Four-head volumetric piston filler featuring frame and tank manufactured from 304 stainless steel (SS) and all 316 SS wetted parts. Well-suited for many production environments and a wide range of products and containers
Types of liquid-filling machines
Liquid filler types include:
Net weigh fillers
Net-weigh filling machines are designed for use in applications that require containers to have consistent fill levels. This makes them ideal for bulk packaging applications and for the packaging of products of high value that require consistent accuracy, such as black printer ink, expensive perfumes and valuable pharmaceuticals like insulin.
Piston fillers
Piston-filling machines are useful for packaging high-viscosity liquids. They offer consistently speedy and accurate fill rates and a versatile design that enables them to handle many different types of liquids. They are often used to handle thicker fluids such as batters, pastes and aerated liquids. These liquids are normally squeezed using pastry bags and other packaging types that work in a similar fashion.
Pump fillers
Pump-filling equipment is used to fill liquids of all viscosity levels into a wide variety of containers. They can work with various types of pumps, including rotor pumps, lobe pumps and gear pumps. Certain parts such as fittings and valves will also depend on the specific application.
Overflow fillers
Overflow fillers are ideal for filling liquids with lower viscosity levels. Like net-weigh filling machines, they are ideal for installation in systems that require consistent fill levels, which is particularly useful when filling transparent containers. Vacuum overflow fillers are also used to fill small volume glass containers, along with other specialty applications.
Gravity/pressure-gravity filling machines for liquid chemicals
Gravity and pressure-gravity filling machines are often used to fill chemicals that are of low-to-medium viscosity levels. While gravity fillers mainly rely on gravity to fill products, pressure-gravity fillers apply additional pressure using a pump to fill thicker
liquids when needed. This is why gravity-filling systems are typically utilized to fill foamy or thin liquids, while pressure-gravity fillers can fill more viscous fluids.
Many thicker chemicals can benefit from packaging systems using pressure-gravity fillers. These products include pharmaceuticals, SAE 70 oil, glues and many others.
Facilities can use either traditional, fully integrated pressure-gravity fillers for packaging, or they can use tabletop pressure-filling machines that are more ideal for low-volume production lines. Pressure-gravity fillers are also used to fill containers of nearly any shape and size based on the specifications of the application.