Sheet Metal Bending
The Junction Box serves as an essential enclosure designed to safeguard electrical connections,wiring,and terminals from harmful external factors such as dust,moisture,and mechanical damage.Typically crafted from sheet metal, these boxes can be expertly fabricated using advanced techniques like laser cutting,stamping,and bending.
Sheet Metal Bending Process
A precise force is applied to a metal sheet, skillfully deforming it into the desired shape.
This process is usually executed using a press brake machine,which efficiently uses a punch and die to form accurate and precise bends.
Bending can be adeptly performed on materials such as stainless steel,aluminum,galvanized steel,and other durable alloys.
Material Selection
Mild Steel (MS):Known for its strength and cost-effectiveness,requires surface treatment for optimal rust protection.
Stainless Steel (SS304/SS316):Renowned for its corrosion resistance,perfectly suited for outdoor and industrial environments.
Aluminum:Esteemed for being lightweight and corrosion-resistant,commonly used in electrical and aerospace sectors.
Galvanized Steel:Already pre-coated for enhanced rust resistance,ideal for environments with high moisture levels.
Standard Sizes
Standard size range is from 100x100x50 mm to 400x400x200 mm,but can be tailored to custom dimensions.
Includes convenient mounting flanges or brackets for simple installation.
Features & Components
Comes with pre-cut knockouts for easy cable entry (round,square,or conduit-friendly designs).
Equipped with a lid featuring hinges or screw fasteners for effortless maintenance.
Features gasket sealing (IP65/IP66 rated) for superior waterproof and dustproof protection.
Includes earth/grounding terminals 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: -40°C to +80°C
Dielectric Strength: 1000V AC for 1 minute
Grounding Option: Integrated grounding stud
Corrosion Resistance: Salt spray tested for marine environments
Load Capacity: Up to 50kg (varies by size and material)
Applications of Sheet Metal Junction Boxes
Electrical Wiring Enclosures (Residential & Industrial)
Control Panels & Automation Boxes
Outdoor & Marine Equipment Protection
Data & Communication Networks

Artistry in Fabrication
Step 1: Precision Laser Cutting (Sheet Metal Artistry)
Harnessing the power of advanced fiber or CO2 lasers, we sculpt the metal sheet into an impeccable flat layout.
Intricate Cuts Include:
Sculpted Outer Profile:This defines the elegant and precise shape of the junction box.
Cable Knockouts & Vent Holes:Strategically pre-cut to facilitate effortless wiring access.
Strategic Mounting Holes:Designed for seamless wall or pole installation.
Unmatched Advantages: High precision,pristine clean edges,and greatly reduced material wastage.
Step 2: Innovative Stamping & Punching (Crafting Knockouts & Embossing)
Employing the finesse of stamping dies or CNC punching machines to expertly:
Craft precise knockout holes for conduit or cable glands.
Imprint embossed labels or markings like grounding symbols,and essential electrical ratings.
Enhance panel integrity with reinforcement ribs.
Advantages: Swift processing and flawless uniformity in hole placement.
Step 3: Masterful Bending & Forming (Artful Shaping of the Box)
A sophisticated press brake machine elegantly bends the metal sheet into a precise 3D box structure.
Typical Bends:
90° bends craft the robust sides.
Tabs & Slots ensure precise alignment and effortless assembly.
Hinges & Brackets are crafted for securing the cover with stability.
Key Considerations:
Bend radius is expertly matched to material thickness to prevent any cracking.
The ordered bending process ensures a seamless assembly devoid of interference.
Step 4: Expert Assembly & Fastening
Welding (Spot or TIG Welding):For seamlessly fusing corners, achieving a flawless finish.
Rivets or Screws:Opted for when a detachable cover is desirable.
Gaskets & Seals:Ensuring IP-rated waterproof protection for peace of mind.
Optional Luxuries:
Cable clamps,grounding terminals,and interior mounting plates for enhanced functionality.
Step 5: Elegant Surface Finishing (Protection & Aesthetic Excellence)
Powder Coating:Imparts robust rust resistance,available in an array of stunning colors.
Galvanizing:Applied zinc coating for superior corrosion protection.
Anodizing (for Aluminum):Enhances durability while elevating aesthetic appeal.
Electroplating (for Stainless Steel):Remarkably enhances electrical conductivity, ensuring optimum performance and connectivity in all your critical applications.

Exemplary Precision: We are wholeheartedly committed to delivering precision-engineered components that consistently meet or surpass the expectations of our esteemed customers.
Innovative Approach: We embrace cutting-edge technological advancements to continually enhance and refine our processes and products, ensuring we are always at the forefront of innovation.
Integrity as Our Cornerstone: We are dedicated to upholding the highest ethical standards in all our business practices, fostering trust and nurturing long-term partnerships with our valued clients.
Bespoke Custom Manufacturing: Delivering tailored solutions designed to meet the unique specifications and application requirements of our clients.
Advanced Prototyping: Our rapid prototyping capabilities are designed to facilitate seamless product development and rigorous testing.
Premium Surface Finishing: We offer comprehensive surface treatment options, including expert polishing, anodizing, and plating, to enhance both the aesthetics and functionality of our products.



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