The demand for higher power density in electric motors has made slot fill and design for manufacturability a critical consideration for motor designers. Today’s motor designers are challenged with high slot fill designs, which in turn affects the manufacturability of their stator. There are several different methods for calculating slot fill that Alderks will address during his presentation. “The most commonly made mistake is when copper fill is used for to determine manufacturability instead of the actual fill, which takes into account other factors such as insulation, spacers, liners and wedges.” said Alderks.

In addition to calculating a more accurate slot fill calculating slot fill, implementing some small design changes can dramatically affect the ability to achieve the desired fill. These changes and ideas will also be covered in the presentation followed by a question and answer session.

“Windings is involved in innovative work in regards to high slot fill and I am very excited to be able to present our capabilities to help others design for improved manufacturability.” said Alderks about his upcoming speaking opportunity.

“Helping our customers achieve their technical goals is one of the key objectives during the development and design of a custom motor.  Providing thought leadership and practical information on topics such as slot fill to guide the decision making process early on is relevant to managing risk, cost and overall timeline.  Slot fill is a basic, fundamental topic and a key to understanding this will be rewarded with long term benefits” says David Schauer.  

In this webinar you will learn

  • What is Slot Fill Factor?
  • How to Calculate Total Slot Fill
  • Slot Fill and Manufacturability
  • Design for Manufacturing Solutions


Title: Motor Slot Fill and Design for Manufacturability

Duration: 00:53:19


Blaine Alderks

Sales Project Engineering Manager

With extensive manufacturing experience in stator, rotor and motor assembly, Alderks is knowledgeable in design for manufacturability, motor topography and project management. In his role at Windings, Alderks has helped some of the world’s most innovative companies develop new motor designs and meet their cost, quality and delivery expectations.


David Schauer

Business Development Executive

David Schauer has managed and lead the Windings technical organization over his career spanning more than 20 years in custom electric motors and is recognized as a visionary technical leader at Windings. He is known for driving engineering and business strategy for the development, enhancement and optimization of custom designed and manufactured motor products used by our innovative global OEM clients in aerospace, industrial, high speed and specialized motor industries.