(Schaumburg, IL) — In order to expand the usefulness of HEIDENHAIN’s sturdy modular magnetic encoders, the new ERM 2400 series is introduced. This series features more compact dimensions than the current ERM 200, already commonly used on C axes in lathes, and can be used at higher rotational speeds. This makes it useful in more applications such as in spindles for milling machines.
The ERM 2400 series of encoders consists of the scanning head and scale drum assemblies. The scale drums are designed so that they require only a small installation space. They are available in two versions: the ERM 2404 scale drum features a continuous centering collar on its inner circumference and is fastened with a frictional connection. This drum has the advantage of being able to endure very high rotational speeds. In addition to the centering collar, the ERM 2405 scale drum has feather-key slots on its inner circumference, which prevent unintentional rotation of the scale drum. Since the scale drums do not have mounting holes, it is possible to realize relatively large inside diameters.
Also, completely new scanning heads with small dimensions for the ERM 2400 have been designed. In addition to the small size, the new ERM 2480 scanning heads also offer the possibility to choose between a radial or axial cable outlet. The scanning heads have a 1-VPP interface.
All of these features result in a compact encoder series that offers higher accuracy than gear wheel encoders (and as a consequence, better performance in oriented spindle stops and speed stability, resulting in a better surface finish), and high permissible shaft speeds.
: Design World :
Filed Under: Machine tools + subtractive manufacturing, Encoders (rotary) + resolvers