Sinex ball vibrators are essentially ingenious inversion of well known "Peristaltic" pump. Here fluid drives a rotor, compressed air spinning a ball at high speed, which produces "Centrifugal Force", a rotating vector, to impart vibrations to the object on which vibrator is mounted.
a) European Quality – Indian Pricing. Issues Per Thousand Units Pneumatic Vibrators (IPTU) <1
b) Silent compared to competitors
c) Cost effective, maintenance free & long life