Filling systems

Every drop in time

Precise, hygienic and reliable – state-of-the-art braking and clutch technology for filling systems

Why traditional braking systems and clutches in filling systems often fail to meet requirements

Filling systems operate quickly, precisely and often round the clock. Whether it’s liquid, powder or a viscous product: ultimately, the correct quantity must end up in the correct container – reliably, cleanly and with as little waste as possible.

To achieve this, conveying, dosing, capping and positioning movements must interact precisely. A drive must not continue to run once the filling process is complete.

A clutch must engage cleanly when changing formats. And a brake must stop movements in a controlled manner without introducing unnecessary vibrations into the system.

Filling systems thus combine several demanding disciplines: high cycle rates, precise dosing, hygienic design and a level of availability on which the entire production process can rely.

When speed must give way to precision

Mönninghoff components can be used in various areas of a filling plant, for example

in dosing and filling systems for liquids, powders or paste-like products
in feeding and transport systems for bottles, cans, cups or other containers
in capping, labelling and format-change mechanisms
in wrapping, conveying and positioning units within the production line
in systems for food, beverages, pharmaceuticals and technical products

The following applies: the higher the cycle rate, the narrower the time window for a precise movement. Any inaccuracy can have a direct impact on fill volume, product quality or the reject rate. And any unplanned disruption not only costs time, but may also result in product loss and increased cleaning effort.

Smooth engagement, reliable production

Clutches and brakes in filling systems must do more than simply transmit power. They must control the process – and do so as unobtrusively as possible.

Key requirements include

Precise engagement Drives must be engaged and disengaged with precision to ensure that dosing and conveying movements run smoothly.
Controlled stopping Movements must come to a halt quickly, but without unnecessary vibrations or overshoot.
High repeatability Each cycle must correspond to the previous one – in filling, consistency is not a luxury.
High switching frequency The components must reliably withstand numerous start, stop and switching operations.
Overload protection Blocked containers, jammed components or foreign objects must not automatically lead to damage to the entire mechanical system.
Hygienic integration The design must integrate seamlessly into enclosures and cleaning processes.
Compact design Installation space is limited, particularly around dosing heads, format adjustments and tight axes.
Low-maintenance design Production lines are meant to produce – not to pause regularly because of the drive technology.

A good filling solution can be recognised by the fact that it keeps to the cycle time without itself becoming the trigger for maintenance and downtime.

Clutches and brakes for precise synchronisation

Mönninghoff combines different clutch and brake technologies depending on the task at hand. The key factor is optimising the system to suit the product, process, torque, speed and installation conditions.

Torsionally rigid shaft couplings

Torsionally rigid shaft couplings transmit torque with high precision and ensure stable synchronisation between the drive and the work process. Minor misalignment errors can be compensated for, whilst torsional play remains minimal.

This is important, for example, in the following applications

the synchronous movement of conveyor and dosing axes
the positioning of containers beneath filling or capping stations
the transmission of power to pumps, dosing units or winding units
the connection of motor, gearbox and drive shaft where installation space is limited

Less play here means greater process reliability – and fewer surprises on the journey from the stock to the finished container.

Torque limiters

In a filling line, even a minor blockage can quickly have a major impact. A container may not be positioned correctly, a capping head may become jammed, or product residue may end up in the wrong place. In such situations, an overload coupling can limit or interrupt the flow of force, thereby protecting downstream components.

SecMatic overload couplings and other customised overload solutions can be designed for specific torque limits. Depending on the application, a rapid release, a controlled reset or the simplest possible integration into the machine control system may be required.

The advantage: the plant is equipped with a kind of mechanical emergency brake, preventing a minor process error from turning into a major repair job.

Pneumatic toothed and switchable couplings

During format changes or frequent switching operations, short response times and a clearly defined switching state are required. Pneumatic toothed couplings and switchable couplings enable positive-lock connections and may be suitable for compact, dynamic applications.

Typical applications include

engaging and disengaging individual drive lines
format changes at transport or sealing stations
the precise positioning of tools and assemblies
switchover operations where residual torque must be avoided

The choice of actuation method and operating principle depends on the system architecture, the available power supply and the desired switching behaviour.

Brakes

In dosing, conveying and positioning processes, a safe and controlled stop is often just as important as a rapid start. Brakes can help to reduce overrun, secure positions and ensure movements transition smoothly into the next cycle.

Depending on the task, a holding brake for a defined stopping position or a controllable brake for gentle deceleration may be appropriate. With sensitive products or lightweight containers, it is particularly important to avoid abrupt movements and vibrations.

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Filling technology that does the right thing at the right moment

From dosing through to transport and capping: Mönninghoff develops couplings, brakes and overload protection systems for filling lines that switch precisely, stop safely and reliably protect the mechanical components.

Are you developing a new filling system, planning a format change or looking to make your existing line more reliable? Talk to our experts about cycle rates, filling accuracy, hygiene, installation space and overload protection. Together, we’ll ensure clean and fast filling.

Hygienegerecht ist mehr als leicht zu reinigen

In the food and pharmaceutical industries, drive components must fit into an overall concept encompassing hygiene, cleaning and process safety. It is therefore important to consider, right from the design stage, how couplings and brakes can be integrated into enclosures, protective measures and cleaning procedures.

Depending on the specific application, the following points, amongst others, may be relevant

suitable materials and surfaces
protection against product residues, moisture and cleaning agents
an installation configuration that is as protected and accessible as possible
low susceptibility to wear even with high switching frequencies
clear interfaces with machine control systems and sensors
reliable, repeatable performance even after numerous cleaning and production cycles

The technical solution must be tailored to the actual process. A plant for dry bulk materials has different requirements to a line for viscous foodstuffs or hygienically sensitive pharmaceutical products.

Correctly dimensioned from filling volume to installation space

No two filling systems are the same. The appropriate clutch and brake solution depends, amongst other things, on

the medium and its properties
the required filling accuracy
cycle rate and production duration
torque, speed and acceleration

Load cycles and potential blockages
the size and weight of the containers
the available installation space
cleaning and environmental conditions
the desired integration into control and monitoring systems

Based on these factors, Mönninghoff develops a bespoke solution – from selecting the appropriate operating principle through to mechanical design and integration into the plant.

Test first, then fill

Prototypes and functional models provide assurance before the production system goes into operation. During the development phase, switching behaviour, holding force, load capacity and overload scenarios can be examined under realistic conditions.

This allows for early verification of

whether the desired dosing and positioning accuracy is achieved
how the clutch reacts during the intended switching cycles
whether braking and holding operations are sufficiently smooth and safe
how the solution integrates with the control system, sensor technology and machine mechanics
whether the components are suitable for continuous operation and the cleaning concept

The result is a solution that not only works on the test bench but also operates reliably at actual production speeds.

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