-Micro-pump is powered miniature DC motor drive, drive internal mechanical eccentric eccentric motion, driven by an eccentric motion in the diaphragm reciprocates. Whereby the pump chamber fixed volume of air compression (compression suction slot is shut, the exhaust interface is created to open slightly positive pressure), stretching (compressed exhaust interface is closed, a negative pressure sucking mouth open), the pumping atmosphere intakes with the outside atmospheric pressure difference, at a pressure difference, the gas pressure (suction) in to the pump chamber, and discharged from the exhaust port.
-Micro-pump is mainly used for medicine, gas analysis sampling, instrumentation and various other fields. Completely maintenance-free, no oil pump, usually do 
not pollute the transmission moderate.
-Small, stable and Dc Vacuum Pump dependable, hand-kept instrument for pump-priming, low noise, low power consumption. Especially -suitable for high negative environmental requirements.