At EMO Milano 2015, Junker Group and Zema will be exhibiting together for the first time in Europe: Zema will be demonstrating a cylindrical grinding machine for shaft grinding and Junker will be featuring three different grinding machines at its Booth N06 in Hall 14.
Junker has reduced downtimes on the JUMAT 1S/30 KGi by integrating the longitudinal and radial positioning fixtures in the loading gantry. This move is meant to enable the grinding machine to achieve a good surface quality finish in the internal thread of ball screw nuts - with a minimal space requirement and short cycle time.
The Jupiter 125 centerless cylindrical grinding machine is designed to ensure the improved concentric grinding of cylindrical workpieces, using either corundum or CBN depending on the application. Centerless grinding enables high metal cutting output coupled with a long grinding wheel service life, allowing for substantial production advantages in large volume processing.
The Junker Lean Selection speed is designed to realize several grinding operations on tool blanks in a single clamping set-up. One or two high-performance grinding spindles mounted at the swivel-action wheelhead (B axis) work using the Quickpoint grinding method.
Zema will be demonstrating how its Numerika GH-1000 machine grinds the flange and journal of crankshafts with precision. This cylindrical grinding machine, with its hydrostatic X and Z axis and hydrostatically mounted grinding spindle, is suited for grinding an array of workpieces for the automotive industry such as cardan or transmission shafts.