Guangzhou · China

Custom Transformer & Magnetic Components Manufacturer

Guangzhou KATOY Electronics Co., Ltd. develops and manufactures custom transformers, inductors, chokes, reactors and related magnetic components for industrial electronics, power conversion and OEM equipment.

Guangzhou KATOY Electronics manufacturing facility
2004Founded
5,000+ m²Manufacturing Facility
~300Employees
ExperiencedEngineering & R&D Team
About KATOY

Engineering-Driven Custom Transformer Manufacturing

Founded in 2004, Guangzhou KATOY Electronics Co., Ltd. is a custom transformer and magnetic components manufacturer serving industrial electronics and OEM equipment projects. Our engineering team can review electrical specifications, drawings, samples and application requirements to develop magnetic components around the customer’s actual equipment and operating conditions.

For power modules and power-electronic equipment, KATOY supports magnetic design, core and winding structure, insulation, thermal considerations and mechanical integration from prototype development through recurring production.

China manufacturing capabilities →

Custom transformer assembly at KATOY Electronics

Magnetic & Winding Design

Core, turns, conductor and winding structures.

Insulation & Thermal Design

Insulation structure and thermal considerations.

Mechanical Integration

Dimensions, terminals, leads and mounting.

Prototype to Production

Sample development through recurring manufacturing.

Manufacturing

Engineering Backed by In-House Magnetic Components Manufacturing

KATOY combines transformer and magnetic-component engineering support with in-house material preparation, winding, assembly, insulation processing, electrical testing and production inspection.

  • Material preparation
  • Winding and assembly
  • Insulation processing
  • Electrical testing
  • Production inspection
Transformer winding workshop at KATOY Electronics
Toroidal transformer winding production line at KATOY Electronics
High-frequency transformer testing at KATOY Electronics
Transformer electrical testing at KATOY Electronics
Quality & Testing

Verification Based on Product Requirements

KATOY operates an ISO 9001:2015 quality management system. Inspection and testing are carried out according to approved product specifications and project requirements.

  • Incoming material inspection
  • In-process inspection
  • Electrical parameter verification
  • Insulation-related testing as specified
  • Visual and dimensional inspection
Quality & Compliance

Compliance Support Based on Project Requirements

Material, certification and conformity requirements are evaluated according to product design, customer specifications and the target market.

ISO 9001:2015

Quality management system applied to manufacturing, inspection and production control.

RoHS & REACH

Compliant materials can be selected according to applicable customer and market requirements.

UL-Recognized Materials

UL-recognized insulation and related materials are available according to project requirements.

CE & CQC

CE conformity support can be provided for applicable projects; CQC certification is available for selected products.

Compliance and certification requirements are confirmed according to product design, customer requirements and target market.
Main Product Families

Custom Transformers, Inductors & Magnetic Components

These product families represent major areas of KATOY’s custom transformer and magnetic components manufacturing capability. Our engineering and manufacturing capability is not limited to these categories.

Working on a Magnetic-Component Design Challenge?

Send your specifications, drawings, dimensions or reference samples. Our engineering team can review the magnetic-component requirements for your application.

Send Project Requirements