Our skill sets, your solution
We create tailor-made drive solutions at the very highest level with comprehensive expertise.
We have fully mastered each of our motor technologies. Consequently, we provide you with expert and targeted advice at all times. If you are not sure what drive is right for your application – we can tell you. Thanks to our many years of experience in all kinds of application areas and sectors, we know all the challenges that need to be mastered. We apply our knowledge for every special solution. For example, we have been doing this in the area of explosion protection for over three decades. And we have a wealth of experience in all kinds of applications – from wind power, shredder and recycling plants, extrusion, car and truck dynamometers to traction and lifting motors in all kinds of vehicles and factory truck technology. It is best to avoid trial and error: let the qualified experts from EW HOF get to work.
Outstanding engineering expertise
Mechanical design and simulation
We use the latest design and analytical software for the mechanical construction and simulation. We use a CAD system to create 2D and 3D designs (file support) and also carry out bearing calculations, strength simulations and oscillation analyses. Individual adjustment to the customer interface, for example by shaft geometries or flange models, is also a fixed part of our tried-and-tested process.
Attachment and integration
We take care of the professional attachment of components, such as transmission and encoders. If you desire the integration of particular functions for your product, we will implement these for you – from brakes and hollow shafts to sensor bearing. Our skill sets also include the integration of process forces.
Electrical calculation and simulation
We work with special analytical calculation programs for direct current and asynchronous machines as well as with numerical field calculation programmes (FEM) for asynchronous and synchronous machines. The computer-aided heating simulation using network generation supplements our range of services. If you need support with the drive design and dimensioning, we will take care of this for you.
Checking and testing
We have over six test facilities for load tests up to 55,000 Nm. In addition, we use a water recooling system for motors and converters and can conduct test with up to 690 V supply voltage. Apart from a complete test with the customer’s converter systems, we also carry out oscillation and noise measurements. Do you want a complete acceptance test with independent experts, e.g. PTB, TÜV, GL, UL, CSA? We would be pleased to initiate such an acceptance test.
Expert manufacturing and assembly
We offer conventional mechanical production as well as CNC processing for drilling, turning, milling and grinding. In addition to the steel and aluminium welding, we also braze copper squirrel cage winding and the produce stator and rotor packs.
At EW HOF we produce coils in round or flat wire design and use high quality insulation materials and vacuum impregnation. Depending on requirements, we can use manual or automatic coiling or bandaging in production.
If all other process steps have been carried out, the product moves on to cell or assembly line production. Here we can offer individual part handling of up to 8 tons as well as the complete assembly of attachment components.
We have two modern painting cabins in which we can implement our customers’ painting instructions in one or multi-coat structure. Do you need moisture, acid or tropical protection for your drive solution? Then you’ve definitely come to the right place with EW HOF. What else do we offer you? Certified offshore paintwork (C5 M-H) – “Perfection that is more than skin deep!”
TÜV SÜD Management Service GmbH Certificate
Quality management certification to DIN EN ISO 9001
TÜV NORD CERT GmbH Certificate
Acknowledgement of the quality management systems according to Directive 2014/34/EU for equipment and protective systems intended for use in potentially explosive atmospheres (TÜV 03 ATEX 2133 Q)
Our motor technologies
water- or air-cooled high torque motors
surface-mounted or buried, high-energy and temperature-table NeFeB magnets
with housing or without housing, aluminium or copper rotors (rod design)
shunt, compound or series connection designs
AC or DC technology in the standard supply voltages
Custom solutions in all motor technologies
water- or air-cooled asynchronous or synchronous generators