SMT Section SMT Mounter Station
High-speed surface-mount placement machines ensure accurate capacitor, IC, and resistor positioning onto clean PCB layouts.
Enterprise Overview
Precision Engineering Backed by Rigorous QA Controls
Yueqing Keldan Technology Co., Ltd. operates standard production facilities located in China's renowned electrical manufacturing hub of Yueqing, Zhejiang. With verified in-house capacity spanning component cutting, high-speed SMT surface mounting, reflow soldering, through-hole assembly, multi-stage debugging, and dedicated burn-in aging racks, we fulfill stringent global supply demands with guaranteed reliability.
Every batch of DIN rail power supplies, switching power adapters, and pure sine wave inverters undergo full electrical and physical inspections, ensuring reliable operation across demanding industrial automation and commercial installations worldwide.
TÜV Rheinland Verified Facility 100% Full-Load Burn-In Test High-Precision SMT & AOI
18+ Years Manufacturing
100% Burn-in Tested
44+ Skilled Personnel
CE Compliant Lines
Manufacturing Stages
End-to-End Production & Assembly Lines
Direct view into our core production stations. Each stage operates under continuous quality assurance checkpoints to eliminate assembly flaws before packaging.
SMT Section 
Soldering Reflow Soldering Equipment
Precision multi-zone thermal profiling guarantees high mechanical bond strength and void-free solder joint conductivity.
Inspection AOI Optical Verification
High-resolution Automated Optical Inspection machines screen for micro-bridging, misaligned components, and solder anomalies.
Pre-Assembly Component Cutting & Prep
Accurate mechanical trimming and lead formation ensure pin alignment and safe creepage clearance on power boards.
Fabrication Welding & Manual Soldering
Experienced technicians handle heavy transformers, chokes, and large electrolytic capacitors using temperature-stabilized irons.
Assembly Assembly Lines
Installation of thermal heatsinks, chassis, terminal blocks, and custom enclosures with calibrated torque screwdriving.
Calibration Debugging & Calibration
Bench-level electrical debugging confirms precise voltage trims, low ripple noise levels, and instant over-current tripping response.
Burn-in Aging Testing System
Every completed power unit undergoes 100% full-load thermal burn-in stress testing to screen out premature component degradation.
Facility Showcase
Inside Yueqing Keldan Technology Co., Ltd. Workshops
Authentic photos displaying our production environment, warehouse areas, quality testing rooms, and technical assembly stations.
Assembly Workshop
Manufacturing Floor
Component Assembly
Production Lines
Skilled Technicians
Quality Verification
Production Equipment
Integrated Workstations
Packaging & Logistics
Facility Overview
Aging Test Bays
Thermal Aging Systems
Process Phase 1
Process Phase 2
Manual Final Assembly
