The chain rings are CNC milled and powder-plated or inductively hardened on request. All chain rings are pre-fitted on the basis of a special procedure, so that they can fit up to 100% during assembly. Of course we also supply the matching pinion which are ready for installation. In principle, we produce the rotary sprockets for all divisions up to a drum diameter of 5 meter as well as sprockets up to a dimater of 2,800mm and 3.5 t item weight.