The Medo 45 Air Pumps linear-motor-driven free piston system has an internal piston inside the cylinder which is driven by an electro-magnet and spring system controlled by the alternating input current cycle.
The Medo 45 Air Pumps piston forms a single combined structure of two usually different devices; motor and pump.
The Medo 45 Air pump is quiet and vibration free, and offers the advantages of easy maintenance and a long operating life.
