Shaanxi Zelqo Power Co., Ltd.
Headquartered in Xi'an, Shaanxi, China, Shaanxi Zelqo Power Co., Ltd. is an authenticated custom manufacturer and global exporter specializing in magnetic design and power conversion products. With on-site operations independently assessed and verified by Intertek, we provide specialized engineering solutions tailored to industrial, medical, consumer, and automation electronics.
Our operational setup integrates comprehensive prototype R&D, semi-automated winding lines, custom potting, and complete multi-stage test benches. We engineer every transformer and power unit directly around your target application, PCB mechanical envelope, and safety compliance norms.
Core Product Lines Manufactured:
Toroidal Transformers · Low Frequency EI Laminated Transformers · High Frequency Ferrite Core Transformers · Switching Mode Power Supplies (SMPS) · Industrial & Wall-Mount Power Adapters · Precision Coil Inductors & Chokes
Engineered to Support Demanding Sourcing Projects
Audited manufacturing capabilities certified by independent third-party inspection
Customization & R&D
- Customized on DemandVerified
- Drawing-based CustomizationVerified
- Sample-based ProcessingVerified
- Full OEM / ODM SystemVerified
Production Line & Machinery
- Dedicated Production Lines1 Complete Line
- Production Machines on Floor28 Production Units
- CNC & Circular Toroid WindersVerified
- Crimping & Automatic Pipe CuttersVerified
Quality Control & Inspection
- On-Site Material Inspection RecordsVerified
- Semi-Finished In-Line TestingVerified
- Burn-in & Dynamic Aging TestVerified
- Hi-pot Dielectric VerificationVerified
Inside Our Production Floor & Testing Lab
Transparent photographic documentation of each critical station from coil insulation to hi-pot testing

Winding

Cutting

Core Insulation

Primary Winding

Wiring Process

In-Process Testing

Semi-Finished Testing

Burn-in Aging Test

Primary Packing

Export Carton Packing

CNC Winding Machine

Circular Toroid Winder

Multi-Spindle Winder

Tape Wrapping Machine

Precision Cutting Instrument

Insulation Pipe Cutter

Terminal Crimping Machine

Production Fixtures

Finished Goods QA

Digital Power Meter

AC Programmable Source

LCR Digital Bridge

DC Low Resistance Tester

Impulse Winding Tester

Hi-pot Dielectric Tester
Certifications & Quality Approvals
Strict conformity ensuring seamless customs clearance and safety conformance worldwide
CE & EMC ConformanceVerified
Ref: LTC2507015S01 / LTC2507015E01Compliant with core European Union safety, EMC emissions, and environmental standards for uninterrupted entry into all 31 EEA member markets.
Low Voltage Directive (LVD)Verified
Ref: BYS2203100156LKCertified electrical equipment safety ensuring dielectric strength, creepage distance, and temperature limit compliance according to EU directives.
FCC Verification (USA)Verified
Ref: DL-240909021ECEnforced electromagnetic interference limits verification guaranteeing commercial and residential compatibility for the North American market.
Initiate Your Custom Transformer or Power Project
Our experienced engineering team is on standby to analyze your schematics, prepare custom winding calculations, and deliver test samples backed by rigorous data reports.