In elevator safety brakes, noise levels are a central consideration. At Interlift 2025 in Nuremberg, market leader mayr® power transmission will present a new, revolutionary damping system. It not only makes the brakes whisper-quiet, but also enhances stability and can increase safety over the service life. In addition, it enables reliable, intelligent brake monitoring - without any additional sensors.
Wherever elevators transport people, passenger safety takes top priority. In addition to safety, the noise level is an essential factor when selecting brakes. For this reason mayr® power transmission is constantly further developing the damping system of its brakes and offers new, technologically advanced solutions. After all, it is important that elevator brakes reliably provide safety in every operating state and that switching noises are practically non-existent – and not just when the brakes are in new condition, but over their entire service lifetime. Long-term testing confirms that mayr® brakes maintain a low noise level (below 65 dB(A)) after several (up to 5) million operations without compromising the required consistency of the safety system. This is made possible, among other factors, by a new, patented damping system based on the special geometry of the armature disc. This is a new selection variant instead of the previous patented adjustable elastomer damping and offers further advantages.
Safety goes beyond EN ISO 8100: Thermal stability for enhanced service life and safety
Elastomer-based damping systems are prone to aging under thermal stress. This can lead to a deterioration in noise development over time Against the background of the new EN ISO 8100-1/2, the standards committees are currently discussing daily brake force measurements, which are intended to contribute to greater safety. Concerning the existing European standards EN 81-20/50:2020, which will also be replaced by new EN ISO 8100-1/2, must be taken into account, that daily braking force monitoring can ensure quality levels and point out deficits in braking force.
mayr® has opened new possibilities with the new integrated metallic damping system: The new system is particularly durable and insensitive to temperature, as the modulus of elasticity of the metallic damping remains constant between 0° and 80°C. Brakes equipped with this damping technology also achieve higher power density and require less energy and material. Mechanical adjustment is no longer necessary.
Perfect safety system: mayr® brake + brake control
This next-generation damping solution also enables intelligent brake monitoring—without additional sensors. This monitoring is possible by combining the metallic damping system with the retrofittable ROBA® brake-checker module, which is connected to the brake's power supply. The module uses an advanced analysis of current and voltage to detect the movement of the armature disc and knows the brake’s operating state. In addition to monitoring the switching status and critical coil temperatures, the ROBA® brake-checker provides preventive function monitoring for wear, function reserve and faults.
In an extended version, the module is equipped with an additional PCB with a customer-specific interface (e.g. Ethernet based). Via this interface, data concerning the switching time, current, voltage, resistance, performance and functional reserve can be provided. This means that processes can now also be evaluated, anomalies in the process can be detected quickly and conclusions can be drawn from complex interrelationships; and also the integration into remote maintenance systems is possible. Maintenance can thus be planned. This results in potential savings by eliminating time-consuming and cost-intensive services. The module itself now provides detailed information about brake condition. However, procurement costs and service costs must be combined to achieve this. Brakes with the new generation of dampers can now be retrofitted 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 draw on decades of experience in the field of brake monitoring and can contribute the necessary technology for integration directly into the clients control system if required.
Mayr® presents the complete solution at Interlift 2025 in hall 1, booth C200.
