Unused Vibration Transducer for a Alfa Laval / Tetra Pak Separator. Article number Alfa Laval: 55215801. Article number Tetra Pak: 6 - 55215801. Original manufacturer for Alfa Laval / Tetra Pak: Brüel & Kjaer Vibro, type VS-068., Type of Machine: Vibration Transduce, Article number Alfa Laval: 55215801, Article number Tetra Pak: 6 - 55215801