The optimization of a spindle unit, i. e. the modernization (retrofitting) is carried out by Weiss Spindeltechnologie GmbH, Maroldsweisach. WEISS also adapts and repairs motor spindles and separately driven spindles of other makes. Weiss is a technology leaders in the area of main spindles as tool machine spindles. Weiss builds smart spindles with the option for data export (SMI24 – Sensor module integrated) as well as standard spindles. In addition to drilling spindles and grinding spindles, the product range also includes geared spindles and lathe spindles as well as milling spindles. Individual spindles and special drives are also manufactured by Weiss Spindeltechnologie GmbH.