SMT Line
SMT Mounter
High-speed pick-and-place automated mounters ensuring micron-level component placement accuracy across dual and multi-layer SMPS circuit boards.
Manufacturing Facilities & Production Workshop
State-of-the-art power supply assembly, SMT automated manufacturing, and 100% full-load aging test infrastructure in Yueqing, China.
Production Excellence
Engineered for Industrial Reliability & High Precision
At Yueqing Keldan Technology Co., Ltd., our manufacturing setup integrates surface mount technology, automated optical inspection, and rigorous burn-in procedures to ensure compliance with global industrial electrical standards.
As a verified custom manufacturer in the core electrical industrial cluster of Yueqing, Zhejiang, Yueqing Keldan Technology Co., Ltd. maintains high-efficiency assembly workshops designed for switching power supplies, DIN rail modules, and power conversion devices. Every phase of our workflow—from incoming component lead preparation to multi-tier burn-in screening—is calibrated to minimize tolerance drift, protect sensitive electronics, and guarantee high-reliability execution for international OEM/ODM projects.
Workstations & Equipment
Core Production Line Stations
A systematic walkthrough of our workshop machinery and manual assembly workcells.
Thermal Bonding
Reflow Soldering Equipment
Multi-zone temperature profile reflow soldering ovens providing controlled heating gradients to produce reliable, void-free PCB solder joints.
Optical QA
AOI Inspection
Automated optical inspection systems immediately scanning post-solder joints for micro-bridging, misaligned components, polarity discrepancies, and dry joints.
Pre-Assembly
Cutting Pieces
Precision lead-cutting and component-forming stations standardizing through-hole pins prior to insertion into power supply chassis boards.
Manual Precision
Welding
Skilled operators performing manual soldering and high-current terminal bonding for heavy-duty transformers, heatsinks, and inductive coils.
Line Assembly
Assemble
Modular assembly stations integrating tested PCBs into industrial DIN rail housings, aluminum enclosures, and terminal block structures.
Calibration
Debugging
Technical calibration and live bench testing verifying voltage regulation, ripple limits, over-current cutoff, and short-circuit protections.
Burn-In Validation
Aging Testing System
Centralized burn-in racks running 100% full-load operational cycles to screen early infant component failure and verify continuous thermal stability.
Batch Testing
Aging Test
Monitored batch burn-in chambers validating thermal resistance and power delivery over prolonged high-load cycles before packaging clearance.
Enclosure Integration
Final Assemble
Structural fastening, terminal guard installation, and private label application for finished switching units and industrial inverters.
Process Flow
Process 1
Systematic routing of internal subassemblies and initial continuity checks under standardized quality station procedures.
Process Flow
Process 2
Secondary potting, insulation barriers positioning, and structural chassis mounting for industrial control power supplies.
Workshop Overview
Inside Yueqing Keldan Technology Co., Ltd. Workshop Floor
Comprehensive views of our material staging areas, production benches, and operational facility.
Request Factory Audit Documentation or Custom Quotes
Partner directly with Yueqing Keldan Technology Co., Ltd. for reliable power supply OEM/ODM manufacturing. Inquire today for technical datasheets, production lead times, and factory audit files.