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Advanced Magnetic Powder Cores
Powering the Future of Energy

Zhejiang NBTM KeDa Magnetoelectricity Co., Ltd. (KDM) is a world-leading manufacturer of soft magnetic powder cores, serving industries from photovoltaics and electric vehicles to 5G communications and high-efficiency power supplies.

Explore Our Products

24+ Years

Industry Experience Since 2000

Global Reach

Exported to Asia, Europe & Americas

Certified Quality

ISO9001, ISO14001, IATF16949

About KDM

Zhejiang NBTM KeDa Magnetoelectricity Co., Ltd. (KDM), founded in 2000, is a wholly owned subsidiary of NBTM Group, part of NBTM New Material Group Co., Ltd. (Stock Code: 600114), a listed company on the Shanghai Stock Exchange.

As one of the world’s leading manufacturers, KDM provides a full range of magnetic powder cores—from standard iron powder cores to high-performance iron-nickel alloy powder cores. Our advanced automated production lines and dedicated R&D center ensure consistent quality and innovation.

KDM has achieved ISO9001:2015, ISO14001:2015, and IATF16949:2016 certifications, reflecting our commitment to excellence in quality, environmental responsibility, and automotive-grade manufacturing standards.

KDM Manufacturing Facility

Our Product Series

KDM is one of the largest global suppliers of soft magnetic powder cores, offering high-performance solutions for diverse industrial applications.

Toroidal Alloy Powder Cores

High-permeability, low-core loss toroidal cores ideal for inductors and transformers in power electronics.

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Alloy Special Shapes

Custom-shaped magnetic cores for specialized applications requiring unique geometries and performance.

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Iron Powder Cores

Cost-effective, high-saturation cores for energy storage in switching power supplies and renewable energy systems.

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Featured Products

Explore our comprehensive range of magnetic powder cores engineered for efficiency, durability, and performance.

KDM-APC-50 Toroidal Core

KDM-APC-50

High-Permeability Alloy Powder Core, μi = 50, Low Core Loss

  • • Material: Fe-Si-Al
  • • Size: OD 50mm, ID 30mm, H 20mm
  • • Application: High-frequency inductors
KDM-IPC-75 Iron Powder Core

KDM-IPC-75

Iron Powder Core with Distributed Air Gap, High Saturation

  • • Material: Pure Iron
  • • Size: OD 75mm, ID 45mm, H 25mm
  • • Application: PFC chokes, SMPS
KDM-ASC-Rect Rectangular Core

KDM-ASC-Rect

Rectangular Alloy Special Shape Core for Compact Designs

  • • Material: Fe-Ni-Mo
  • • Dimensions: 60×40×15mm
  • • Application: EV charging modules
KDM-APC-75 High Flux Core

KDM-APC-75

High-Flux Alloy Core, μi = 75, Excellent DC Bias Performance

  • • Material: Fe-Ni
  • • Size: OD 75mm, ID 50mm, H 30mm
  • • Application: Solar inverters
KDM-IPC-100 Large Iron Core

KDM-IPC-100

Large Diameter Iron Powder Core for High Power Applications

  • • Material: Iron-based composite
  • • Size: OD 100mm, ID 60mm, H 35mm
  • • Application: Industrial UPS systems
KDM-ASC-E E-Shaped Core

KDM-ASC-E

E-Shaped Alloy Core for Modular Power Conversion

  • • Material: Fe-Si
  • • Core Type: E-I configuration
  • • Application: 5G base station power
KDM-APC-125 Ultra High Permeability

KDM-APC-125

Ultra-High Permeability Core, μi = 125, Low EMI

  • • Material: Fe-Ni
  • • Size: OD 60mm, ID 35mm, H 25mm
  • • Application: Medical power supplies
KDM-IPC-60 Mini Iron Core

KDM-IPC-60

Miniature Iron Powder Core for Compact Power Modules

  • • Material: Iron-phosphate composite
  • • Size: OD 60mm, ID 38mm, H 18mm
  • • Application: Home appliance drivers
KDM-ASC-U U-Shaped Core

KDM-ASC-U

U-Shaped Special Core for High-Current Inductors

  • • Material: Fe-Si-Al
  • • Configuration: U-I assembly
  • • Application: EV motor drives

Key Applications

KDM magnetic powder cores are trusted in high-reliability applications across multiple high-growth industries.

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Photovoltaic

Inverters, MPPT controllers, solar charge systems

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Automotive

EV chargers, onboard power, battery management

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Power Supply

SMPS, UPS, PFC chokes, server power

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Home Appliances

Induction cookers, AC inverters, smart devices

2000

Founded

600114

Stock Code

3

ISO Certifications

30+

Countries Served

Frequently Asked Questions

What are magnetic powder cores used for?

Magnetic powder cores are used in inductors and transformers for power conversion systems, including solar inverters, EV chargers, switch-mode power supplies, and industrial electronics due to their high saturation, low core loss, and excellent thermal stability.

What materials do KDM cores use?

KDM manufactures cores using iron powder, Fe-Si-Al (Sendust), Fe-Ni (High Flux), and Fe-Ni-Mo (Molypermalloy) alloys, each optimized for specific performance characteristics like permeability, saturation, and frequency response.

Are KDM products certified for automotive use?

Yes, KDM has achieved IATF16949:2016 certification, ensuring our manufacturing processes meet the stringent quality and reliability requirements of the automotive industry, especially for new energy vehicles and charging infrastructure.

Can KDM provide custom core shapes?

Yes, our Alloy Special Shapes product line includes custom geometries such as E, U, rectangular, and block cores. We work closely with clients to develop tailored magnetic solutions for unique design challenges.

Get in Touch

For product inquiries, technical support, or partnership opportunities, visit our official website to contact KDM directly.

Phone

+86-572-8088064

Email

kda@kdm-mag.com

Location

Huzhou City, Zhejiang Province, China

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