Our quality control department is provided with the most modern instruments that guarantee that every machine manufactured by Gruber complies with all the requirements to ensure a perfect construction and assembly.
All the models are surveyed during the manufacturing process and every part is subject to a rigorous control under a strict system of tolerances.
Control of steel plates and shafts by means of ultrasound and magnetoscope.
Welding control by means of penetrant liquids, X-rays, magnetic particles and/or ultrasound inspection.
Performance tests to check the flow and pressure characteristics of the fans.
Mechanical running test for several hours prior to the delivery.
Shaft alignment by means of laser techniques.
Dynamic balancing according VDI-2060 standard.
Sound levels measurements in dB (A).