• About Hengxin About Hengxin

    About Hengxin

    Perseverance and credibility; excellence through continuous innovation.

Company Profile

Electronic Transformer and Reactor Manufacturer

Weifang Hengxin Electric Co., Ltd. is located in Qingzhou, Shandong Province. Founded in 1997, the company manufactures electronic transformers, dry-type transformers, high-power EMC filters, reactors, and CATV power supplies.

Our transformer range includes EI, C-core, O-core, and R-core designs across high, medium, and low frequencies, with annual capacity of 5 million units. Products serve electronics, new-energy storage, household appliances, communications, and industrial automation.

Modern automated production equipment, advanced testing instruments, and an experienced technical team support rigorous quality control. The company holds RoHS, CQC, ISO 9001, ISO 45001, and ISO 14001 certifications.

Our History

  • 1997

    The company was founded as Qingzhou Top Electric Co., Ltd. and began manufacturing electronic transformers and electrical components.

  • 2000+

    Expanded into EI, C-core, O-core, and R-core electronic transformers across high, medium, and low frequencies.

  • 2010+

    Products became widely used in electronics, appliances, communications, and industrial automation.

  • 2020+

    Continued strengthening RoHS, CQC, ISO 9001, ISO 45001, and ISO 14001 quality and management systems.

  • Today

    We continue to provide stable, reliable, and customizable electrical products with perseverance and integrity.

Six Core Capabilities

  • Custom engineering and development

    Custom Engineering

    We customize electronic transformers, reactors, and filters to match enclosure space, load conditions, output voltage, insulation class, and certification requirements.

  • Reliable manufacturing

    Reliable Manufacturing

    Modern automated production and assembly equipment covers winding, soldering, assembly, impregnation, and testing to ensure batch-to-batch consistency.

  • Quality testing

    Quality Testing

    Integrated transformer testers, LCR meters, and high-voltage withstand testers support comprehensive checks of dielectric strength, insulation, turns ratio, and electrical performance.

  • Volume production and delivery

    Volume Supply

    With annual capacity of 5 million electronic transformers, we support volume requirements across appliances, communications, industrial control, new energy, and power-grid applications.

  • Management system certifications

    Certified Systems

    RoHS, CQC, ISO 9001, ISO 45001, and ISO 14001 certifications help meet customer audits, factory inspections, and export compliance requirements.

  • After-sales support

    After-sales Support

    We provide product selection, installation, commissioning, troubleshooting, and quality-related return support with responsive service for production needs.

Honors & Certifications

Certifications and honors reflecting our commitment to quality and integrity.

  • Shandong Specialized and Innovative SME
  • Shandong Innovative SME
  • Weifang Integrity Private Enterprise
  • Qingzhou Credit Association Member
  • China Quality and Service Reputation AAAA Enterprise
  • Advanced Party Organization
  • Community Care Enterprise
  • Outstanding Flood-relief Contributor
  • Excellent Government Procurement Supplier
  • Patent Honors

Corporate Culture

  • Mission

    Serve the electrical industry
    with stable, reliable products

  • Vision

    Become a trusted
    electronic transformer manufacturer

  • Values

    Customer First | Integrity and Mutual Success
    Gratitude and Dedication | Innovation