New patented damping system for switchless monitoring

The noise level also plays a crucial role in lift safety brakes. mayr power transmission will be unveiling a new damping system at interlift 2025 in Nuremberg.

The idea is not just to make the brakes quieter but also to ensure greater stability and boost safety over the entire service life. In addition, it permits intelligent brake monitoring without the need for any additional sensors.


Apart from safety, low switching noises are an important factor when selecting brakes – and not just when they are new but also during the entire service life of the brakes. This is why mayr power transmission is permanently engaged in refining its brakes’ damping system.

Long-term trials have confirmed that mayr brakes also perform at a low noise level (below 65 dB(A)) even after several million switches (up to five) without impairing the consistency of the safety system, the company revealed. Among other things, this is facilitated by a newly-patented damping system, which is based on the special geometry of the armature disk. This is a new selection version in place of the previously-patented adjustable elastomer damping and features additional advantages.

Safety is more than EN ISO 8100 


Elastomer-damping systems age due to thermal exposure. This can be associated with a steady increase in noise emissions. Daily brake force measurements are under discussion in the context of the new EN ISO 8100-1/2:2025, which are intended to provide more safety. EN 81-20/50:2020 must be considered here too, which likewise will be replaced by the new EN ISO 8100-1/2 since daily brake force monitoring can secure quality levels and reveal brake force deficits.

mayr would like to offer new options with the newly integrated metallic damping system. The new damping was especially durable and temperature-resistant. The modulus of elasticity of the metallic damping always remained constant in the temperature range between 0 °C and 80 °C, the manufacturer emphasised. In addition, the brakes would achieve greater power density with the new damping systems and require less energy and material. Mechanical adjustment was unnecessary.

Brake monitoring without 
additional sensors


Intelligent brake monitoring will now also be possible without additional sensors. This is achieved in combination with the metallic dampers and the retrofittable module "Roba Brake Checker", which is connected to the power supply of the brake. By means of expanded analysis of current and voltage, the module is able to detect the movement of the armature disc and in this way identify the brake status. Apart from monitoring the switching status and critical coil temperatures, the Roba Brake Checker carries out preventive functional monitoring for wear, functional reserve and errors.

An extended version of the module features an additional board with customer-specific interfaces (e.g. Ethernet-based). Data on switching time, current, voltage, resistance, performance and functional reserve can be provided via this interface.

"As a result, processes can be evaluated, irregularities identified in the process and conclusions drawn from complex interrelationships. Integration in remote maintenance systems is possible too. This makes maintenance plannable," according to mayr. Savings potential arose due to the elimination of time-consuming and costly services. The module itself now provided detailed information on the status of the brakes. Brakes with the new damping generation permit retrofitting with the module.

Technology as an integration 
option in the control systems


Users are able to integrate the module easily and quickly into machines and systems without having to intervene in the ‚converter‘ or ‚control‘ components. However, as a special option it is possible to integrate the existing Roba brake-checker software (instead of the hardware module) into the clients control system, which can be considered especially for large quantities.

This can be done in the context of co-operations, for example. The brake supplier can contribute the necessary technology for integration directly into the clients control system if required.

More informations: mayr.com/en

Mayr will present the complete solution at interlift 2025.Hall 1 - Stand C200