Finding the right custom sheet metal enclosure manufacturer can make or break a hardware project. Whether you are sourcing an energy storage cabinet, a charging pile enclosure or a precision chassis, the manufacturer's capabilities, materials and quality systems directly determine your product's cost, lead time and reliability.
What a Sheet Metal Enclosure Manufacturer Does
A sheet metal enclosure manufacturer turns your drawings — or even just an idea — into a finished metal housing. The best partners offer one-stop OEM/ODM service: they take your concept, engineer it for manufacturability (DFM), fabricate the parts through cutting, bending, welding and finishing, then assemble and inspect the final product before shipping.
Six Product Lines We Fabricate
SanJun Hardware specializes in enclosures and structural parts across six categories:
- New energy charging — AC/DC charging pile enclosures and supporting sheet-metal parts.
- Energy storage & power — BESS cabinets, PV/wind supporting parts and high/low-voltage distribution cabinets.
- Industrial HMI & monitor — kiosk, education display, digital signage and industrial monitor housings.
- Telecom & network — fiber-optic boxes, network device chassis and communication cabinets.
- Industrial control — equipment chassis, control cabinets and custom precision structural parts.
- Outdoor security & municipal — protection boxes, control boxes and outdoor cabinet supporting parts.
Why Choose a China-Based Manufacturer
China has the densest and most mature sheet-metal supply chain in the world. Working with a Shenzhen-based manufacturer gives you competitive unit costs, a deep pool of materials and surface-finish options, and fast prototyping. The key is choosing a partner with engineering capability and a documented quality system, rather than a low-cost fabricator with no process control.
Capabilities That Matter
Look for a manufacturer that can handle the full process in-house. SanJun runs nine controlled steps — free drawing design and DFM, laser cutting, precision bending, forming, welding, grinding and deburring, riveting, electrostatic powder coating, and final assembly with QC. In-house control of every step means fewer hand-offs, tighter tolerances and shorter lead times.
Material selection matters just as much. We work with cold-rolled steel, stainless steel and aluminum, and offer surface finishes including powder coating, anodizing and laser perforation, with ingress protection from IP54 up to IP66.
Quality & Certifications
Reliable manufacturers back their work with certifications. SanJun is managed under ISO 9001 (quality) and ISO 14001 (environmental) systems, and we test ingress protection to IP54–IP66 while ensuring RoHS/REACH material compliance. Every batch is inspected before shipping.
How to Start Your Project
Send us your drawings or requirements — our engineers provide free CAD and DFM to optimize cost and manufacturability. Standard parts ship in 7–15 working days; complex custom builds in 20–30 days.
Need a custom enclosure? Send your drawings today and get a quotation within 24 hours.