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From component qualification to automated packaging, every switching power supply manufactured by Zhejiang Harlon Electronic Co., Ltd. strictly adheres to documented ISO 9001 standard operating procedures to eliminate defects at each phase.
100% incoming material QA (IQC) for transformers, electrolytic capacitors, IC controllers, and PCBs from qualified Tier-1 supply partners.
High-precision SMT pick-and-place lines mount miniature resistors, capacitors, diodes, and SMD ICs with exact alignment and zero cold joints.
Heavy magnetics, primary power transformers, inductors, and high-voltage filter capacitors inserted via automated inserting machines and skilled operators.
Nitrogen-shielded wave soldering systems guarantee uniform solder joints, maximum mechanical strength, and minimal thermal stress on PCBA components.
Precision calibration of DC output voltage, over-current trip points, and feedback loop stability using digital multi-meters and electronic loads.
Careful mounting into metal cages, aluminum extrusions, or potted waterproof housings with thermal conductive pads and safety insulation film.
100% of manufactured units endure 4 to 8 hours of continuous 100% load burn-in under controlled ambient temperatures to filter infant mortality defects.
Automated test stations perform 3000VAC hi-pot insulation checks, grounding continuity, line/load regulation, short circuit, and OVP safety checks.
Laser or barcode model labeling, anti-static bubble packaging, reinforced moisture-barrier export cartons, and pallet strapping ready for worldwide freight.
Covering over 10,000 m² in Wenzhou, Zhejiang, our high-capacity production facility utilizes automated surface mount, wave soldering, automatic glue dispensing, and specialized packaging equipment.
Computer-controlled pre-heating curves and dual-wave solder pots ensuring high-yield lead-free soldering for thick copper PCBA power boards.
High Reliability Soldering
Automated high-speed insertion for axial and radial components, drastically reducing human error and boosting daily board production volume.
High Efficiency Insertion
High-precision optical vision feeders handling 0402 micro-components up to complex multi-pin power ICs with repeatable accuracy.
Precision SMD Placement
Precise two-component epoxy/silicone potting dispenser for IP67/IP68 waterproof LED drivers, preventing void bubbles and heat entrapment.
IP67/IP68 Silicone Potting
Automated product heat-sealing, blister packaging, and outer carton tape sealing designed for rapid, standardized export orders.
Safe Export Packaging
Continuous conveyor assembly line synchronized for multi-stage modular power supply builds, boasting daily capacities exceeding thousands of units.
10+ Dedicated Lines
Integrated solder paste printing, automatic optical inspection (AOI), pick-and-place, and multi-zone reflow ovens operating seamlessly.
Automated Surface Mount
Accurate nameplate positioning with batch numbering, electrical parameter verification, and customized OEM client branding.
Traceable OEM Labels
Ergonomic mechanical clamping, screwdriving fixtures, and automated wire routing systems designed to boost throughput and maintain repeatability.
High Uniformity AssemblyZhejiang Harlon Electronic Co., Ltd. operates an independent laboratory equipped with specialized electromagnetic, environmental, surge, and mechanical stress test systems to safeguard your supply chain.
Programmable multi-channel load cabinets executing prolonged full-load dynamic cycling.
Thermal stress verification from -40°C to +85°C to assure dependable cold start and high-temp derating.
Simulates AC line lightning spikes and high-voltage line surges up to 6kV for outdoor industrial resilience.
High-bandwidth monitoring of transient switching spikes, MOSFET Vds voltages, and output ripple & noise.
Multi-axis sinusoidal and random mechanical vibration testing simulating demanding industrial machinery and transit.
RF-isolated Faraday enclosure screening out ambient electromagnetic interference for precision EMC scans.
Validates protective earth ground bonding resistance under high test current (<0.1Ω compliance).
Conducted electromagnetic interference analysis in full alignment with EN 55032 and FCC Class B limits.
Unified electrical measurement of power factor, input wattage, active efficiency, and hold-up timing.
High-current constant current (CC), constant resistance (CR), and dynamic pulse mode profiling.
Dielectric withstand hi-pot testers providing primary-to-secondary isolation ratings up to 3750VAC.
Computer-integrated end-of-line ATE system automatically logging test parameters for total lot traceability.
High-resolution AOI camera scanner pinpointing solder bridging, component polarity errors, and tombstoning.
Factory facilities, manufacturing lines, and management practices thoroughly assessed on-site by SGS Group.
Every single power supply unit passes dynamic thermal aging under full rated load before final sign-off.
Batch-coded serial tracking linking incoming raw materials directly to automated test records.
Over 18 years of ODM/OEM engineering experience adapting topology, form factor, and protective thresholds.
Connect with our technical sales engineers at Zhejiang Harlon Electronic Co., Ltd. for factory audit arrangements, component datasheets, or custom power supply design inquiries.