SanJun Hardware built 900 sheet metal enclosures for a leading ultrasonic power supply maker, covering high-power industrial cleaners and precision laboratory models. Each chassis balances ≥45 dB EMI shielding, ≤50°C thermal control and sub-0.1mm digital-panel fit, so high-frequency generators run stably and cleaning parameters stay precise.
Precision-engineered high-power electronic power supply enclosures built to your exact specifications
From initial concept to final delivery –every detail of this custom fabrication project
As precision cleaning grows across automotive, electronics and aerospace, a leading ultrasonic power supply manufacturer needed 900 enclosures for two product lines: high-power industrial units for batch cleaning and compact laboratory units for micro-components. Stable high-frequency output was the priority.
High-power generators radiate heat and EMI at the same time. Larger cooling holes killed shielding, thermal expansion shifted digital panels, and continuous operation shook components loose. Humid cleaning workshops also corroded housings.
The central trade-off was shielding versus cooling. A dual-layer rear panel with Φ2mm honeycomb holes and internal aluminum guide rails let hot air escape while preserving attenuation. Positioning pins locked the digital panel against thermal drift.
SanJun used conductive zinc-plated SPCC for the chassis, brushed 304 stainless for the bezel and an aluminum partition with ceramic coating between power and control sections. Conductive foam and welded grounding tabs formed a continuous shielding loop, while anti-vibration pads isolated power modules.
The 900 sets shipped three days early with a 100% pass rate in EMC, thermal and fit tests. Across 200+ workshops and 60+ labs over eight months, there were zero EMI, overheating or loosening incidents.
SanJun’s deep understanding of ultrasonic power supply characteristics and rigorous precision manufacturing made the partnership work.
Eight reasons global brands partner with SanJun Hardware for precision sheet metal fabrication
Quality-managed production with documented processes and full traceability at every stage.
Streamlined scheduling and capacity planning ensure your orders ship when promised.
Expert design-for-manufacturing review at no cost –optimize your design before production.
Sheet metal ±0.1mm and CNC machining ±0.01mm –consistent accuracy across every batch.
From laser cutting and bending to welding, coating and assembly –all under one roof.
CMM inspection, coating adhesion tests, and 100% final inspection before every shipment.
Prototypes from 1 unit to production runs of 10,000+ –scalable capacity to match your needs.
Work directly with our engineering team –fast responses, clear updates, no middlemen.
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