The Most Commonly Manufactured Liquid Filling Machines

The most commonly manufactured liquid filling machines at LPS include gravity, overflow, piston and pump fillers. These four types of bottle fillers can help packagers prepare products as thin as water and as thick as pastes. The specific type of equipment for any single project will depend on a variety of factors.

Product Viscosity

Different liquid filling machines work better for different applications. Both gravity and overflow filling machines efficiently run free-flowing, or lower viscosity products. For thicker liquids, piston and pump filling machines provide an extra push to move higher viscosity liquids at better speeds. The product or products packaged provide a key clue as to the best filling machine for any packaging project.

Fill Principle

Gravity, pump, and piston fillers dispense liquid dispense liquid accurately by volume. From ounces to gallons and more, operators can pre-set the amount of product each bottle receives. Alternatively, the overflow filler allows a packager to fill bottles to the same level without regard for the volume of liquid dispensed. Different industries and different packages may benefit from these two filling principles. While the most manufactured machines work with these two methods of filling, others, such as net-weight filling, also exist.

Other Liquid Attributes

All the filling machines described above may be modified to handle unique products or projects. For example, a gravity filler may be constructed using HDPE materials to package corrosive products. A piston filler may include heating elements to keep a product at a specific temperature fill hot products accurately and efficiently. Piston filling machines may fill thinner products, as an exception to the general rule, when particulates are present in certain products, such as salad dressings or sauces.

While more than four filling machine types exist for packaging projects, the gravity, overflow, pump, and piston fillers are the most commonly produced machines because of their versatility. By adding options and making modifications, these liquid fillers can run a majority of the products packaged by our filling machinery.