STUDER launches CNC universal cylindrical grinding machine for complex job
The S41 CNC universal cylindrical grinding machine is characterized by outstanding technology and cost-effectiveness. The machine grinds with much higher precision, paired with a much greater metal removal rate. In addition the longitudinal and cross slide, as well as the swivel axis for the wheelhead are equipped with electric direct drives, which move to the working position much more quickly and precisely.
Higher precision, better surface quality, higher metal removal rates – these are the constantly increasing requirements made by the market on the cost-effectiveness of grinding machines in a nutshell. In fulfilling these requirements, Fritz Studer AG once again sets standards with its S41 CNC universal cylindrical grinding machine. The developers used the practical know-how from a predecessor machine proven worldwide over many years, but the machine scores with a number of outstanding design features. It works more quickly and precisely and also offers a broader range of applications, with production options that are highly attractive with regard to cost-effectiveness. And by saving on auxiliary times, it considerably shortens the cycle times of the grinding process.
Maintenance-free guide system
The new StuderGuide® guideway system ensures high precision of the longitudinal and cross slides when both stationary and during movement. The StuderGuide® guideway system uses the advantages of hydrostatic and hydrodynamic guide systems and avoids the slip-stick effect or floating of the slide. Also contributing to the machine’s high precision is the fact that the solid gray cast iron longitudinal and cross slides rest completely on the guideways over the entire travel. With this maintenance-free guide system, Studer guarantees a straightness of < 0.003 millimeters over a measured length of 950 millimeters. The first test results even gave values of < 0.002 millimeters.
Machine variants expand market potential for users
In addition to the considerable increases in working speed and precision, the S41 also has a number of advantageous characteristics which enable the user to cover an extended workpiece range, and thus a broader market range.
- For instance the height of centers on the standard version has been increased to 225 millimeters. The machine is also optionally available with a height of centers of 275 millimeters; this is not achieved by means of distance plates, but by making the workheads higher. The maximum distance between centers is 1000 millimeters on the standard machine, but a machine variant with a distance between centers of 1600 millimeters is also available. Thanks to the greater heights of centers and distances between centers, workpieces with weights of up to 250 kg can now also be machined. The machine is equipped with a hydraulically clamped tailstock for the heavier workpieces.
- Up to four external grinding wheels or three internal grinding spindles enable over 30 grinding head combinations. The grinding wheels are no longer driven by belt drives, but only by motor spindles. The machine can also be equipped with motor spindles for high speed grinding (HSG). Internal grinding spindles with speeds from 6000 to 120,000 rpm can be used. Automatic balancing systems and frequency converters for each external grinding spindle allow the grinding process to be specifically matched to the respective conditions of use. Wheel head variants are also available with a vertical spindle for grinding keyways or with a traverse-grinding axis for traverse grinding of internal tapers.
