Torque limiters / Safety clutches: The airbag for your machine

At mayr^®, the torque limiters / safety clutches are divided into load-separating and load-holding models. The former separate input and output in case of overload or collision. The latter limit the torque to the set value, but do not interrupt the torque transmission in the event of an overload - they hold the load with the set torque. All safety clutches can be equipped with switching devices that give a signal when the set torque values are exceeded or switch off the drive directly.

The mayr^® torque limiters and safety clutches can be used wherever torques or forces are transmitted and must be limited to defined maximum values in order to prevent damage to people and material. Specifically, they are used in the following areas, among others:

• in the construction of heavy machinery
• in conveyor technology
• in bolting technology for the food industry, the chemical, pharmaceutical and cosmetics industries
• in many other industries

Overload clutches, ratchet clutches and synchronous clutches are load separating safety clutches, i.e. they separate input and output completely in case of overload. Depending on the functional principle, however, the clutch re-engages in different ways.

• Overload clutches do not re-engage automatically. The clutch must be re-engaged manually or via an additional device.
• Ratchet clutches automatically re-engage after a certain angle of rotation, for example 15°.
• Synchronous clutches also re-engage automatically, but only at a specific engagement point after a full rotation.