Piston Pump, OEM Version, 25µL-5mL Volume

This product is a type of positive displacement pump where the piston reciprocates inside the pump cylinder. The micro piston pump is mainly designed for OEM instrument or equipment in the applications of precise sample diluting and dispensing. The piston pump has a variety of different configurations and construction materials to meet requirements of different resolutions of precision/accuracy and linear translation speeds and chemical compatibility. Also, the pump can deal with viscous media or media containing particles. Typically, this product has life time of 10 million cycles (DI water) that significantly reduce the maintenance cost.

Key Features

A variety of construction material options: PEEK, PEI and PMMA
Lead screw options: 20 TPI (2000 full steps) or 40 TPI (4000 full steps)
High accuracy: ≤0.5% (Rated Stoke, 12.7 mm)
Resolution: 0.00635 mm/step (2000 full steps) or 0.003175 mm/step (4000 full steps)
Pump speed: ≤12.7 mm/0.8s (Pump volume < 1 ml)
Maximum pressure: ≤0.68 MPa
Home position sensor is available
Optical encoder is optional
Maintenance-free (10 million cycles life time, DI water)
Excellent precision and accuracy for sample dispensing

Typical Applications

Spectrum analysis and spectrometers
Analytical chemistry instruments
Pharmaceutical production and dosing systems
Dialysis instruments or medical infusion pumps in medical application

Pump Head Material	PMMA, PEEK and PEI
Piston Material	Zirconia ceramic or PEEK
Seal Material	PTFE or UHMW-PE with VITON O-ring
Accuracy	≤0.5% (Rated )
Precision	≤0.1% (Rated Stroke) & ≤0.5% (≥10% of full stroke)
Rated Stroke	12.7 mm (2000 full steps)
Resolution	0.00625 mm/step (2000 step) or 0.003175 mm/step (4000 steps)
Piston Speed Options	≤12.7 mm/0.8s (Pump volume < 1 ml)
	≤12.7 mm/1s (Pump volume < 2.5 ml)
	≤12.7 mm/1.2s (Pump volume < 5 ml)
Expected Life	≥5 million cycles (crystallizable solution) or 10 million cycles with DI water
Initial Position Detection	Output low TTL at initial position
Initial Position Detection	Output high TTL at other position
Pump Pressure	≤0.68 MPa
Port Configuration	1/4''-28, 10-32 or M6
Dimension (L x W x H)	137.7 x 61.2 x 45 mm
Humidity	20% - 80% (RH)
Temperature	10- 40 °C
Weight	0.51 Kg
Step Motor Parameters	Step angle: 1.8°
	Phase: 2
	Phase voltage: 2.4 V
	Phase current: 1.2 A
	Resistance: 2.0 ohms ±10%
	Inductance: 4.2 mH ± 20%

Other Technical Parameters (20 TPI lead screw for 2000 steps and 40 TPI lead screw for 4000 steps)

Pump Type	Pump Volume (µL)	Pump Head Material	Pump Resolution (µL/step)	Pump Resolution (µL/step)
MP25-1L-A	25	PMMA	0.0125	0.00625
MP25-1L-B	25	PEEK	0.0125	0.00625
MP50-1L-A	50	PMMA	0.025	0.0125
MP50-1L-B	50	PEEK	0.025	0.0125
MP100-1L-A	100	PMMA	0.05	0.025
MP100-1L-B	100	PEEK	0.05	0.025
MP250-1L-A	250	PMMA	0.125	0.0625
MP250-1L-B	250	PEEK	0.125	0.0625
MP500-1L-A	500	PMMA	0.25	0.125
MP500-1L-B	500	PEEK	0.25	0.125
MP1000-1L-A	1000	PMMA	0.25	0.125
MP1000-1L-B	1000	PEEK	0.25	0.125
MP2500-1L-A	2500	PMMA	0.25	0.125
MP2500-1L-B	2500	PEEK	0.25	0.125
MP5000-1L-A	5000	PMMA	0.25	0.125
MP5000-1L-B	5000	PEEK	0.25	0.125