Fill seal and pot filling machines for accurate, consistent production

Fill seal machines are designed to fill pre-formed containers and seal them in a single integrated process. They are used across food, dairy, condiments, cosmetics and pharmaceutical applications where accurate dosing, reliable sealing and consistent pack presentation are the key production requirements.

Our fill seal systems are available in inline and rotary configurations, covering a range of output levels and container formats. The right choice depends on product type, fill volume, container specification, required throughput and the level of automation suited to the operation.

 

How fill seal machines operate

Fill seal systems work by accepting pre-formed containers at the infeed, moving them through a filling stage where product is dispensed to a defined volume or weight, then sealing the container with a lidding film before it exits the machine. Depending on the specification, the process can also incorporate foil sealing, over capping, date coding and downstream transfer.

The filling stage is matched to the product being packed. Liquids, semi-liquids, viscous products, particulates and combinations of product types each require a dosing system that suits their flow characteristics and the required fill accuracy.

 

Inline vs rotary fill seal configurations

Inline fill seal machines move containers in a straight-line path through the filling and sealing stages. This configuration is well suited to a wide range of container formats and is commonly used in food, dairy and condiment applications. Rotary systems move containers on a circular carousel, which can support higher speeds where the product and container format are compatible. See our guide on rotary vs inline fill seal machines for a full comparison of both configurations.

 

Industries and applications

Fill seal systems are used across a broad range of sectors where accurate filling and secure sealing in pre-formed containers are the production requirement:

  • Dairy – yoghurts, cream, desserts, flavoured milk portions and pot-format dairy products
  • Condiments and sauces – dips, dressings, sauces, pastes and similar viscous products
  • Cosmetics and personal care – creams, gels, lotions and liquid products in pot or cup formats
  • Medical and diagnostic – precision filling for diagnostic kits, sample containers and medical product formats
  • Prepared food and ready meals – soups, sauces, accompaniments and component fills for multi-compartment formats

Speak to us for guidance on the fill seal configuration that best fits your product, container format and output requirements.

FAQs

FAQs

What types of product can fill seal machines handle?

Fill seal machines can be configured for a wide range of product types including liquids, semi-liquids, viscous products such as sauces and creams, particulates, gels and combinations of liquid and solid components. The filling system is selected to match the product’s flow characteristics and the required dosing accuracy. Speak to us to discuss the right configuration for your product.

What is the difference between inline and rotary fill seal machines?

Inline systems move containers through the filling and sealing stages in a straight-line path, making them well suited to a broad range of formats and output levels. Rotary systems use a circular carousel, which can offer advantages at higher speeds for compatible container formats. The right choice depends on throughput requirements, container specification and product type.

What container formats are compatible with fill seal machines?

Fill seal machines work with pre-formed cups, pots, jars and tubs across a range of sizes and materials including plastic, cardboard-based and aluminium formats, depending on the machine specification. Container compatibility should be confirmed with ILPRA UK as part of the specification process.

Can fill seal machines be integrated into an automated production line?

Yes. ILPRA UK fill seal systems can be integrated with upstream and downstream equipment including conveyors, product supply systems, coders, checkweighers and secondary packaging machinery. Integration requirements are reviewed as part of the specification process to ensure the machine fits correctly within the line. See our guide on automation and line integration for fill seal systems for more detail.

What dosing systems are available?

Dosing options include volumetric, weight-controlled and multi-head systems, each suited to different product types and fill accuracy requirements. The right dosing system depends on the product’s flow behaviour, the target fill weight or volume and the speed of the line. Our guide on choosing the right dosing system explains the key differences and applications of each approach

Get in touch

Speak to one of our experts

Get in touch with our team for tailored advice on which packaging solution is right for your products.