Piston Filling Machines from Liquid Packaging Solutions use a volumetric filling principle. The piston draws back, allowing a certain amount of product from the supply system to enter the nozzle. This same amount of product is then pushed out of the nozzle and into the waiting container.
Piston fillers are ideal for thick or high viscosity products. A piston filler is the perfect solution for pastes or sealants, allowing for an accuracy of fill from 1/2 to 1% by volume.