ABOUT US

Components, connections
and possibilities.

M&D — Elk Grove, California, United States.

COMPANY PROFILE

M&D.
Based in California.

M&D is based in Elk Grove, California, United States. Our website brings together transformers, filters, inductance coils and circuit boards, with product photographs and component information to help you discuss your requirements.

The product catalog covers 13 categories, including switching power transformers, high-voltage transformers, low-frequency transformers and reactors, filters, filter inductors, inductance coils and PCB boards.

Our United States contacts, Mr. Yu and Mr. Li, are available for product inquiries. Share your selected product reference, electrical requirements, dimensions and any available drawings to start a conversation.

Find us at 9900 Kapalua Ln, Elk Grove, CA 95624, or email [email protected].

Meet our United States contacts ↗
MANUFACTURING & PROCESS

Precision, at
every stage.

From shaping a winding to preparing its connections and checking the assembly, each operation has a purpose. Explore six equipment types used in component production.

Close-up of copper windings and magnetic core components
01 / THE COMPONENTIt starts with
the winding.
Electrical measurement and inspection equipment
02 / THE CHECKAttention to
the details.
EXPLORE THE EQUIPMENT

See what each operation does.

Select a process below

01 / COIL WINDINGPROCESS ILLUSTRATION
AUTOMATIC WINDING MACHINES

Shape begins with the winding.

Winding equipment places wire around a bobbin or core to form the coil. Wire routing, turn placement and the winding arrangement are central to the component’s construction.

PROCESS FOCUS
  • Wire placement
  • Coil geometry
  • Winding arrangement
02 / TERMINAL TINNINGPROCESS ILLUSTRATION
AUTOMATIC TIN-DIPPING MACHINES

Prepare the connection points.

Tin-dipping equipment applies solder to designated terminals or exposed wire ends. This prepares the connection surfaces for the next assembly operation.

PROCESS FOCUS
  • Terminal preparation
  • Solder coverage
  • Connection surfaces
03 / INSPECTIONPROCESS ILLUSTRATION
AUTOMATED INSPECTION LINES

Check the details along the way.

Inspection equipment supports checks during production. The inspection plan is selected for the component and its requirements, including the relevant electrical, dimensional or visual checks.

PROCESS FOCUS
  • Electrical checks
  • Dimensional review
  • Visual inspection
04 / MATERIAL DISPENSINGPROCESS ILLUSTRATION
AUTOMATIC DISPENSING MACHINES

Put material where it is needed.

Dispensing equipment delivers process material to selected areas of an assembly. The material, application points and amount depend on the product design and manufacturing requirements.

PROCESS FOCUS
  • Application points
  • Material quantity
  • Assembly requirements
05 / VARNISH IMPREGNATIONPROCESS ILLUSTRATION
AUTOMATIC VARNISH IMPREGNATION

Support the winding structure.

Varnish impregnation introduces insulating varnish into the winding assembly. The process supports insulation and winding stability; the varnish system and process conditions are chosen for the component.

PROCESS FOCUS
  • Insulating varnish
  • Winding support
  • Process conditions
06 / INFRARED DRYINGPROCESS ILLUSTRATION
INFRARED DRYING EQUIPMENT

Complete the finishing process.

Infrared equipment supplies heat for drying in production. The heating profile and duration depend on the material system and the component’s process requirements.

PROCESS FOCUS
  • Controlled heating
  • Drying profile
  • Material compatibility
APPLICATION AREAS

Components across industries.

Explore applications ↗

Application photographs illustrate the sectors described in the company profile. Requirements and suitability are reviewed for each project.

WHY CHOOSE US

Customization. Quality. Support.

Customization support

Customization support

Provide input and output voltages, overall dimensions or a transformer reference photograph to begin a custom design discussion. Discuss the design and customization requirements with our United States contacts.

Strict quality control

Strict quality control

Discuss the inspection and testing requirements for your component, including dimensional checks, electrical checks and any required documentation.

After-sales support

After-sales support

Contact our United States team to discuss product requirements, customization questions, delivery arrangements and follow-up support.

Contact information ↗