Sheet Metal Box Fabrication
Your Professional Sheet Metal Box Fabrication Supplier
Qingdao Keysmile Valves Co. Ltd. is a diversified manufacturing company located in the Environmental Protection Industrial Park of Jimo District, Qingdao, China. Our core expertise and primary focus lie in precision sheet metal fabrication and marine valves.
We specialize in the production of high-quality hardware components and parts for a wide range of industries. Our capabilities include crafting components from various materials, including steel, iron, steel, and aluminum, through processes like cutting, bending, punching, and assembling. We are particularly well-known overseas for manufacturing various brackets, charging piles, furniture hardware, public facilities industry, various cabinets, trailer compartments, etc.
Why choose us
Comprehensive Quality System Assurance
The company is ISO 9001 certified and strictly implements process control and data traceability. From raw material inspection and production monitoring to final product testing, detailed records are kept to ensure consistent quality and a high pass rate for every batch.
High-Precision Machining and Reliable Performance
Equipped with advanced CNC machining equipment and testing instruments, and supported by an experienced technical team, we can achieve micron-level precision control. Our metal components meet the stringent requirements of European and American customers in terms of strength, wear resistance, and dimensional accuracy.
Efficient and Stable Delivery Capability
With a lean production system and intelligent scheduling management, we ensure visualization and efficient coordination throughout the production process. Even for large-volume orders, we guarantee on-time delivery and stable quality, meeting the continuous supply demands of long-term partners.
Flexible Customization and Technical Support
We not only process parts according to customer drawings (DWG, STEP, PDF, etc.), but also provide structural optimization and process improvement suggestions to help customers reduce costs and improve assembly efficiency — Truly delivering a one-stop service from prototyping to mass production.
Product Description
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Place of Origin |
Qingdao, China |
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Model Number |
KS-021 |
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Product name |
Electrical Junction Boxes |
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Material |
Alu. or other metals |
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Application sites |
Interior and Exterior |
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Size |
Customized Size |
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Color |
Black/ White/ gray/ Brown/ Customized |
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Surface treatment |
Powder coating, bead blasting, anodizing, electroplating, polishing , brushing , painting , screen printing etc |
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Service |
Customized OEM |
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Type |
OEM products |
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Transport Package |
Wooden Crate |
Features
Safety
Prevents accidental contact with live wires.
Reduces risks of short circuits and fire hazards.
Durability
Protects connections from dust, dirt, and moisture.
Extends the service life of electrical systems.
Compliance
Meets building codes and standards (e.g., NEC, NEMA, IEC).
Essential for passing inspections in residential and industrial projects.
Ease of Maintenance
Allows electricians to troubleshoot circuits quickly.
Provides organized wiring points for expansion or repair.
Purpose and function
Protection: Boxes protect vulnerable wire connections from dust, moisture, physical damage, and accidental contact.
Safety: By enclosing splices, junction boxes reduce the risk of sparking, overheating, electrical shorts, and fire.
Accessibility: They provide a safe, accessible point for maintenance or modifications, while also hiding and organizing wiring.
Distribution: They act as connection points where power from the main panel is distributed to other parts of a building's electrical system.
There are lots of different types of junction boxes that can be divided into several categories:
By Material
Metal Junction Box. It is sturdy, durable, and excellent for protection against physical damage. It is also ideal for industrial and outdoor applications where robust protection is needed or in areas with high humidity or risk of fire.
Plastic Junction Box. It is lightweight, cost-effective, and resistant to corrosion. It is commonly used in residential and some commercial applications where protection against moisture and dust is sufficient.
By Shape
Rectangular Junction Box. It is typically larger, with straight sides for accommodating multiple cable connections. This box is suitable for organizing and securing numerous wires in commercial and industrial settings.
Square Junction Box. This box is compact and versatile, with equal sides. It is often used in residential and smaller-scale applications for electrical connections.
Round Junction Box. It has a circular shape with a cover that screws on. Commonly used for wiring connections, especially when routing conduit or cables in tight spaces.
By Utility
Conduit Junction Box. It is designed to house electrical conduits and protect wires from external elements. It is necessary when running electrical conduit systems to protect and organize wires in industrial and commercial installations.
Cable Junction Box. It is designed for cable connections and wire splicing. It is suitable for residential and smaller-scale electrical installations where cables are used instead of conduits.
Safety Ratings for Junction Boxes
NEMA Ratings
The environmental ratings for junction boxes are determined by The National Electrical Manufacturers Association (NEMA). NEMA ratings range between 1 and 13. Each rating represent a certain degree or level of protection.
IP Ratings
IP (Ingress Protection) ratings determine how well junction boxes can protect themselves against solid objects and water. The first number in the IP rating on enclosure indicates the protection level of solids. The higher the number, the safer the junction box.
UL Ratings
The Underwriter Laboratories, or UL Ratings, organize the junction boxes based on safety level and quality. Meanwhile, the UL enclosure ratings start from 1 and end at 13, each rating for a certain level of protection. You need to understand all these ratings before you buy a junction box because they are not progressive. The higher scores usually equal a better level of security.
FAQ
We're professional sheet metal box fabrication manufacturers and suppliers in China, specialized in providing high quality customized service and OEM service. We warmly welcome you to buy high precision sheet metal box fabrication at the best price from our factory.
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