-Micro-pump is powered miniature DC engine drive, drive internal mechanical eccentric eccentric movement, driven by an eccentric motion in the diaphragm reciprocates. Dc Vacuum Pump Whereby the pump chamber fixed level of air flow compression (compression suction slot is closed, the exhaust slot is produced to open somewhat positive pressure), stretching (compressed exhaust slot is closed, 
a negative pressure sucking mouth open), the pumping air flow intakes with the outside atmospheric pressure difference, at a pressure difference, the gas pressure (suction) into the pump chamber, and discharged from the exhaust port.
-Micro-pump is principally used for medicine, gas evaluation sampling, instrumentation and various other fields. Completely maintenance-free, no oil pump, do not pollute the transmission medium.
-Small, stable and reliable, hand-held instrument for pump-priming, low noise, low power consumption. Especially -appropriate for high detrimental environmental requirements.