The SPM OEM sequential microdispenser is a high-precision dosing module designed for seamless integration into automated instruments.
Compact, reliable, and versatile, it enables accurate handling of multiple liquids from the millilitre down to the nanolitre range.
General
Designed specifically for microfluidics, the SPM OEM microdispenser integrates a unique zero dead volume valve. This allows fast switching between liquids with minimal cross-contamination and excellent cleaning efficiency. The system offers smooth low-flow operation down to nanolitres per minute, making it ideal for life sciences, diagnostics, and analytical instruments.
Key Features
- Combines a high-precision syringe pump with a multi-port distribution valve
- Ultra-low carryover with zero dead volume design
- Near-pulseless continuous flow with high microstepping resolution
- Handles multiple fluids with one compact OEM device
- Easy to control via Serial or I²C interface
- Swiss-made quality for demanding laboratory and industrial applications
Applications
- High-precision sampling and dosing
- Automated dilution of samples or reagents
- Sequential injection in microfluidic systems
- Bubble-free priming and efficient rinsing
- Generating near-pulseless continuous flow
Also available in other OEM versions: SPM+ (high-volume), SPM HD (high-precision), and SPM+ HD (high-volume, high-precision). If you are looking for a standalone instrument, see the LSPone laboratory microdispenser.
Content
1x SPM syringe pump with distribution valve
1x Compatible syringe
Specifications
Syringes specifications
Choose the syringe size best suited to your application:
| Syringe volume |
Min. flow rate |
Max. flow rate |
Min. dosing volume |
| 50 µL |
0.5 µL/min |
1 500 µL/min |
0.1 µL |
| 100 µL |
1 µL/min |
3 000 µL/min |
0.2 µL |
| 250 µL |
2.5 µL/min |
8 000 µL/min |
0.5 µL |
| 500 µL |
5 µL/min |
15 000 µL/min |
1 µL |
| 1000 µL |
10 µL/min |
30 000 µL/min |
2 µL |
Warning: the low-volume SPM Microdispenser is only compatible with 50 to 1000 µL syringes. For 2.5 mL and 5 mL, please check out the SPM+ (high-volume). Low-volume and high-volume syringes cannot be interchanged.
Valve specifications
| Valve configuration |
Zero dead-volume multi-port distribution with angular encoder
Ultra-low carryover |
| Tube port fittings |
Standard 1/4-28 UNF, flat-bottom |
| Channel diameter |
0.5 mm, 0.8 mm, or 1 mm |
| Valve body material |
PCTFE |
| Valve plug material |
PTFE or UHMW-PE |
| Max. pressure |
7 bar (102 psi) |
Pump specifications
| Accuracy |
< 1% deviation from expected value at full stroke |
| Plunger travel |
30 mm with 96 000 micro-steps |
| Resolution |
Selectable 3 000 / 24 000 steps |
| Drive |
Screw drive with linear encoder |
| Full stroke time |
2 – 3000 seconds |
| Syringe material* |
Borosilicate glass |
| Plunger material |
PTFE |
General specifications
| Syringe size |
50 to 1000 µL |
| Operating temperature |
15 – 45 °C |
| Operating humidity |
20 – 80%, non-condensing |
| Max pressure |
5 bar (72 psi) |
| Interfaces |
USB mini, 9-PIN D-SUB |
| Communication |
Serial, I²C (other options on request) |
| Power |
18–24 VDC, 2.2 A peak, 40 W |
| Dimensions |
199.7 × 126.3 × 50.5 mm |
| Weight |
1.5 kg |
Documentation
OEM brochure
Operating manual
SPM datasheet
Maintenance guide
