Used oil machines include volumetric and piston fillers, mass-flow or gravimetric systems and weight fillers with load cells, along with T-cap inserters, screw and pilfer-proof cappers, capsulers and labellers for glass and PET containers.
Because oil is viscous and sensitive to oxidation, dosing technology and headspace management are the two questions that decide whether a given machine fits your product and formats.
Buying Guide — Used Oil Bottling Machines
Establish which dosing principle the machine uses and ask for its calibration and maintenance records. Volumetric and piston systems respond differently to temperature and viscosity than weight-based dosing, so match the technology to the oils and pack sizes you run.
Check product-contact materials and seals for compatibility, and confirm whether an inert-gas pre-flush or headspace system is fitted and working on that specific machine.
On the closure side, confirm the tooling supplied for your closures — screw, pilfer-proof, T-cap or cork — and the container formats the change parts cover.
Frequently asked questions
Which filling technologies are used for oil?
Volumetric and piston, mass-flow or gravimetric, and weight-based filling with load cells. Which one is appropriate depends on the product, the container format and the specific machine.
What documents should I ask for?
Calibration and maintenance records for the dosing system, material specifications for product-contact parts, and the manuals and electrical documentation available for that machine.
Does the machine need an inert-gas system?
Some oil fillers are equipped for inert-gas headspace management. Whether you need it depends on your product and packaging; check what is actually fitted to the machine.