OVIBRA VPI and VPJ vibration screens with directly activated sieves are machines designed for highly efficient operation coupled with low power consumption. The three characteristics making them stand out from traditional machines are:
1. Fixed riddle – because it's inductors, and not the whole riddle, that transmit vibrations onto the sieve, the machine transfers practically no vibrations onto the structure and the ground it's situated on.
2. Energy economy – in screening units of this type, the vibrations being limited only to the sieve bed and not the whole device allow the use of smaller, more power-efficient vibrators.
3. Self-cleaning – unlike many other machines of this type, the VPI and VPJ screening units are perfectly suited for screening both dry and moist materials. Thanks to their construction, they ensure effective operation even with materials having strong tendencies for clustering, clogging and blocking the sieves