In the past decades, EN motors has made the transition from manufacturing to custom building. Our customers increasingly look for innovative solutions to complex challenges rather than a standard engine. In AT-Aandrijftechniek magazine, our Technical Director Maarten van Berkum shares some insights into this changing world and discusses some of the special projects that EN motors has already produced.
Maarten also explains how EN motors excels at producing submersible motors. Customers nowadays don't want to know whether EN motors can make motors, but how far we can push the boundaries, e.g., in terms of engine output, rpm, belt tension and dredging depth. Every customer has their own ideas and requirements. In some cases, this means weighing different options and making complex decisions. When building a submersible motor, when should you choose a high-revving engine rather than a low-revving one, what pump power should it produce and at what angle must it operate?
In the interview, you can also find out more about our special project for the Allseas Group, for which we produced a set of twelve medium-sized submersible engines for their construction vessel Pioneering Spirit. With these motors, Pioneering Spirit lifts the topsides and jackets of offshore oil platforms out of the sea. One of the requirements was that the motors had to be able to withstand up to 1.5 times the maximum pressure. The motors at the very heart of the structure are submerged 60 m below water level. That is why we produced and tested motors that can withstand water pressure of 9 bar.
Our electric motors are used for plenty of other, highly-specialised applications, including in DyeCoo's machines. This Weesp-based company produces machines for dyeing polyester textile without using water and process chemicals. This is achieved using supercritical CO2. Traditional textile dyeing is often done in emerging countries, uses a huge amount of clean water, and produces a lot of waste water.