Safety Couplings

MALMEDIE Safety-Couplings have been used for more than 30 years as torque limiters in various executions (e.g. gear couplings, elastic couplings, cardan shafts etc.). They have thoroughly proven themselves even under very difficult application conditions, such as in the metallurgical industry and rolling mills, mining and the chemical industry.

Their function is characterized by high precision of disengagement and rapid reset. Thus the drive components of equipment can, on the one hand, be effectively protected from damage due to overload, and on the other hand lost production time can be significantly reduced. The possible variation in the number and size of the safety elements and of the effective diameter means that the maximum release (shut-off) torque can be selected almost without limit. The individual safety element cannot be overloaded if correctly chosen.

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The MALMEDIE Safety-Couplings range offers a large number of variants, so that an optimal solution can be found even for difficult applications.

Design and characteristics Unlike shear pins or break rings, the safety elements are not destroyed when disengagement is triggered, and can quickly be reactivated with the simplest tools, such as a hammer. If needed, two or more safety elements can be used for form-fitted and tension locked connection of two coupling flanges. Despite their compact design, the safety elements generate axial forces during transmission of the torque. These must be contained by special, precise and stable bearings of the two coupling flanges, and not transmitted to the connected drive units such as motors, gears etc. (see Fig.1). The MALMEDIE Safety-Couplings are suitable for use in reversing operation. On account of the diversity of the applications, MALMEDIE Safety-Couplings are adapted almost exclusively to the customer’s request. Only the safety elements are standardised series items.

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Features of Malmedie Safety Couplings:

  • High Load Capacity
  • Robust design
  • High Shut off accuracy
  • Fast re-engagement
  • Maintenance free
  • Suitable for use in Potentially explosive atmospheres according to directive 94/9/EU
  • Option available with automatic wear indicator

Advantages of the Malmedie Safety Coupling:

  • Low costs due to downtime
  • Suitable for reversing operation
  • Full unlocking
  • re-adjustable
  • Low risk of damage
  • Long service Life

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