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Formwork vibrators and immersion concrete vibrators compact fresh concrete in different ways. The main difference is how vibration is transferred into the concrete.
Formwork Vibrator
A formwork vibrator is attached externally to the formwork and transfers vibration through the form face.
Immersion Vibrator
An immersion or poker vibrator places the vibrating head directly into fresh concrete. Head diameter must suit reinforcement spacing and available access.
Main Differences
| Feature | Formwork Vibrator | Immersion Vibrator |
|---|---|---|
| Vibration transfer | Through the formwork | Directly through the poker head |
| Concrete entry | Not required | Head enters the concrete |
| Selection factors | Formwork and mounting arrangement | Reinforcement spacing, concrete section and head size |
Related: Concrete Vibrator Prices and Models · FAYER Concrete Vibrator | 50-80 mm Models