The platform-type vibrators are designed for compaction of concrete mixes in production of reinforced concrete slabs. They consist of several vibrating pillars mounted on common base plate. Two vibrators, generating vertical vibrations transmitted to the mould with concrete mix, are mounted on every vibrating pillar. To manufacture quality end products it is recommended to use platform-type vibrators in set with a control cabinet (ShUE) and to mould the mix in two modes – the first with vibration frequency of 20-30 Hz, and the second – 60-75 Hz.