Gear grinding machines

The PRÄWEMA SynchroFine® XL gear grinding machine is laid out for profile grinding on internal and external gears, on disc and shaft-shaped parts. The machine is laid out in three versions and is suitable for generating gears for components up to Module 32 with an outer diameter of 2,200 mm. Naturally the machine offers an option for hobbing gears up to Module 8.The natural granite machine bed is your guarantee for the highest geometric precision as well as static and dynamic rigidity. The low heat expansion coefficient and high thermal capacity ensures maximum thermal stability. All values for long-term precision, rigidity and thermal stability are better than those achieved e.g. with steel, cast iron or polymer concrete.The motion stand (X1 axis) for the grinding unit also consists of natural granite. The Z1 axis (grinding stroke in axial direction of workpiece) is designed as a wear-resistant linear drive. This allows high feed rates with excellent precision. The pivot axis (B axis) for adjusting the workpiece helix angle is laid out as a wear-free torque motor. The axis can be clamped hydraulically for rough grinding. The stable shift axis (Y axis) allows optimum grinding wheel dressing, correction movements during the grinding process up to incorporation into five-axis grinding for corrections, scanning measurement of the teeth up to use of the grinding operation with revolving worm. The grinding spindle used for hob grinding has an automatic balancing system and structure-borne sound sensors for sparking in.