MP Series Micro plunger pump is a small volume, high precision, long life products series. Mainly for equipment and instruments matching application. 
    It can transfer liquid less than 5ml. The users can drive the stepping motor to control it, or choose other driver.  There are two kinds of drive to choose:
       12.5-QD1 Without locked-rotor (speed range: 0.75-450rpm)
       12.5-QD2 with locked-rotor (speed range: 90-450rpm)
    Those two models have Electromagnetic valve drive interface, have RS485 communication interface. Address can be      set, can connect more than 32 set pump.

Electronic locked-rotor protection function, It will stop working when locked-rotor.

Product type:
 

Technical parameter
     Precision: ≤5‰
     Stroke length: 2000 step (12.5mm)
     Control precision: 1 step (0.00625mm)
     Plunger speed: ≤12.5mm/0.8s
     Max volume: 1ml
     Life time:≥ 5 million times
     Initial position detection: the initial position output low level, other position output high level
     Max pressure: 0.68MPa 
     Valve fitting: 2 pieces of 1/4″-28UNF inner thread interface 
     Shell of pump head: PMMK and PEEK
     Dimensions : 137.7mm×61.25mm×45mm
     Operating condition: Temperature 10 to 40ºC Relative humidity 20%-80%
     Weight: 0.5KG


? need to connect with one way valve when working
 Steppper motor data
      Step angle: 1.8°
     Number of phases: 2
     Phase voltage: 2.4V
     Phase current: 1.2A
     Electric resistance: 2Ω ±10% 
     Inductance: 4.2mH ±10%

Parameter of motor and sensor