-Micro-pump is powered miniature DC motor drive, drive internal mechanical eccentric eccentric movement, driven by an eccentric movement inside the diaphragm reciprocates. Whereby the pump chamber fixed level of air flow compression (compression suction interface is closed, the Dc Vacuum Pump exhaust slot is produced to open slightly positive pressure), stretching 
(compressed exhaust interface is closed, a poor pressure sucking mouth open up), the pumping surroundings 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 medication, gas analysis sampling, instrumentation and additional fields. Completely maintenance-free, no oil pump, do not pollute the transmission moderate.
-Small, stable and reliable, hand-kept instrument for pump-priming, low noise, low power consumption. Especially -appropriate for high negative environmental requirements.