Our Team & Manufacturing Facilities
Expert electrical engineering, rigorous ISO-compliant testing procedures, and specialized global account management.
Backed by 18+ Years of Engineering Excellence
Established in the heart of China's electrical capital, Yueqing Keldan Technology Co., Ltd. has developed into a premier manufacturer of industrial DIN rail power supplies, enclosed switching power supplies, and pure sine wave inverters.
Our operation integrates independent R&D, precision automated SMT mounting, void-free reflow soldering, and strict 100% full-load burn-in testing. With 44 verified staff onsite and specialized electrical engineers, we ensure dependable power conversion solutions for automation projects worldwide.
R&D & Power Engineering
Dedicated engineers with 5+ years of hands-on SMPS experience providing schematic design, PCB layout optimization, and thermal simulation.
- Design-based customization
- Sample-based prototyping
- Active PFC & EMC design
Quality Assurance & Testing
Multi-stage quality gates ensuring defect-free manufacturing from component arrival to final packed finished products.
- Incoming material inspection (IQC)
- Automated optical inspection (AOI)
- 100% full-load burn-in aging test
Global Export Team
Experienced multilingual foreign trade specialists providing rapid technical support, logistical coordination, and clear documentation.
- 10+ years global export expertise
- Fast technical & pricing feedback
- OEM & private label management
Office and Exhibits
Our international trade team consists of driven technical specialists dedicated to delivering first-class power supply service and engineering support worldwide.
Precision Workshop & Quality Equipment
Take a tour of our verified manufacturing environment in Yueqing, Zhejiang. Every station operates under strict SOPs to ensure long-term product reliability.
SMT Mounter
Automated high-speed chip placement
Reflow Soldering
Multi-zone precision temperature profile
AOI System
Automated optical PCB defect detection
Cutting Pieces
Accurate component lead preparation
Welding Station
Skilled manual through-hole soldering
Assembly Line
Housing integration & wiring assembly
Debugging & Tuning
Voltage ripple & current calibration
Aging Testing System
Computerized burn-in rack testing
Aging Test Racks
100% full-load continuous burn-in
Thermal Stability
Elevated operating load screening
Process Stage 1
Component insertion & inspection
Process Stage 2
Electrical safety dielectric test
Verified Production Environment
Comprehensive manufacturing facilities verified onsite by TÜV Rheinland for global OEM/ODM supply chains.
Clean Assembly Workshop
Organized anti-static workstations
Production Hall
Lean multi-line assembly layouts
SMPS Line
Standardized DIN rail workflows
Sub-Assembly Area
Transformers & inductive modules
Skilled Operators
Strict standard operating procedures
Finished Units Inspection
Comprehensive parameter checks
Secure Packaging Line
Export drop-test standard boxing
Finished Goods Warehouse
Rapid dispatch for common voltages
Material Staging
Traceable lot numbering
Dispatch Management
Global sea and air freight shipments
Terminal Installation
High-torque terminal integrity
Quality Verification
Complete traceability documentation
Partner with Yueqing Keldan Technology Co., Ltd.
Get in touch with our engineering and sales specialists for custom power specifications, project pricing, and full product catalogs.
[email protected]