Long-term tests in the igus® acoustic laboratory showed reductions of 19-20 db(A) compared with standard Energy Chain® cable carriers, measured at a speed of 5.9 ft/s and an acceleration of 9.84 ft/s² (3 m/s²). Figure determined in the igus® laboratory in accordance with DIN 45635, taking into consideration background noises for Series E3.22.060.044.0.