• News Blog

    Keep up to date with the latest news, insights and features from the Adelphi Group of Companies

  • Filling Machines: How They Can Improve Your Output

    July 11, 2023

    Investing in a filling line is the best way to increase productivity without reducing your margin. The key is to plan for growth. Things to consider are space, operator capability, desired production rates and budget.

    Transitional growth

    Moving from manual filling to a semi-automatic filler, or from a semi-automatic filler to an automatic filler, upgrading the process in stages, can be a good economical way to scale if you are a small business.

    Accelerated growth

    Accelerating by adding a full new line is a way to grow at a faster rate but requires more investment up front.

    Liquid Filling Machine

    An automatic or semi-automatic liquid filling machines can improve accuracy of fill thus reducing wastage and can increase the amount of vessels filled by adding more nozzles to each fill process and increasing output.  Depending on the industry that requires the filling, filling machines can be designed with high accuracy, with aseptic set up, or hygienic set up, and most are designed to strip down and be cleaned between filling by an operator and in situ. Volumes of fill can often dictate the best method for filling, such as a pharmaceutical fill usually looking for very high accuracy in small volumes, often 10ml or less, or a large volume IBC filler which is less dependant on high accuracy but may need to be accurate to avoid foaming or spillage of high value or hazardous materials.


    Semi-Automatic Filling Machines work well in a small to medium scale production area, and larger businesses can utilise this flexible method for R&D projects and seasonal products.

    Using a foot pedal to trigger the filler, the operator has good control over the filling speeds. The operator will also place containers under the filling heads.


    Automatic liquid and bottle filling machinery is ideal for large businesses who have a large output or for those who have outgrown their semi-automatic filler. This still requires operator input and supervision but is less dependent on their manual dexterity. This tends to mean batches can run for longer and shifts of filling can be longer, often with a 24-hour ambition.

    Conveyors pass bottles through the machine and filling is set on an automatic cycle, so operators are freed up to assist with other tasks such as capping and packing.

    High Accuracy Volumetric Filling Machines

    Volumetric fillers are used for filling free flowing materials and work by measuring a volume of the product into the container rather than by weight or size of container. There are different types of volumetric filler, and the most common ones utilised every day in industry are piston fillers and flowmeter.

    Piston filling machines

    This type can be good for products that are thin up to moderate in density, such as oil, beverage, dairy, and some paints. The accuracy comes from measuring the displacement of the piston in the cylinder and ensure a consistent and precise fill volumes. This is important in industries that are regulated to produce a standard weight or volume of product. The e-mark we see on our packaging as consumers is a sign in the EU that the volume or weight method has been used by the manufacturer during packaging. The most common industries that use volumetric filling are pharmaceutical, cosmetics, and food and beverage.

    Flowmeter filling machines

    Flowmeter filling machines work with the aid of an electronic sensor which measures flow of liquid and cuts it off, via a system of valves, after the pre-programmed quantity of fluid has passed the sensor. A pump that is suitable for the viscosity of the product is used to keep the flow at a consistent level to product the accuracy.

    Flowmeter Fillers can also be operated from a gravity-fed system, whereby product is supplied under the force of gravity from an elevated storage tank. This can have its pros and cons, so the method is usually dictated by the viscosity of the product.

    As the flowmeter system has fewer mechanical parts, for example no piston, it can seem quicker and easier to clean so can suit an environment where cleaning between runs is required.

    Weigh scale filling machines

    Utilising sensors and high accuracy weigh scales is another way to fill liquids and liquids. They are well suited to bulk filling. They are also referred to as Net weight fillers.

    Higher Output with Quality Machines

    There are a high range of filling machines available globally but not all are built to a quality. Investing in a build that has been built to a high standard will produce a better return of investment in the long term. Using easy to clean and durable materials for frames and 316 where hygiene is important in wetted or contact parts is a sign of quality. Building to high accuracy and consistent fill rate requires technical expertise and quality parts through a trusted supply chain.

    Explore Your Options with Adelphi

    Adelphi Masterfil offer a range of semi and automatic liquid filling machines with a choice of up to 12 filling heads. Their machines are available in volumetric, flowmeter, weigh scale and drum filling.

    Adelphi Manufacturing offer scalable solutions to incorporate any existing Response Benchtop Fillers into a Response Monobloc Filler and Capper or a Response Automation Base. Upgrading your current solution means your investment is never obsolete.

    Use our filter system on the left-hand side of our liquid filling page to personalise the information to your needs via container size and type, operation, output or system.

    For support in your enquiry contact us via the enquiry form, call or email. We are here to help your business grow.

    < Previous All blog posts

    Contact Adelphi