MD type works as an anti-vibration mount but also as an engine stabiliser. This mount is used when conventional rubber metal mounts do not offer sufficient stability to the suspended equipment. MD types are installed in small engines of 1, 2 and 3 cylinders which are particularly unstable – Motor Pumps, Gen Sets, Compressors, Ventilators
These mounts are suitable for the suspension of machines which are subject to frequent start /stop conditions and also where the passage of resonance needs a high degree of damping . Or working in conditions which are close to the frequency of resonance of the system.
Diesel engines require MD type mounts, particularly when there are uneven numbers of small diameter cylinders, which create high-amplitude engine vibrations, therefore requiring extra damping to limit these high amplitudes.