SanJun Hardware manufactures multi-size electrostatic powder coated wall-mounted electrical enclosures for outdoor, factory and commercial mall use.
Many buyers struggle with no ready drawings, high outsourced design fees and ill-fitting standard boxes that fail dustproof performance. Our veteran sheet metal engineers solve all troubles: we provide 100% free customized structural drawings, full DFM manufacturability analysis & unlimited design revisions based on your mounting size, wiring layout and IP protection demands. No drawing preparation required on your side.
We independently finish sketches, dimension drawings, structural inspection and final production drawings, cutting your R&D cycle, design costs and trial risks. All boxes adopt full sealing dustproof structure, uniform electrostatic powder coating with strong rust resistance, available in dozens of standard sizes plus full custom customization.
✅ Free Custom Drawing Design, No Drawings Needed From You
Only share your installation dimensions, internal wiring layout, application environment and protection requirements. Our professional engineering team completes all design work from concept sketch, detailed dimension drawing, structural rationality check to formal production drawing at zero cost. Multiple rounds of drawing optimization & revision are supported until fully matching your wiring and assembly demands. Eliminate expensive external design outsourcing and extra R&D workload for your team.
✅ Professional DFM Manufacturability Optimization
We conduct full DFM review at the design stage, optimize unreasonable box structures that cause poor sealing, dust leakage, difficult wiring or high material cost. Avoid post-sampling rework, lower your overall production cost and reduce field failure risks caused by bad enclosure design.
✅ Premium Dustproof & Anti-Rust Electrostatic Powder Coating
Full cold-rolled steel welded body with integrated foam sealing strip to reach IP54/IP65 dustproof grade, effectively blocking dust intrusion in factory and outdoor environments. Uniform electrostatic powder spraying process forms a thick anti-corrosion coating, resisting rust, scratch and UV aging for long-term outdoor service life.
✅ Abundant Standard Sizes + Full Customization
Dozens of ready standard sizes for quick sampling & delivery; fully customizable dimension, door lock, mounting plate, cable knockouts, surface color and IP protection grade to fit industrial workshop, shopping mall power distribution, outdoor monitoring wiring and automation control scenarios.
✅ Flexible MOQ & Fast Lead Time
Support 1-piece prototype and bulk mass orders. 24H DFM review & quotation, sampling within 7 working days, mass production finished in 10–15 days based on quantity.
