The Cetos BUA 25A universal cylindrical grinding machine with teach-in CNC system boasts an unrivalled price-to-performance specification that will appeal to both toolmaking and production.

Manufactured in the Czech Republic by Cetos, the new BUA 25Auniversal cylindrical grinding machine with teach-in CNC systemnow available from Ward CNC of Sheffield boasts an unrivalledprice-to-performance specification that will appeal to bothtoolrooms and companies involved in either one-off or volumeproduction. With a swing diameter of 500mm and a distance betweencentres of 1500mm, the Cetos BUA 25A can accommodate workpiecesof 500kg. Workhead swivel and speeds are 90 degrees and 18 to 560revs/min, and wheelhead swivel is quoted as + 40 degrees to -15degrees.

Able to utilise 500mm diameter grinding wheels, wheelspeed is 1,695/1,960 revs/min and peripheral wheel speed is45m/sec.

Table feed rate is 0.05m/min to 5m/min.

The K51 teach-inCNC is a high-performance control system that allows grinding tobe performed under manual control or automatically, while alsoaccommodating longitudinal grinding with auto infeed at tablereversal points, wheel dressing and intermediate wheel dressing.In manual mode, wheelhead infeed length and rate control is via acontrol knob, which can be used to increase the step ten-fold.For manual longitudinal grinding, automatic infeed can beadjusted at the reversal points.

In volume mode, programs can becreated automatically during the grinding of the first workpieceby teach-in methods, with no special programming knowledge beingrequired.

Programming can also be by direct entry of cycleparameters.

As standard, up to 10 teach-in programs can be stored(ie five plunge-cut and five longitudinal grinding programs) andprogram changes can be easily accommodated for further work sinceeach change is automatically remembered.

The BUA 25A is one of anumber of Cetos grinders available from Ward CNC.

These alsoinclude other universal CNC cylindrical grinders as well asinternal/external, single/two-wheelhead cylindrical plunge andcrankshaft-type machines.