FIELD: testing equipment.
SUBSTANCE: unit contains rack, secured on the foundation, bedplate installed on rack, camera and abrasive silo located on the bedplate, abrasive feed channel connected with silo, and air feed channel, they are inputs to the mixer, output from mixer is nozzle for air-abrasive mixture feed, it as the sample holder is located in the chamber. The unit additionally contains heater of the air-abrasive mixture secured on the mixer, sample heater secured on holder, branch pipe installed in the chamber through the thread hole in side surface of its casing, to fix the nozzle in chamber and distance to work surface of the test sample in the holder, flange installed on the chamber base using thread connections to fix the holder with test sample in chamber at angle to the nozzle axis.
EFFECT: expansion of functional abilities of the unit, and increased authenticity of tests.