Filling Machinery UK | Liquids, Pastes & Powders

Filling machinery guidance

Selecting filling machinery for liquids, pastes, powders and granules

Filling technology should be matched to the product behaviour, target dose, container opening and cleaning method. The catalogue includes volumetric, peristaltic, pump, auger, weight and specialist filling options.

Liquids and low-viscosity products

Review free flow, foaming, drips, chemical compatibility and the risk of product contact with moving pump parts. Liquid filling machines include several dosing principles for different levels of hygiene, accuracy and changeover.

Viscous products and pastes

Thicker products may need positive displacement, wider product paths, heated or mixed hoppers and anti-drip nozzles. Compare the product at its actual filling temperature on the paste filling range.

Powders and granules

Bulk density, flow, dust, particle damage and settling determine whether an auger, vibratory weigh or other dosing method is suitable. See powder and granule filling.

Variables that change filling performance

Accuracy and output depend on more than the nominal fill volume. Product temperature can alter viscosity; particulates can restrict valves or nozzles; foam can limit the usable filling speed; and unstable containers may need neck support or controlled indexing. The smallest container opening and the largest particle should therefore be included in the review.

For multi-format work, list the full fill range and the normal production recipes. Changeover should cover product-contact parts, nozzle height, guides, conveyor settings and cleaning access. Where a filler will feed directly into capping or labelling, the line must also be balanced around the slowest operation.

Useful sample-trial information

Product sample and safety/handling information
Viscosity or flow description at filling temperature
Target and tolerance for each fill size
Container drawing and neck opening
Required rate and normal batch length
Cleaning method and changeover frequency

Compare the principal technologies before choosing a model.

Compare filling methods

Buyer questions

How do I choose between volumetric and peristaltic filling?

Volumetric piston systems are commonly considered for repeatable measured doses and can suit thicker products. Peristaltic systems keep liquid within tubing and can simplify product changeover. The product, dose, tubing compatibility and cleaning requirement decide the better option.

What information affects filling accuracy?

Product consistency, temperature, entrained air, particulates, dose size, container handling and the chosen dosing principle all affect repeatability. The required tolerance should be stated with the product and test conditions.

Can one filler handle very different fill volumes?

Some machines use interchangeable pumps, cylinders or recipes, but a very wide range can require change parts or a different machine size. List every required dose rather than only the largest.

When is a weigh filler more suitable?

Weight-based dosing is useful when net mass is the controlling requirement or when product density varies. The decision also depends on required speed, container handling and how the product settles.

Why is a product sample important?

A sample allows flow, dripping, foaming, particle size and cleaning behaviour to be assessed under realistic conditions before the final nozzle and dosing arrangement is agreed.

Filling project tools

Choose the dosing method and prepare a representative filling trial

Product behaviour, dose range, container opening, cleaning and the acceptance measure should be defined before output or nozzle count is compared.

The filling machine selection guide compares volumetric, peristaltic, pump, vacuum, weight, auger and vibratory routes without treating the table as a verified model specification. Use it to describe viscosity, particles, foaming, temperature, dust, bulk-density variation and product-contact requirements.

Before a trial

Supply representative product and all container formats.
Define fill or weight acceptance and measurement method.
State cleaning, recovery and changeover requirements.
Identify product supply, line height and downstream handling.

During project planning

Separate short cycle from sustained acceptable output.
Record the difficult product condition and smallest opening.
Include nozzles, feed system, guarding and controls in scope.
Reserve untested conditions for FAT or SAT.

Related machinery guidance

Filling machine selection guide

Match product behaviour and pack requirements to the dosing principle.

Filling trial preparation

Define representative samples, settings and acceptance evidence.

Cleaning and changeover

Plan product recovery, contact-path cleaning and first-off release.

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Filling selection questions

Common technical questions about filling-machine selection

Filling technology should be selected from the product, dose, container and cleaning duty together. These questions address variables that often change the shortlist even when the target fill quantity appears straightforward.

How does product viscosity influence filling-machine choice?

Viscosity changes how readily a product moves through the hopper, pipework, valves and nozzle, but it is only one selection factor. Temperature, shear sensitivity, particulates, stringing, foaming and the way viscosity changes during production can be equally important.

Describe the product at the coldest and warmest normal conditions and identify settling or separation. A representative trial should reproduce the supply arrangement and operating temperature because a product that flows during preparation may behave differently after standing or recirculation.

Compare dosing principles in the peristaltic, piston and gear-pump filling guide.

What is the difference between fill-by-volume and fill-by-weight?

Fill-by-volume dispenses a controlled geometric or metered quantity; fill-by-weight uses a weighing signal to stop or correct the dose. The better approach depends on product consistency, pack handling, target declaration, speed requirement and how the finished result will be verified.

A volumetric result can vary in mass if product density changes. A weighing process must control vibration, pack tare variation, dribble and settling. Neither method should be selected from the name alone: the acceptance method and representative product condition should be agreed first.

The filling selection guide places these options in context.

When is bottom-up filling worth specifying?

Bottom-up filling can help when the nozzle should remain close to the rising product level to control splashing, aeration or foam. It may also be useful when a product strings from the nozzle or when the container opening makes a high free-fall undesirable.

The required nozzle movement depends on the product and container. Confirm available neck clearance, fill profile, nozzle outside diameter, withdrawal timing and whether the nozzle may contact the product. A trial should check the entire dose range and container-height range.

See why filling results vary for related diagnostic factors.

How should cleaning and product changeover affect filler selection?

Cleaning and changeover should be treated as part of the production cycle. Compare the product-contact path, dead spaces, disassembly, drain-down, flushing or dry-cleaning method, access, change-part identification and the checks needed before restart.

The correct method depends on the product risk and the site procedure. Record allergen, colour, fragrance, pharmaceutical, cosmetic or chemical cross-contamination concerns where applicable, and require a competent site-specific assessment rather than relying on a generic claim.

Use the cleaning and changeover guide to structure the review.

Provide product samples, the operating temperature range, target fill range, container details and cleaning expectations for a defensible filling review.

Discuss the application

Filling project specification

Connect the dosing principle to the container and quantity-control method

The same product can require a different filling solution when the container opening, dose range, temperature, foam, particles, legal quantity-control method or cleaning duty changes. Treat the filler, product supply, pack handling and checking process as one system.

Container handling guide

Define opening, base stability, tolerances and the empty-to-filled condition.

Packaged-goods quantity control

Relate filler settings to suitable checking equipment, records and the packer's system.

Isobaric or atmospheric filling

Compare carbonated and non-carbonated liquid filling conditions.

Questions to resolve before quotation

What is the product condition at the filler inlet?
Which dose, fill level or net-quantity result will be accepted?
Which container is least stable or has the smallest opening?
How will cleaning, recovery and product changeover be performed?
How will adverse fills be detected, rejected or quarantined?

Filling control basis

Should the dose be controlled by volume or by weight?

The correct answer depends on the quantity that must be controlled, density behaviour, tare variation, product in flight, container stability, line duty and the acceptance measurement. The comparison guide separates the dosing principle from end-of-line checking.

Filling Machinery

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Atex Filling

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Carbonated Filling

Sachet Filling

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