The lubrication units belonging to ZS series are complete systems to produce the air-oil mixture, obtained dosing small amonut of oil in a continuous flow of air. The driving of the unit can be managed by the control of a tool machine. The pressurized lubricant arrive to a mixer where the air-oil mixture is made.  The unit can have filters both on the air line and on the oil line, the number of the outles can be from 1 to 10 and the oil pump can be pneumatic or electric. Compact in size and easy to install, is the cheapest way to have a safe oil+air lubrication.