Client-Centered Engineering & Sincere Service
At Yueqing Keldan Technology Co., Ltd., sincere service is our foundational creed. We listen attentively to every client specification, requirement, and technical proposal. Our pursuit of engineering refinement and continuous feedback drives our manufacturing progress, forming the bedrock of trust we share with international partners across more than 50 countries and regions worldwide.
Customized Technical Consultation
Our dedicated power supply engineers evaluate custom electrical parameters, housing specifications, and terminal configurations to guarantee optimal performance.
100% Quality Assurance
Every single power unit undergoes thorough multi-stage testing including AOI optical scanning, manual debugging, and continuous full-load aging (burn-in) checks.
Fast Export Response
With an experienced international trade team, we deliver swift technical responses, prompt documentation handling, and secure door-to-port logistics support.
Workshop Operations & Certified Workflows
High-reliability power conversion starts with calibrated machinery and verified step-by-step assembly lines.
SMT Placement
High-precision automated surface mount component placement.
Reflow Soldering
Precision thermal profiling for durable PCB solder connections.
AOI Inspection
Automated optical verification for zero assembly defects.
Cutting & Prep
Accurate component lead preparation and cutting.
Manual Welding
Expert manual soldering for rugged transformers and heat sinks.
Assembly Line
Standardized manual assembly and internal wiring.
Debugging & Tuning
Voltage fine-tuning, ripple check, and protection calibration.
Full-Load Aging
Rigorous thermal burn-in under rated loads to eliminate infant mortality.
Aging Testing System
Monitored rack management for endurance and stability verification.
Endurance Validation
Continuous electrical load cycle monitoring.
Sub-Assembly Workflow
Organized modular sub-assembly and enclosure installation.
Final Inspection
100% mechanical, electrical, and packaging quality check.
Modern Workshop Environment
Explore Yueqing Keldan Technology Co., Ltd. manufacturing workshops, equipped to support high-volume OEM orders.
Assembly Workshop
Spacious, ESD-safe operational facility.
Integrated Workstations
Streamlined layout for low-latency line transitions.
Semi-Automated Line
High throughput combined with manual QC precision.
Clean Production Room
Climate and dust controlled manufacturing space.
Experienced Technicians
Skilled staff adhering to strict SOP standards.
Intermediate QA Staging
Traceable lot tracking for all batch components.
Tooling & Equipment
Modern testing and assembly machinery.
Packaging Area
Export-compliant, drop-tested protective packaging.
Logistics Warehouse
Organized inventory for fast order dispatch.
Manufacturing Facility
Yueqing Keldan Technology Co., Ltd. headquarters.
Casing Assembly
Sturdy metal case fitting and safety insulation verification.
Audited Facility
TÜV Rheinland onsite verified production facility.
Serving Over 50 Countries & Regions
Yueqing Keldan Technology Co., Ltd. is committed to creating an excellent global brand. By adhering to innovative thinking and solid engineering concepts, we continuously supply worldwide clients with high-standard switching power supplies, DIN rail units, and solar inverters.
Backed by sincere service and an outstanding market reputation, Keldan products are actively exported to Europe, North America, Southeast Asia, South America, Africa, and beyond.
Dedicated B2B Customer Support
We are available to answer your technical questions, assist with customized quotations, and guide your sample evaluation process.
- Technical datasheet & drawing provision within 24 hours
- Engineering support for custom voltages, currents & enclosures
- Complete batch test reports and CE compliance documents
- In-depth quality audits via online video or on-site visits
