Rubber-Metal Buffers KP are made out of a steel, zinc-plated material. These buffers are used for elastic mounting. The load-bearing capacity is significantly lower than the pressure load when a shearing load occurs. This must be considered when a horizontal mass force or a belt traction happens.
The static permanent load can be overlaid by an alternating load. When a shearing load is being supported, no tension load in the rubber must be present during installation. A compressive pre-stressing must be provided before any operation to achieve fatigue strength. The model resists temperatures that go can up to 80 °C.
The buffers come in seven models which have various specifications to meet different industry needs.