Extreme Metal Removal Rates

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. The height of centers on the standard version has been increased to 8.9 in. The machine is also optionally available with a height of centers of 10.8 in. This is not achieved by means of distance plates, but by making the workheads higher. The maximum distance between centers is 39.4 in on the standard machine, but a machine variant with a distance between centers of 63 in is also available.

Thanks to the greater heights of centers and distances between centers, workpieces with weights of up to 551 lb can now 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 by motor spindles. The machine can also be equipped with motor spindles for high speed grinding (HSG). Internal grinding spindles with speeds from 6000 rpm 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. Wheelhead variants are also available with a vertical spindle for grinding keyways or with a traverse grinding axis for traverse grinding of internal tapers.

Fatigue-free working and straightforward machine operation are important components for consistently high quality. Hoses and cables have largely disappeared from the work area of the machine. Grinding wheel change is performed with a single Allen wrench, and a special small crane is integrated into the machine, so that heavier grinding wheels do not have to be lifted manually.

The Fanuc 31i-A machine control with integrated PC operates with the StuderGRIND software specially developed for the grinding processes, and the StuderWIN operator interface. A 15 in touch screen and ergonomically arranged controls are available to the grinder for communication with the control system and for programming. An additional manual control unit facilitates setup of the grinding processes. The convenient electronic cut-in detection facilitates operation and contributes to increasing precision and reducing auxiliary times.

The software also contains tools for programming form and contour grinding processes, and enables offline programming of grinding processes as well as the determination of important basic cycle data to give the user a good basis to quote grinding tasks to his customers. A free-standing operating panel with adjustable height is also available.

UGT considers itself a partner for the customer in the design of technically and economically optimized grinding processes. The efficient grinding of workpieces requires process-optimized complete solutions. This includes an integrated quality control system based on continuous measurement, re-measurement, recording and correction. Grinding of workpieces with modular peripheral equipment such as loading/unloading systems can be seamlessly integrated into the complete production process. The automation systems of the peripheral equipment communicate with the S41 by means of standard interfaces, so that even complex handling tasks can be carried out.

UGT’s universal, external and internal grinders are supported by an expert team of grinding specialists and technicians drawing on more than 10,000 machine installations and a worldwide support and service network. www.grinding.com