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Precision Magnetic Components for Modern Power Systems

Shenzhen Qinxinlong Electronics – Trusted manufacturer of high-frequency transformers, power supplies, and custom magnetic solutions since 2001. ISO9001, UL, CQC certified with global delivery.

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23+
Years of Manufacturing Experience
250+
Custom Designs Delivered
5200m²
Production Facility Area

About Qinxinlong

Established in 2001, Shenzhen Qinxinlong Electronics is a national high-tech enterprise specializing in the production of high-frequency transformers and other winding products. With over two decades of experience, we deliver reliable, high-performance magnetic components trusted by industrial and energy clients worldwide.

Our wholly-owned subsidiary, Hunan Yongzhou Qinxinlong Factory, covers an area of 5200m² and employs 150 skilled professionals. Our Huizhou facility adds another 2000m² of production and living space with 100 dedicated staff.

ISO9001 Certified UL Listed CQC Approved Invention Patents
Factory Interior

Our Product Range

From standard high-frequency transformers to fully customized magnetic solutions, Qinxinlong delivers precision-engineered components for power conversion, industrial automation, and new energy systems.

High Frequency Transformer

High Frequency Transformer

PQ35 Vertical Design, Ferrite Core, Customizable for Switching Power Supplies

  • • Frequency: High Frequency
  • • Insulation: High Dielectric Strength
  • • Application: Switching Power Supplies
Toroidal Transformer

Toroidal Step-Up/Down Transformer

Custom EE16 Inductor Coils, 220V to 12V/18V/24V, Copper Wire Wound

  • • Input: 220V AC
  • • Output: 12V/18V/24V DC
  • • Core Type: Toroidal
Mini Power Supply

Mini Horizontal Power Supply

EF16 Series, 220V to 12V, Industrial Grade High-Frequency Transformer

  • • Compact Horizontal Design
  • • 220V to 12V Conversion
  • • Industrial & Automation Use
Switch Transformer

EE55 Switch Transformer

High-Frequency Switching Transformer, Made in China, Ferrite Core

  • • Model: EE55
  • • Type: Switching Transformer
  • • Core Material: Ferrite
Pool Light Transformer

Electronic Pool Light Transformer

Ferrite Core, Step-Down, High-Frequency, Waterproof Design

  • • Step-Down Voltage
  • • High-Frequency Operation
  • • Waterproof & Durable
Current Transformer

Custom Current Transformer

125-150A, 12V, Ferrite Core, for Audio & Electronic Systems

  • • Current Rating: 125-150A
  • • Output: 12V
  • • Application: Audio Equipment
Isolation Transformer

Isolation Power Transformer

220V/110V to 12V/24V, 8A, PCB Welding, Audio & Control Systems

  • • Input: 220V/110V
  • • Output: 12V/24V, 8A
  • • Isolation for Safety
Planar Transformer

Planar & SMT Transformers

Surface Mount Technology, Low Profile, High Efficiency

  • • SMT & Planar Design
  • • Low Height Profile
  • • High Efficiency Conversion
Inductor Coils

Adjustable Inductor Coils

Custom EE16, Copper Wire, Toroidal Core, Variable Output

  • • Adjustable Voltage Output
  • • EE16 Standard Size
  • • Toroidal Core Design
3 Phase Transformer

3-Phase & Step-Up Transformers

250 kVA, 200V to 400V, Industrial Power Conversion

  • • 3-Phase Input/Output
  • • 250 kVA Capacity
  • • Step-Up Voltage Conversion
View Full Product Catalog

Why Choose Qinxinlong?

Engineered for reliability, efficiency, and long-term performance in demanding environments.

Certified Quality

ISO9001, UL, CQC, and DCI certified manufacturing processes ensure compliance and safety.

Custom Engineering

Tailored magnetic solutions designed to your exact voltage, current, and footprint requirements.

Industrial Durability

Robust construction with high insulation and thermal resistance for 24/7 operation.

Global Support

Export-ready products with technical support and fast shipping worldwide.

2001
Founded
5200
m² Factory Area
250+
Monthly Output (kW)
25+
Countries Served

Frequently Asked Questions

What types of transformers do you manufacture?

We specialize in high-frequency transformers, low-frequency transformers, planar transformers, current transformers, toroidal transformers, inductors, and custom magnetic components for power supplies and industrial applications.

Can you customize transformers to our specifications?

Yes, we offer full customization including input/output voltage, current rating, core type, winding configuration, insulation class, and mechanical dimensions. Our engineering team works closely with clients to deliver optimal solutions.

What certifications do your products have?

Our manufacturing processes are certified under ISO9001, UL, CQC, and DCI standards. Many of our products also carry individual safety certifications for international markets.

What is your production capacity?

With over 5200m² of production space and more than 250 employees across two facilities, we have a monthly production capacity of thousands of units, scalable for large-volume orders.

Do you support OEM/ODM services?

Yes, we provide comprehensive OEM and ODM services including private labeling, custom packaging, and co-engineering support for new product development.

Get in Touch

Reach out for quotes, technical support, or custom design consultations.

Contact Information

Contact: Brittany Lee

Phone: +86 13255168093

WhatsApp: 86 15021973938

Email: robinchan@qxldz.com

Also: marketing@qxldz.com

Company Details

Shenzhen Qinxinlong Electronics Co., Ltd

Established: 2001

National High-Tech Enterprise

Hunan & Huizhou Production Facilities

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