How Laub/Hunt Packaging Systems Builds a Liquid Filling Machine – Part 1
How Laub\Hunt Packaging Systems Builds a Liquid Filling Machine – Part 1
White Paper: How Laub\Hunt Packaging Systems Builds a Liquid Filling Machine for Specialized Markets
Laub/Hunt Packaging Systems builds a liquid filling machine by starting with the product, container, and production target, then engineering the dose-control, sanitary design, and line integration around those requirements. For Laub\Hunt’s markets—bleach, pool/spa, food and beverage, industrial chemicals, household products, personal care, and automotive—the machine must be selected and built for the right fill method, material compatibility, cleaning approach, and safety controls.
Purpose and Product Fit
The first design decision is not the machine itself, but the liquid it must handle. Laub\Hunt matches the filling technology to viscosity, foaming behavior, corrosiveness, and whether the product is food-safe or hazardous, because those factors determine the most appropriate filler style and construction.
For example, low-viscosity products often use gravity, pressure, vacuum overflow, or timed-flow systems, while thick or particulate products often require piston or positive-displacement systems. This is directly relevant as Laub\Hunt’s customer base spans both thin chemicals and viscous consumer products.
Core Machine Architecture
A typical liquid filling machine includes a frame, product reservoir or feed system, pumps or dosing cylinders, fill heads or nozzles, controls, sensors, and container handling hardware. The manufacturer designs these modules so the machine can meter the correct dose repeatedly without splashing, dripping, foaming, or overfilling.
The frame is built for rigidity and corrosion resistance. Laub/Hunt manufactures its frames as one piece, welding rather than fastening pieces together. This makes the frame durable and easy to clean.
Product-contact parts are selected for chemical compatibility and cleanability. In sanitary applications, manufacturers often use quick-disconnect fittings, easier breakdown access, and smooth surfaces to reduce cleaning time and contamination risk.
Contact Laub\Hunt for more information. See part 2 of this series.
