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HC series
Rotary electromagnetic chucks are used on surface grinders, lathes, cylindrical grinders, and other machines. Standard rotary chucks are available
with the popular concentric ring top plate pattern.
Magna-Lock has designed many rotary chucks for lathe and boring applications, radial pole chucks for cylindrical grinders, and sectional chucks for automatic loading and unloading of workpieces We are prepared to design and build rotary chucks of any size and style. Our experience in rotary magnetic chucks includes successful installations up to 12 feet in diameter.
Collector rings and brush holder assemblies are included with all chucks. Collector rings on 30" and larger sizes are located in the center of the chuck allowing easy access Collector ring and brush holder assemblies for special and smaller chucks may be arranged to meet customer's machine specifications.
- Type I is a rotary electromagnetic chuck with a 7 ½” diameter bronze center cover
plate to provide access to the collector ring and brush holder assembly. This is the most
standard model and most popular of rotary chucks that are manufactured by Magna
Lock USA.
- Type II is a rotary electromagnetic chuck with a removable center cover designed to
carry the magnetic holding derived from the chuck’s innermost coil to provide holding
action down to a 2 ¼” diameter. The height of this chuck is greater than a Type I chuck
and there is an entirely different construction used around the innermost chuck body
ring. Because of this, it is not possible to convert a Type I rotary chuck to a Type II rotary
chuck.
- Type III is a rotary electromagnetic concentric ring chuck designed especially for
certain vertical spindle rotary table surface grinders. The collector ring for this type of
chuck is a separate assembly that is mounted down on the machine spindle completely
external to the chuck. Accessibility to the collector ring and brush holder is through a
removable cover in the machine itself, so this type of chuck does not have the typical
removable center cover and provides magnetic holding down to about 3” diameter in
the center.