Product behaviour
Viscosity, foam, particles, temperature and chemical compatibility.
Selection and comparison guides
Flow meter vs piston filling machines.
Flow meter and piston fillers both support measured liquid dosing, but the best method depends on product consistency, calibration, required speed and whether the product contains particles or changes viscosity.
Buyer intent guide
What to confirm before you choose a machine.
The best choice is rarely decided by one factor. A method that works well for a thin chemical may not suit a viscous food product, and a machine that is fast on one bottle format may slow down when changeovers are frequent.
Container details
Bottle, jar, pail or jerrycan size, neck opening, stability and closure.
Fill target
Fill volume or weight, accuracy tolerance and required bottles or packs per minute.
Automation level
Manual loading, semi-automatic operation, compact automation or full inline production.
Specification notes
How Lancing narrows the recommendation.
These points help make an enquiry more accurate and reduce the risk of selecting the wrong filling principle.
Start with the product, not the machine.
The same bottle filling machine can perform very differently when the liquid changes. A water-thin cleaner, a foaming detergent, a viscous sauce, a fragrance oil and a corrosive chemical each create different challenges. Product behaviour drives pump selection, nozzle design, materials and speed.
For a strong recommendation, include the product type, approximate viscosity, whether it foams or strings, whether it contains particles and whether it needs heating, mixing or special materials.
Match output to the full process.
Filling speed should be balanced with capping, labelling, operator loading and packing. A fast filler does not improve the line if bottles cannot be presented, capped or labelled at the same rate.
For growing production, Lancing can discuss a sensible route from semi-automatic equipment to compact automation or a fully automatic filling line.
Relevant machinery
Machines and ranges to compare.
These product pages are useful starting points when discussing flow meter vs piston filling machine.
Liquid Filling Machinery
Relevant Lancing machinery to discuss when specifying flow meter vs piston filling machine projects.
View productAutomatic Volumetric Filling Machine
Relevant Lancing machinery to discuss when specifying flow meter vs piston filling machine projects.
View productSemi Automatic Volumetric Filling Machines
Relevant Lancing machinery to discuss when specifying flow meter vs piston filling machine projects.
View productAutomatic Gear Pump Filling Machines
Relevant Lancing machinery to discuss when specifying flow meter vs piston filling machine projects.
View productFAQs
Common questions before requesting a quote.
What is the practical difference between flow-meter and piston filling?
A flow-meter system measures liquid passing through the product path, while piston volumetric filling uses a displaced volume represented by piston movement. Both require calibration and a suitable product path; the control method alone does not establish the accuracy of the finished pack.
Which product conditions should be compared before selecting a method?
Review viscosity, product temperature, conductivity where relevant to the proposed flow meter, suspended particles and the required fill range. Compare the complete feed, valve and nozzle path with representative product rather than choosing only from a stated machine speed.
How should two proposed filling methods be tested fairly?
Use the same representative product, production packs, target quantity and agreed measurement method. Record calibration, tare and density where used, sample size, individual results, filling head and start or restart conditions so the comparison separates average bias, repeatability and usable output.
Related guides
More ways to improve the specification.
Need a recommendation?
Send the product, container and output target.
Lancing will recommend a suitable semi-automatic, compact or fully automatic filling solution.