Highly-productive, centerless cylindrical grinding of the pivots on up to four universal joints simultaneously in the plunge grinding process on a JUPITER 500. All eight pivots are ground in one work sequence. The machine is equipped with a handling system which delivers the universal joints from the bulk material in sets of four for the fully automatic grinding process. In a first step, the pivots are simultaneously ground in pairs and transported from the machine to a post-process measuring station by means of workpiece transport. The universal joints are then rotated by 90° to grind the following pivot pairs.

Due to the simultaneous grinding of several workpieces, this grinding concept provides high efficiency with extremely short cycle times and an enormous production output.