Shaft drive systems can be either mechanical split pulley or frequency inverter. With either drive the shaft starts from the minimum speed and increases smoothly to the maximum speed.

When stopping the machine the shaft is automatically reduced to the minimum speed. This reduces the chance of the disperser being started with a shaft set at high speed.

With a 5:1 mechanical speed reduction, the NMD is a significant improvement over the industry standard of 3:1, allowing both a lower minimum speed when required and infinite speed control.

The disperser shaft is constructed of a large diameter titanium alloy stainless steel held in place by large roller bearings and tapered to the shear blade for rigidity and strength. With its innovative design, NMD can operate in a wide spectrum of product viscosities and rheologies with superior stability.

The NMD is available in sizes from 20 HP to 90 HP.