Custom sheet metal enclosure
We provide custom sheet metal enclosures, metal housings, sheet metal boxes, and industrial equipment shells with precision fabrication, surface finishing, and assembly support.
Strict Quality Control
Customized Solutions Per Drawings
High Precision | Tight Tolerance
Solid Structure | Durable Finish
On-time Shipment
Custom Sheet Metal Enclosures & Housings We Manufacture
From simple metal boxes to complex industrial equipment housings, we manufacture custom sheet metal enclosures based on your drawings, samples, or application requirements.
Sheet Metal Enclosures
In-house full fabrication, custom finishes, OEM/ODM supported, MOQ starts from 1 piece to bulk orders, Factory Direct Low Cost, Fast Lead Time.
Metal Equipment Housings
Precision laser cutting & bending in factory, customized per drawings for perfect equipment matching, Strict Dimensional QC, Premium Raw Material.
Electrical Enclosures
Industrial-grade robust casing, anti-corrosion treatment, custom cutouts for electrical assembly demands, Weather Resistant Build, IP Rated Option.
Industrial Control Cabinets
Thick sheet customized cabinet, flexible opening design, small trial & large-scale mass production available, Quick Sample Delivery, Competitive Cost.
Custom Metal Boxes
Full dimension customization, low MOQ 1pc for prototype, fast sampling & cost-effective factory price, Free Drawing Review, Rapid Prototyping.
Power Equipment Enclosures
Professional anti-rust powder coating, indoor & outdoor adaption, mature bulk production for power industry, Custom Hole Punching, Long Service Lifespan.
Electronic Device Housings
Ultra-tight tolerance processing, strict QC inspection to ensure seamless electronic component assembly, High Precision Machining, Zero Defect Focus.
New Energy Equipment Enclosures
Rich new energy customization experience, one-stop OEM solution from prototype to mass manufacturing, All-in-one Fabrication, Industry Verified.
Built to Your Drawings, Dimensions, and Application Needs
Sheet Metal Enclosures for Industrial Applications
Our custom metal enclosures are widely used for equipment protection, electrical control, power storage, industrial automation, display systems, and electronic devices.
Industrial Control Equipment
Custom cutout cabinet fabrication, flexible layout design, 1pc prototype to bulk OEM production.
Power & Energy Storage Equipment
Outdoor anti-corrosion powder coating, IP-rated option, robust casing for long outdoor service life.
Electronic Equipment
Micron tight tolerance machining, full in-process QC for seamless internal component fitting.
Medical Equipment
Sanitary surface finishing, strict industrial compliance, customized housings meeting medical standards.
Display & Kiosk Equipment
Precision frame bending, seamless assembly structure, fast turnaround for retail kiosk orders.
Communication equipment series
Precision custom metal enclosures, stable shielding & tailor-cut openings for signal device assembly.
New Energy Systems
Rich new-energy project experience, one-stop OEM from drawing review to finished assembly.
Automation Equipment
Cost-effective factory direct pricing, flexible opening modification for automated component setup.
Why Choose Sanjun for Custom Metal Enclosures?
China Source Factory
Direct sheet metal fabrication factory in Dongguan, China, helping customers reduce sourcing cost and improve communication efficiency.
One-Stop Fabrication
From sheet metal design support to cutting, bending, welding, surface finishing, and assembly, we provide complete manufacturing support.
Flexible Customization
We support non-standard customization, prototype samples, small batch production, and mass production.
Industrial-Grade Quality
Precision dimensions, stable structure, corrosion-resistant finish, and strict production control for industrial applications.
Send Your Drawing for a Fast Quote
Upload your 2D or 3D drawing, including material, thickness, quantity, surface finish, and application. Our team will help you check manufacturability and provide a quotation.
- Fast Response
Reply within 24 hours - Engineering Support
DFM analysis & suggestions - Competitive Price
Best cost performance - Reliable Delivery
On-time guarantee - Low MOQ Available
Support prototype order starting from 1 piece - Strict QC Inspection
Full-range multi-step quality testing before shipment - Custom Surface Finishing
Diverse coating & finish options per your requirement
How Your Custom Sheet Metal Enclosure Is Made
Drawing Review
Evaluate requirements
Material Selection
Choose materials
Cutting / Punching
Laser cutting/CNC Punching
Bending & Welding
Forming process
Surface Finishing
Coating & Plating
Assembly & Inspection
QC & Packing
Quality Control for Every Custom Enclosure
- Material inspection
- Dimension checking
- Welding quality inspection
- Surface finish inspection
- Assembly checking
- Final packaging inspection
- Tolerance verification
- Load & durability test
- Custom cutout inspection
- Random batch sampling
Custom Sheet Metal Enclosure Projects
Electrical enclosure
(Custom Electrical Enclosures)
Control cabinet
(Custom Control Cabinets)
Metal equipment housing
(Precision Equipment Housings)
Display kiosk enclosure
(Durable Kiosk Enclosures)
Battery storage enclosure
(Weatherproof Battery Enclosures)
Custom sheet metal box
(OEM Custom Metal Boxes)
What Our Customers Say
Trusted by companies worldwide for quality, reliability, and on-time delivery.
"Excellent quality and fast turnaround. The enclosures matched our drawings perfectly and the powder coating finish was flawless. Will definitely reorder."
""Sanjun has been our go-to supplier for 3 years. Their one-stop service saves us time and cost. Communication is always smooth and professional.""
""We needed custom battery enclosures in a tight timeline. Sanjun delivered on time with great quality. Their DFM suggestions also improved our design.""
Frequently Asked Questions - Custom Sheet Metal Services
These are common issues related to custom sheet metal processing. Please feel free to contact us anytime if you have any other questions.
Need a Custom Sheet Metal Enclosure Supplier in China?
Send us your drawing or project requirements. We will help you manufacture reliable custom metal enclosures with competitive factory pricing.