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Partner directly with Shaanxi Zelqo Power Co., Ltd. for sample validation, OEM design calculations, or full product line catalogs.
100%
On-Time Dispatch
1% higher than industry average
≤ 2 Hours
Fast Response
Dedicated bilingual engineering team
20.0%
Reorder Rate
7% higher than benchmark
4.8 / 5.0
Customer Review Score
Based on verified overseas transactions
Supplier Assessment Radar
Verified Supplier by IntertekShaanxi Zelqo Power Co., Ltd. operates with verified on-site custom manufacturing lines in Xi'an, Shaanxi, China. We combine tailored electrical engineering, strict raw material evaluation, and systematic in-line testing to meet international market benchmarks.
28+
Precision Production Units
5+ Yrs
Direct Export Experience
100%
Finished Unit Testing
Customization Capabilities
OEM & ODM Engineering- Customized on DemandVerified
- Sample-based & Drawing-basedVerified
- Minor Custom (Logo, Packaging)Verified
Quality Assurance
Full Traceability- Material Inspection RecordsVerified
- Supplier Assessment ProceduresVerified
- Finished Product InspectionVerified
Production Machinery
Automated & Semi-Auto- Dedicated Production Lines1 Certified Line
- Production Equipment Units28 Units
- CNC & Circular Toroidal WindersEquipped
Global Export Trade
Worldwide Logistics- Accepted Payment TermsT/T, L/C, Trade Assurance
- Nearest Shipping HubQingdao Port
- Fast Dispatch Rate100.0%
Manufacturing Flow
End-to-End Manufacturing Process
From raw core insulation to precision winding, aging, and export packaging
Core Insulation 01
Primary Winding 02
Secondary Winding 03
Lead Cutting 04
Wiring & Termination 05
In-Process Test 06
Semi-Finished Test 07
Full-Load Aging 08
Primary Packaging 09
Export Palletizing 10
Advanced Facility & QC Tools
Production Machinery & Testing Instruments
State-of-the-art CNC winding machines, dielectric testers, and precision LCR bridges
CNC Winding Machine
Programmable tension control and multi-axis spindle winding for high-precision high-frequency and flyback transformers.
Circular Toroidal Winding Machine
Specialized gear-head winding machine providing tight wire layering and uniform distribution across toroidal rings.
Insulation Wrapping Machine
Automated outer-layer and interlayer Mylar tape insulation application for optimal dielectric strength.
Multi-Strand Winding Unit
Heavy-gauge and multi-strand copper winding equipment designed for low-frequency power and isolation transformers.
Precision Cutting Instrument
Accurate length-controlled wire and lead stripping, ensuring clean solder connections without wire nicking.
Pipe Cutter
High-efficiency tube and sleeve cutter delivering exact insulation protection for high-voltage terminals.
Pneumatic Crimping Machine
Calibrated crimping station ensuring gas-tight terminal bonds and low contact resistance across all lead connectors.
Custom Assembly Fixtures
Precision-tooled fixtures ensuring repeatable bobbin, core gap, and enclosure dimensions across mass batches.
Finished Goods Inspection Station
Final QA workstation for dimensional tolerances, lead lengths, labeling veracity, and cosmetic integrity checks.
Precision Digital Power Meter
Measures active power, standby consumption, power factor (PF), and conversion efficiency under varying load conditions.
Variable AC Power Source
Simulates global mains conditions (85V–265V, 50Hz/60Hz/400Hz) to confirm international grid compatibility.
LCR Digital Bridge Tester
High-precision measurement of primary/secondary inductance, leakage inductance (Lk), and winding capacitance.
DC Low Resistance Tester
Four-wire Kelvin method testing of DCR on copper windings, verifying turn counts and copper conductor uniformity.
Impulse Winding Tester
High-voltage pulse waveform comparison to detect microscopic inter-turn shorts, corona discharge, and insulation flaws.
Dielectric Hi-Pot Tester
Applies high AC/DC voltage (up to 4kV) between primary, secondary, and core to guarantee safe electrical isolation.
Quality & Safety Compliance
Verified International Certifications
Tested and compliant with European and North American electrical standards
CE Certification
Cert ID: LTC2507015S01
Verifies compliance with essential EU safety, electromagnetic compatibility, and health requirements for Power Adapters and SMPS converters.
Validity: 2023-07-23 – 2030-07-23
FCC Certification
Cert ID: DL-240909021EC
Confirms electronic power supply models comply with strict Federal Communications Commission EMI and radio disturbance limitations.
Status: Compliant & Active
LVD Safety Directive
Cert ID: BYS2203100156LK
Assures that low-frequency transformers operate safely without shock or fire hazard within the designated low-voltage operating scope.
Validity: 2022-03-16 – 2027-03-16
Export Presence
Supplying OEM Buyers Worldwide
Balanced international market footprint backed by standardized export logistics
16% Eastern Europe
15% North America
15% Middle East
13% Western Europe
12% South America