° bends meticulously form the sides.
Tabs & Slots precisely designed for alignment and seamless assembly.
Ingenious Hinges & Brackets for secure cover fastening.
Critical Considerations:
Bend radius must harmonize with material thickness to prevent cracks.
Strategic order of bending ensures smooth assembly without unwanted interference.
Step 4: Precise Assembly & Fastening Techniques
Expert Welding (Spot or TIG Welding):Beautifully fuses corners for a flawless and seamless finish.
Rivets or Screws:Ideal for scenarios requiring a detachable cover.
Gaskets & Seals:Deliver IP-rated waterproof protection with unmatched reliability.
Optional Premium Add-ons:
Versatile cable clamps,robust grounding terminals,and expertly crafted interior mounting plates.
Step 5: Superior Surface Finishing (Protection & Aesthetics)
Durable Powder Coating:Ensures long-lasting rust resistance,available in a palette of vibrant colors for any aesthetic taste.
Protective Galvanizing:Imparts a zinc coating for top-tier corrosion protection.
Elegant Anodizing (for Aluminum):This product not only enhances durability but also elevates the overall appearance, ensuring lasting performance and a sleek look.
Our electroplating service, specifically designed for stainless steel, provides a premium finish to enhance both protection and aesthetic appeal.:An essential feature is its ability to significantly improve electrical conductivity, making it a top choice for efficiency and reliability in electronic applications.

Unparalleled Precision: We are unwaveringly committed to delivering precision-engineered components that not only meet, but consistently exceed, customer expectations.
Cutting-edge Innovation: We wholeheartedly embrace technological advancements, allowing us to continuously refine our processes and elevate our products to new heights.
Unshakeable Integrity: We steadfastly uphold the highest ethical standards in all our business practices, fostering trust and nurturing long-term partnerships with our esteemed clients.
Tailored Custom Manufacturing: We offer bespoke solutions designed to meet your unique specifications and application requirements to perfection.
Swift Prototyping Expertise: Our rapid prototyping capabilities are designed to accelerate product development and testing, ensuring swift and seamless innovation.
Exquisite Surface Finishing: We provide an array of comprehensive surface treatment options, including expert polishing, anodizing, and plating, to enhance both the aesthetics and functionality of your product.



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