The machine is suitable for chamfering of squared mono- or multi crystalline silicon workpieces in the format of 125 x 125 mm and 156 x 156 mm with two parallel arranged grinding aggregates

(2x combined pre- and fine grinding wheels).

Workpiece lengths of 180 up to 500 mm can be processed.

The fully automatic machine excels by following advantages:

• grinding of chamfers 45°

• equipped with two loading areas for manual and fully automatic loading, for instance via industrial robot

• pneumatic clamping of workpiece

• automatic edge detection and adjustment of grinding tools with block length detection for optimized cycle time by using high-resolution measuring systems

• detection and evaluation of workpiece specific quality data after grinding, for instance size of chamfer, chippings and unground chamfer sections

• automatic wheel correction

• high throughput even when a high removal is achieved by using 2 combined pre- and fine grinding discs, for instance:

Brick size as grown:          156,0 x 156,0 x 250 mm

Final brick size:                   156,0 x 156,0 x 250 mm with

a chamfer width of 1,0 mm

Cycle time:                           < 4 min

Machine capacity:               approx. 118.000 bricks/year

(based on a 24/7-production)

Optional:

• workpiece format 210 x 210 mm²

• ARPAT –“Arnold Remote Production Analyses Tool”- machine internal MES

Quality data of workpiece:

• geometric tolerance chamfer width +/- 0,05 mm

• average value Ra < 0,1 µm