Printing maschines

Every millimetre counts

Perfect synchronisation and precision – clutch and brake systems for modern printing machines

Utmost accuracy at maximum production speed

Printing machines operate at high speeds and face even higher expectations in terms of quality. Paper, film or label material must be guided through numerous stations – precisely synchronised, evenly tensioned and reliably positioned. Even the slightest deviations can be visible in the printed image: misalignment, uneven ink coverage or erratic material feed.

Modern printing technology often operates continuously. Rollers, printing units, transport shafts and changeover mechanisms must reliably handle millions of movement cycles.

The drive technology must therefore not only switch quickly. It must switch quickly and precisely – whilst consuming as little energy as possible.

Clutches and brakes play a vital role in this interplay – they connect and disconnect drive trains, hold rollers and shafts in position, facilitate format changes and bring dynamic movements to a controlled halt. In short: they ensure that numerous individual movements result in a smooth printing process.

When speed meets precision

Mönninghoff components can be used in various areas of printing machines, for example

in sheet-fed offset and digital printing machines
in label and packaging printing presses
in systems for film and speciality printing
in printing units and roller drives
in paper and material transport
for format changes and positioning tasks
in automated feeding, changing and register systems

The tasks vary, but they all share a common core requirement: every axis must transmit the correct torque at the right moment. A paper or film web tolerates no unnecessary vibrations. A printing unit must not continue to run uncontrollably during switching. And during format changes, a roller must hold firmly so that the next production run begins exactly at the intended position.

Requirements for clutches and brakes

Printing presses place high demands on drive technology. Of particular importance are

High precision Torque and position must be reliably reproducible even at high speeds.
Rapid switching operations Printing units, axes and drive lines must be able to be switched on and off without long interruptions.
Precise synchronisation Cylinders, paper feed and the printing unit must work together in a coordinated manner.
Minimal rotational play Even minor inaccuracies can affect register accuracy and print quality.
Controlled stopping and holding Cylinders and shafts must be securely positioned during format changes, maintenance or malfunctions.
High repeatability Every print job and every production cycle should run under the same conditions.
Durability The components must be designed for high cycle counts and long operating times.
Compact design In printing units and confined machine modules, there is often very little installation space available.
Energy efficiency In the case of continuously recurring movements, even a small energy requirement has a significant impact over many operating hours.
Low maintenance requirements Production availability and predictable maintenance intervals are crucial for cost-effectiveness.

The drive solution must therefore not only be suited to the speed or torque. It must understand the machine’s entire motion profile – from rapid start-up through synchronous gear changes to a controlled stop.

Synchronise, hold, continue printing

Mönninghoff develops clutch and brake systems that can be tailored to the dynamics and architecture of modern printing presses.

Electromagnetic toothed clutches

Electromagnetic toothed clutches enable defined, positive-engagement switching operations. They are particularly suitable for applications requiring a precise connection between the input and output shafts and a power transmission with as little play as possible.

Typical applications include

switching individual printing units on and off
synchronising cylinder and transport shafts
switching drive branches during format or product changes
defined switching operations in feed and register systems
the precise positioning of rotating assemblies

When two drive sides need to be precisely aligned with one another, a clear switching state is a real advantage. After all, in printing, it is not just that something is connected that counts – but also how precisely.

Spring-Applied Brakes

Spring-applied brakes can reliably hold shafts and rollers in position and provide controlled deceleration. Thanks to the spring-force principle, the braking function remains effective even in the event of a power failure. This is particularly important during maintenance work, emergency stops, or format changeovers.

Typical applications include:

Holding rollers in a defined position
Securing shafts during standstill
Controlled stopping during machine shutdowns
Supporting format changes and machine set-up procedures
Safely decelerating moving assemblies in critical situations

Particularly when dealing with heavy or high-speed components, a controlled stop is essential. A brake should do more than simply stop movement; it should complement the machine's operating sequence and motion profile.

Voice Coil Actuators

In addition to rotational movements, printing presses also require fast linear actuation. Voice coil actuators can provide an effective solution for such tasks. They are well suited to dynamic, short-stroke movements and highly repeatable positioning, for example in switching, positioning, or dosing applications.

Typical application areas include:

Fast actuation of printing and changeover mechanisms
Linear positioning tasks
Dynamic adjustments of material guidance systems
Compact switching movements with short response times

Where movement must be fast, compact, and precise, a compact actuator can make a significant difference, especially when space within the machine is limited and large mechanical systems are not an option.

Shaft Couplings

Torsionally rigid shaft couplings support accurate torque transmission between the motor, gearbox, and driven shaft. They can compensate for minor misalignment while helping to reduce vibration and unnecessary loads within the drivetrain.

In printing presses, this is particularly relevant for long shafts, roller drives, and synchronised axes. A properly designed shaft connection helps ensure that torque and motion are transmitted exactly where they are needed, without the mechanics introducing unwanted deviations along the way.

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From Print Job to Precision Motion

Whether in sheet-fed offset, digital printing, label production or film converting, Mönninghoff develops couplings, brakes, shaft connections and actuators for printing machinery where precision, dynamic performance and availability go hand in hand.

Looking to improve print quality, reduce format changeover times, increase machine availability or enhance energy efficiency? Talk to our experts about speed, switching cycles, positioning requirements and installation space. Together, we can help ensure that your machine maintains perfect registration, even at high operating speeds.

Precision Starts with the Right Design

Every printing machine has its own motion profile. A high-speed label press operates differently from a sheet-fed offset press, and a film converting process places different demands on web handling, tension control and dynamic performance than paper processing applications.

The following parameters can be critical when specifying the right solution:

Torque and speed of individual axes
Acceleration and deceleration characteristics
Switching frequency and cycle rate
Mass inertia of rollers and machine assemblies
Requirements for registration accuracy and synchronisation
Desired holding position and braking characteristics
Available installation space and existing shaft geometry
Temperature, vibration and environmental influences
Control system and sensor interfaces
Required service life and maintenance intervals

Mönninghoff looks beyond the individual component and considers the drivetrain as a complete system. This allows the ideal combination of coupling, brake, shaft connection and actuator to be matched precisely to both the machine mechanics and the control strategy.

When Your Prototype Needs Answers Early

During the development phase, prototypes and functional samples can help validate the future production solution at an early stage. In highly dynamic printing processes, practical testing often provides valuable insights. How does the coupling perform at high switching frequencies? How quickly and smoothly does the brake stop the system? Does positioning accuracy remain consistent after thousands of cycles?

Working closely with the development team, the following aspects can be evaluated:

Switching time and switching accuracy
Performance at high rotational speeds
Positioning and holding accuracy
Vibration behaviour and load changes within the drivetrain
Endurance performance and thermal loads
Integration into mechanical, control and sensor systems
Behaviour during emergency stops and restart conditions

This ensures that the solution is thoroughly tested long before it reaches the production machine, allowing performance to be verified well before the first sheet or web runs through the press.

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