Automatic tin can oil filling machine

For a tin can oil line, the can volume alone is not enough to determine the sealing system.

We normally recommend confirming the following before the sealing section is finalized:

• can height and body dimensions,
• can opening or neck dimensions,
• round or square can format,
• lid or closure type,
• can and lid supplier,
• lid samples,
• and the required sealing method.

This is especially important when a double-seam can seamer is used. The chuck, base plate and seam rolls must match the actual can-and-end specification. Professional can-seaming guidance recommends obtaining the manufacturer’s seam specifications for the exact can and lid being used.

For this reason, sending actual empty cans and lids before machine production is much safer than providing only a nominal size such as “5L tin can.”

Yes, the filling section can be customized for both round and square metal containers, and our current machine is specifically designed for multiple tin-can formats.

However, the downstream closure section needs to be considered separately.

Changing between can formats may require adjustments or dedicated change parts for:

• conveyor guides,
• can positioning,
• lid feeding,
• can height,
• sealing tooling,
• and closure alignment.

For double-seam applications, different can diameters or lid formats typically require matching chucks, base plates and related tooling.

Therefore, if your production plan includes 1L round cans + 5L square oil tins, both formats should be included in the machine design from the beginning.

You should verify the new cans before switching suppliers.

Two cans described with the same nominal dimensions are not automatically identical from a seaming perspective. Small differences in the can body, lid or flange geometry can affect the tooling and final seam quality.

Can-seaming specialists specifically warn that cans and lids from different manufacturers may require different chucks, base plates or other tooling even when the nominal size appears the same.

If you change suppliers after the machine has been delivered, we recommend sending new can and lid samples for compatibility confirmation before full-scale production.

This is particularly important for customers sourcing cans locally from several suppliers.

Not every edible oil project requires nitrogen flushing.

However, for premium or oxidation-sensitive products where controlling oxygen exposure is part of the packaging strategy, an inert-gas flushing step can be considered before final sealing.

Professional can-seaming systems can be configured with vacuum, inert-gas flush or multiple flush cycles where controlled-atmosphere packaging is required.

Whether it is worthwhile for your oil depends on factors such as:

• oil type,
• required shelf life,
• initial dissolved oxygen,
• headspace,
• can size,
• and your quality specification.

Therefore, we would not automatically add nitrogen flushing to every cooking-oil line. It should be specified only when your product and shelf-life requirements justify it.

For a double-seamed metal can, visually confirming that the lid is “closed” is not enough.

The final seam should be evaluated against the can manufacturer’s seam specification. Depending on your QC program, this may include visual inspection and measurements such as seam width, hook formation, overlap, tightness or other parameters specified by the can supplier.

Professional can-seaming guidance recommends regular seam inspection and additional checking whenever can size changes or sealing problems occur.

For a new filling-and-sealing project, we recommend including your actual:

oil + tin can + lid

during the machine test.

This allows the filling cleanliness, lid placement and final closure result to be evaluated as one complete packaging process rather than testing the filler and seamer independently.