Large workpiece grinding machine. S41. Power 0 kW - 15 kW. X travel 0 mm - 350 mm. Y travel 0 mm - 100 mm. The S41 is a CNC universal cylindrical grinding machine for large workpieces. It has distances between centres of 1000mm (40 ) 1600mm (63 ) and centre heights of 225mm (8.8 ).