Description Internal concrete vibrators use the pendulum principle. 3,000rpm of the drive unit translates via the flexible shaft into 12, 000 vibrations per minute in the poker head. The low output speed ensures high reliability and extended service life. It can be used between two types of drive units (interchangeable): electrical motor and petrol or diesel engine drive unit series, with 7 standard poker diameters. The vibrator poker is top of the range poker head suitable for professional application. Bar diameter 28mm, 32mm, 38mm, 45mm, 50mm, 60mm, 70mm
