Shoulder-type and high-frequency concrete vibrators can both be used to compact fresh concrete, but their mobility and working arrangements differ.
Shoulder-Type Vibrator
The motor unit moves with the operator, making this format useful where frequent movement around the jobsite is important.
High-Frequency Vibrator
High-frequency poker vibrators are available with different head diameters and can suit planned concrete-placement work where head size and access are important.
What Determines the Choice?
Mobility, reinforcement spacing, concrete-section dimensions, expected duty cycle and head diameter all matter.
For head-size differences, see Concrete Vibrator Selection.
Related: Concrete Vibrator Prices and Models · FAYER Concrete Vibrator | 50-80 mm Models