Kaido Winder Medium-Large Size Battery Winder


Medium-Large Size Battery Winder performs automatic winding of cathode, anode, and separator to produce medium and large-size Li-Ion batteries. Therefore, used for EV and HEV.

Consequently, the machine performs automatic seal tape application (End Tape) and unloading of the Jelly Roll during the winding operation. As a result, high accuracy.

Winder for Medium to Large Cell

Medium-Large Size Battery Winder Specifications

High Speed and High-Quality Winding

  • Winding accuracy: 1mm or less
  • The displacement between cathode and anode: 1mm or less


  • KAW-BT and KAW-BTQ Series Semi-Automatic winders are equipped with mandrels that can handle cylindrical, prismatic, and core-type cells.

Touch Panel

  • Ease of operation is achieved by data entry through a touch panel

About Kaido Co.

We, as an engineering company, have designed and produced manufacturing facilities, such as electronic components, medical devices, and office equipment.
Especially, we have moved into manufacturing of winders for MF capacitors, electric capacitors, primary battery and the rechargeable battery including the Li-ion battery, over this period of time, we support widely from design to production of prototype or mass production winders which needs high quality and high accuracy.
Presently, we have met many customers and have been provided a variety of demands or requests, we got a lot of opportunities to work on a great variety of products, and thanks to this chance, we were able to put the results on many experiences.
Therefore, this rich experience is what we consider to be our greatest asset. We will all continue our efforts in working together with our customers, meeting their expectations, and contributing to society.

Li-Ion Battery Winder for Standard Size Cell

Kaido R&D Winder