The PRÄWEMA GreenFinisher® combines the machining processes of turning, gear hobbing and deburring, and, where required, milling or drilling, in one machine. This makes it possible to realize all production stages from casting to hardening in the GreenFinisher®.
Face and bore grinding can be integrated in one machine
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.
With the HardFinisher® Präwema presents a two-spindle machine system capable of performing all hard, precision machining work on parts with internal or external teeth. Our HardFinisher® combines the processes for production of hardened gears on production lines, previously requiring a number of machines for grinding the bore/flat surfaces and then precision machining the teeth.HardFinisher® - the machine for complete gear production
With the HardFinisher® Präwema presents a two-spindle machine system capable of performing all hard, precision machining work on parts with internal or external teeth. Our HardFinisher® combines the processes for production of hardened gears on production lines, previously requiring a number of machines for grinding the bore/flat surfaces and then precision machining the teeth.
As a specialist for machining synchromesh parts, Präwema offers highly efficient and economical solutions. The machines from Präwema allow nearly complete machining of synchromesh parts as well as other transmission components.
The SynchroForm® is distinguished by its logical and thoroughly thought-through layout. This takes into consideration the technological requirements as well as simple and reliable workpiece handling. Whether vertical or horizontal design, whether single or multiple spindle version, combined processes in one machine or separated processes in an interlinked system; Präwema offers the most economical solution, matched specifically to your requirements.
SynchroFine® 205 HS (W) high performance gear honing machine
Machining results depend on quality of preliminary machining
Short cycle times for superior process reliability
Universal possibilities for using this process for straight and helical gears, shafts and wheels.
In terms of the static and dynamic characteristics, the honing process places higher requirements on machine construction than any other machining process. For this reason superfluous axes were already eliminated on the predecessor model.
The “SynchroFine® 205 HS” represents a consistent advancement of this concept. The result is the familiar PRÄWEMA honing quality. The directly driven, digitally controlled spindles for tool and workpiece form the heart of the machine.
In combination with the high drive power installed, this allows extremely precise and rigid coupling between the tool and workpiece even at the highest speeds. The entire machine rests on a natural granite bed and the workpiece spindle is positioned on a separate granite support to minimize vibration and temperature influences. The X and Z axes are equipped with linear motors on the SynchroFine® 205 HS. This ensures higher dynamics for even better machining quality while simultaneously reducing the cycle times.
The SynchroFine® IH was developed by PRÄWEMA especially for hard machining of internal teeth. The machine has a vertical design and is distinguished by its high rigidity, thermal stability and accuracy. Special features include the natural granite machine bed, linear drives on the feed axes and an extremely precise and stiff rotary coupling between the tool and workpiece even at the highest speeds.