Drive units in four performance ranges

The variable eccentric drive elements have been consistently further developed and are available in four performance ranges. They are easy to operate, extremely sturdy and safe against overload. More than 100 000 variable eccentric drive units are working in the most different applications worldwide.

The LEWA ecoflow drive units provide all requirements for a trouble free and low-wear operation. The compact, integrated worm-gears with different reduction ratios are characterised by a high efficiency and long maintenance intervals. Safe separation between drive element- and hydraulic oil for diaphragm pump heads is assured due to the double-sealed plunger rod. Multiplex drive units work in a common oil bath and require a minimum of dynamic seals only.

Advantages of the LEWA variable eccentric drive units:

	long service life
	low maintenance costs, long service intervals
	low energy requirements
	high safety against overload
	low adjustment forces of the stroke adjustment
	linear, fully reproducible precision stroke adjustment
	stroke length adjustment possible during   operation or at rest
	special designs available