Detail | Schneider Optical MachinesThe SCG 250 has been designed with your requirements for perfect grinding in mind. The new frame concept is the basis for completely independent vertical and horizontal spindle arrangements as well as tool configurations. It unites perfect preconditions for the very different grinding tasks like spherical and aspherical.schneider vertical grinder universal head,Grinding | Schneider Optical MachinesThe manufacture of precision optics requires multiple grinding steps. SCHNEIDER's grinding machines can be equipped with different spindle configurations to support the customer specific process flow. SCHNEIDER's spindle systems range from mechanical to air bearing based systems utilizing different spindle speeds.