The Roundtest RA-120/120P measuring device features a compact, simple to use features to measure part geometry on the shop floor. The device is designed with a ±1000μm wide range detector and a precision turn table with excellent rotation accuracy to meet the capabilities of a laboratory roundness measuring instrument. The main unit of the RA-120 model controls operations and features a dedicated processor and control panel.
The turnable table rotates with radial accuracy of (0.04+6H/10000)μm H at 6 rmp rotational speed. The table top measures 150mm diameter, features ±3mm, ±1° centering and probing range, 280mm maximum probing with ø380mm diameter. On changing of the detector orientation to the vertical position, only small samples of up to 50mm from the table top surface can be measured. Other dimensions include max. 440mm workpiece diameter, maximum table loading of 25kg vertical column (Z-axis), 280mm vertical travel, maximum probing height of 280mm from the turntable top and 100mm of maximum probing depth.