Customised solutions and efficient standards create space for seamless automation

At the round table, the drive specialist from the Allgau region also presents hollow shaft brakes for applications with high torque and a large space requirement inside the application.

In automated production systems, on robots or on gravity-loaded axes, the protection of people and material is essential; uncompromising safety must not be up for discussion. Safety brakes built according to the fail-safe principle - i.e., applied in de-energised condition - provide the foundation here.

The ROBA topstop from mayr power transmission holds the loads in position reliably and prevents uncontrolled movements in case of power outages or emergency stops. As they are placed between the motor and the output, the brakes can be retrofitted in existing constructions - a solution that reduces effort and costs.

For everyday industrial use, the ROBA topstop brake system is designed as an independent, compact module. O-rings at the interfaces ensure reliable sealing against dust and moisture - the brakes achieve IP66 protection as standard. The vertical axes remain secured even when the drive is dismantled, which is advantageous during maintenance and transport. Thanks to the adaptable flange dimensions, the system can be easily integrated into existing constructions.

Brakes from the modular ROBA servostop series are suitable for a wide variety of installation situations. There is a choice of servo brakes for standard servo motors with hub and toothed rotor, in classic or slim design. The ROBA servostop Cobot is the ideal solution for integration into the joints of lightweight robots.

Hollow shaft brakes for special requirements

Torque motors with a large, free inner diameter are used in applications with high torques. Rotational freedom and unobstructed installation space on the inside are decisive factors here. From robotics through observation technology to maritime systems and deep-sea robotics: Such high-performance direct drives solve several design problems and, thanks to their annular construction, are what make certain designs possible in the first place.

One challenge is finding safety brakes that fit the same annular geometry. mayr power transmission develops electromagnetic hollow shaft brakes as customer-specific solutions for precisely this requirement. These brakes can be seen at the sps (hall 4, booth 278) and can be discussed with the experts on site at the round table, so to speak.

Smart monitoring, connected data

With the ROBA brake-checker, mayr offers a module that monitors the safety brakes without the need for additional sensors. It recognises the brake's condition based on current and voltage trends, enabling proactive maintenance. Critical parameters - such as switching time, coil temperature, and functional reserves - are reliably detected.

The additional ROBA gateway module renders the solution network-compatible so that the collected data can be integrated into existing remote maintenance systems or digital twins can be created, for example, thus ensuring smart production and more transparency in the drive line.

Validation tool simplifies dimensioning

Besides the technology, mayr also offers support during engineering: a specially developed validation tool with the safety characteristic value B10d makes dimensioning according to DIN EN ISO 13849-1 easier. This is a user guide or checklist that provides bundled and structured information on the brake, in accordance with the standard, regarding fundamental and well-tried safety principles, well-tried components, fault lists, etc. according to DIN EN ISO 13849-2.

This allows design engineers to easily and reliably check whether the brakes may be considered well-tried components within the meaning of the standard for the respective application or - and this is an important point for safety - whether they may not. The fact that the ROBA topstop has been deemed a "well-tried component" as per category 1 by TUV (German Technical Inspectorate) is particularly helpful.