The NTK series pneumatic piston vibrators are particularly suitable for conveying, compacting, and loosening bulk materials due to their directed vibrations, depending on the installation type. Additionally, processes can be mechanically stimulated and influenced. A unique feature of the NTK vibrators is their mounting. Either the housing or the piston is attached to the mass to be vibrated. When complemented with additional oscillating masses (SM), a vibrator can achieve a wide range of oscillation amplitudes and frequencies.