MP Series Micro Piston Pumps
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- Product Description
MP Series Micro Piston Pumps
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- Commodity name: MP Series Micro Piston Pumps
It features extremely high distribution precision and accuracy, with the primary function of providing constant-flow delivery of liquid media.
Product Introduction
◆ The MP series micro plunger pump is a precision dispensing pump independently developed by DICHUANG, with the primary function of delivering liquid media at a constant flow rate.
◆ This microplunger pump features exceptionally high dispensing precision and accuracy.
◆ Without compromising precision and accuracy, it boasts a service life of over 5 million cycles, making it a high-performance, low-cost, maintenance-free precision dispensing pump.
Technical Specifications
Plunger pump specifications Eight specifications in total: 25 µL, 50 µL, 100 µL, 250 µL, 500 µL, 1 mL, 2.5 mL, and 5 mL. Repeatability accuracy (using deionized water as an example) 100% allocation: <0.1%; full-stroke allocation accuracy ≥99.5%; 10% allocation: <0.5%; 1% allocation: <2%. Accuracy Full-trip allocation accuracy ≥ 99.5% Plunger full stroke 12.5 mm (2000 steps) Plunger travel speed ≤12.5mm/0.8s Travel resolution 0.00625 mm or 1 step Service life Advanced zirconia ceramic plunger machining and sealing technologies ensure a pump service life of over 5 million cycles, with no need for maintenance or servicing. Materials in contact with liquids The pump head is standardly configured with acrylic (PMMA); the plunger material is zirconia ceramic TZP; the sealing ring material is ultra-high-molecular-weight polyethylene UHMW-PE and fluororubber VITON. Drive motor Long-life, high-performance 1.8° two-phase stepper motor Position detection Optical end-position detection: the photoelectric reset sensor can determine the pump’s initial state, whether it is in the fully primed or fully dispensed position. Work stress 0–0.68 MPa Threaded connection The pump head is connected to the external piping via a 1/4″-28 internal-thread flat-bottom interface. External power supply Voltage: DC 24 V, Current: 1.2 A Work environment Temperature: 10°C to 40°C; Humidity: 20% to 80%. Plunger pump drive This micro plunger pump cannot operate independently and requires an external control circuit and external piping. Selection Guide
Product Model
Single infusion volume
Pump head housing material
Product Model
Single infusion volume
Pump head housing material
MP100-1L
100uL
PMMA (acrylic)
MP100-2L
100uL
PEEK (Polyether Ether Ketone)
MP500-1L
500uL
MP500-2L
500uL
MP1000-1L
1mL
MP1000-2L
1mL
MP2500-1L
2.5mL
MP2500-2L
2.5mL
MP5000-1L
5mL
MP5000-2L
5mL
External dimensions
Working Principle
◆ A stepper motor drives a lead screw, which in turn reciprocates the plunger within the pump head. This creates positive or negative pressure at the pump-head inlet, enabling fluid discharge or suction.
◆ Photoelectric sensors are used for zero-position detection to ensure precise positioning.
Motor Parameters and Interfaces
General Technical Parameters
Electrical Technical Parameters
Step angle
1.8°±5%
Phase voltage
2.4V
Number of phases
2
Phase current
1.2A
Insulation resistance
100MΩ MIX
Resistance
2.0Ω ±10%
Insulation class
Level B
Inductance
4.2 mH ± 20%
The 2-phase motor is controlled via the external control circuit connected to the 2510KF-4P plug. The wiring diagram is shown below:
Product Video
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