Solid rock stability

A positioning accuracy of just 4µm in the linear axes and only four seconds of arc in the NC rotary table applies to the four machine Heckert HEC 1000/1250/1600/1800 models. The four machines also feature X-, Y- and Z-axis travels from 1,700mm x 1,250mm x 1,850mm (on the HEC 1000) up to 3,400mm x 2,800mm x 2,250mm (HEC 1800).

The use of an innovative ‘jacket’ creates a machine base that is thermally insulated against ambient temperatures and internal heat sources, and a temperature control system guarantees to keep all structural components at a constant temperature – thus eliminating the chance of fluctuations between foundation and machine base and bed.

In addition, the granite bed offers similar static and dynamic properties as a steel version but no thermal disadvantages – it has a 50% lower coefficient of linear expansion – nor magnetic or corrosion issues. Also, the use of water-cooled motors and ballscrews ensures uniform heat control and, in terms of the ballscrews, excellent heat dissipation.

Importantly also, routines in the machines’ CNC system include functionality that corrects any tool centre point displacements.

Starrag UK www.starrag.com