Product description

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.

Dimensions

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 40℃ 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%