Sheet Metal Bending
The Junction Box provides a robust enclosure designed to safeguard vital electrical connections,wiring,and terminals from external intrusions such as dust,moisture,and mechanical damage, ensuring longevity and reliability..These junction boxes are expertly crafted from high-quality sheet metal, employing advanced techniques like laser cutting,stamping,and precise bending.
Sheet Metal Bending Process
A meticulous process where force is applied to a metal sheet, allowing it to be shaped into the desired configuration.
This is typically achieved using a sophisticated press brake machine,which employs a punch and die system to create accurate bends.
Bending can be effectively 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 to resist rust.
Stainless Steel (SS304/SS316):Exceptional corrosion resistance,perfect for outdoor applications and demanding industrial environments.
Aluminum:Notable for its lightweight and corrosion-resistant properties,ideal for electrical and aerospace sectors.
Galvanized Steel:Features a pre-coated layer for enhanced rust resistance,well-suited for environments with high moisture exposure.
Standard Sizes
Typically range from 100x100x50 mm to 400x400x200 mm,but can be tailored to custom dimensions for specific needs.
Includes essential mounting flanges or brackets to facilitate seamless installation.
Features & Components
Pre-cut Knockouts for convenient cable entry (available in round,square,or conduit-friendly shapes).
Lid equipped with hinges or screw fasteners for effortless maintenance access.
Gasket Sealing (IP65/IP66 Rated) delivers superior waterproof and dustproof protection.
Earth/Grounding Terminals ensure safe operation by preventing 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: Guaranteed to perform in diverse environments, it operates reliably from a frosty -40°C to a sizzling +80°C.
Dielectric Strength: Engineered to withstand rigorous conditions, it boasts a dielectric strength of 1000V AC for a full minute, ensuring safety and durability.
Grounding Option: Featuring a built-in, integrated grounding stud, this product ensures secure and efficient grounding.
Corrosion Resistance: Designed for longevity, it has been salt spray tested, making it ideal for harsh marine environments.
Load Capacity: Designed to support a substantial load, it can handle up to 50kg, depending on its size and material composition.
Applications of Sheet Metal Junction Boxes
Perfect for Electrical Wiring Enclosures, both in residential and industrial settings, ensuring organized and safe installations.
Ideal for Control Panels & Automation Boxes, providing robust protection and arrangement for intricate systems.
Outstanding for Outdoor & Marine Equipment Protection, safeguarding equipment against harsh environmental elements.
Seamlessly integrates into Data & Communication Networks, offering optimal protection and connectivity.

Fabrication Process
Step 1: Laser Cutting (Sheet Metal Cutting)
Employing either fiber or CO2 lasers, this process skillfully slices the metal sheet into a pristine, flat configuration, setting the stage for the junction box's creation.
Cuts include:
Outer Profile:This defines the precise and elegant shape of the junction box.
Cable Knockouts & Vent Holes:Pre-cut openings facilitate seamless wiring access, ensuring efficiency.
Mounting Holes:Designed for effortless installation on walls or poles.
Advantages: High precision,with clean, immaculate edges,and minimal material wastage, making it both efficient and eco-friendly.
Step 2: Stamping & Punching (Creating Knockouts & Embossing)
Utilizing stamping dies or CNC punching machines to expertly:
Craft knockout holes (ideal for conduit or cable glands).
Incorporate embossed labels or markings (such as grounding symbols,and electrical ratings).
Strengthen the panels by integrating reinforcement ribs, enhancing durability.
Advantages: Rapid processing times and consistent hole placement ensure reliability.
Step 3: Bending & Forming (Shaping the Box)
With precision, a press brake machine transforms the metal sheet into a robust 3D box structure.
Typical bends:
90° bends meticulously form the sides, ensuring structural integrity.
Tabs & Slots are used for precise alignment and seamless assembly.
Hinges & Brackets ensure the cover is securely fastened and easily accessible.
Considerations:
The bend radius must match material thickness to avert cracks, ensuring longevity.
The strategic order of bending promotes smooth assembly without any interference.
Step 4: Assembly & Fastening
Welding (Spot or TIG Welding):This fuses corners flawlessly, providing a seamless and polished finish.
Rivets or Screws:Employed if a detachable cover is desired, offering flexibility.
Gaskets & Seals:Ensure IP-rated waterproof protection, enhancing reliability in variable conditions.
Optional Add-ons:
Cable clamps,grounding terminals,and interior mounting plates add versatility and functionality.
Step 5: Surface Finishing (Protection & Aesthetics)
Powder Coating:Provides rust resistance,and is available in a variety of colors to suit aesthetic preferences.
Galvanizing:Drapes the product in a zinc coating, offering robust corrosion protection.
Anodizing (for Aluminum):Experience unparalleled durability and aesthetics with our Stainless Steel Sheet Metal Fabrication Junction Box, meticulously crafted to elevate both form and function.
Transform your junction box with our state-of-the-art Electroplating process, specifically designed for enhancing the resilience and gleam of Stainless Steel.:Optimize electrical performance with our advanced techniques that significantly enhance conductivity, ensuring peak efficiency and reliability.

Precision Engineering: We are committed to delivering precision-engineered components that consistently meet or surpass our valued customers' expectations.
Innovative Solutions: We embrace cutting-edge technological advancements to continuously enhance our processes and elevate our product offerings.
Integrity and Trust: We uphold the highest ethical standards in all our business dealings, fostering trust and building long-term partnerships with our esteemed clients.
Custom Manufacturing Expertise: We provide tailored solutions expertly designed to meet unique specifications and diverse application requirements.
Advanced Prototyping: Our rapid prototyping capabilities are designed to facilitate seamless product development and efficient testing.
Exquisite Surface Finishing: We offer comprehensive surface treatment options, including polishing, anodizing, and plating, to enhance both aesthetics and functionality of our products.



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