This OEM sequential microdispenser is a high-precision dosing device for automated microfluidic applications. Its high-accuracy dosing and low-pulse flow stream capabilities make it the perfect tool for multiple liquid handling in the range of millilitres down to nanolitres.
With its integrated zero dead volume selection valve, handles multiple fluids in one pump with high cleaning efficiency and low carryover. Easy to integrate, the SPM sequential microdispenser is the ideal companion for your instruments and laboratory projects.
Includes the SPM pump and the syringe only. USB cable, power supply and fittings have to be ordered separately.
General
The SPM Microdispenser is an OEM syringe pump for high-precision dosing in automated microfluidic applications. Its low-pulse flow stream capabilities make it the perfect tool for multiple liquid handling in the range of millilitres down to nanolitres.
Designed for microfluidics, the integrated zero dead volume selection valve is optimized for handling multiple fluids with very low carryover volume. The SPM can be easily controlled and monitored using serial communication protocols or I2C.
The SPM is an OEM device: it can be tailored to your needs upon request.
| SPM model |
Syringe volume |
Min. flow rate |
Max. flow rate |
Min. dosing volume |
| Low-volume syringes |
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 high-volume SPM Microdispenser. Low-volume and high-volume syringes cannot be interchanged.
Advantages
The SPM is used for high-precision sampling and dosing, to aspirate/dispense liquids, to dilute samples or reagents, for sequential injection or just to get a near-pulseless continuous flow rate. It can be easily integrated into prototypes or production systems.
- Combines a high-precision syringe pump and a distribution valve: control multiple liquids with one pump
- Optimized flow paths to limit contamination and maximize cleanability
- Excellent biochemical compatibility
- Easy to use and integrate (various external control options)
- Swiss quality
Dead, internal and carryover volumes: The unique valve geometry limits the carryover volume down to 1.5 μL (purple) whereas standard products exhibit up to 50 μL. The exceptionally small channel diameter of 0.5 mm reduces the internal volume down to only 4 μL (blue + purple). There is no dead volume.
High dilution ratio: When rinsing, diluting, or switching liquid, our minimal carryover volume (purple) leads to a maximal dilution ratio with the diluent (blue).
Bubble-free priming: Our unique valve design expels the air from the syringe and valve immediately, eliminating the traditional cumbersome priming procedure.
Fast liquid switching: The zero dead volume selection valve allows to rapidly switch liquid with an ultra-low carryover.
Content
1x SPM syringe pump with distribution valve
Specifications
Valve specifications
| Valve configuration |
Zero dead-volume multi-port distribution with angular encoder
Low carryover volume |
| 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) |
Detailed valves specifications
| Valve Type |
Distribution |
| Tube port fittings |
1/4-28 UNF, flat-bottom |
| Number of ports |
6 |
8 |
10 |
12 |
| Dead Volume |
None |
| Number of channels inside rotary part |
1 |
| Materials |
PCTFE/PTFE* |
| Channel Size |
0.5 mm* |
| Internal Volume |
2.5 µL |
2.5 µL |
3.5 µL |
3.5 µL |
| Carryover Volume |
1.5 µL |
1.5 µL |
1.7 µL |
1.7 µL |
*For the specifications of the alternative channel dimensions and materials, please contact us.
Syringe pump specifications
| Accuracy |
< 1% deviation from the expected value at full stroke |
| Plunger travel |
30 mm with 96000 micro-steps for nearly pulseless flow |
| Plunger resolution |
Selectable 3000 steps (standard) / 24000 steps (high) |
| Plunger drive |
Screw drive with linear encoder for step loss detection |
| Time for a full stroke |
2 - 3000 seconds |
| Syringe material* |
Borosilicate glass |
| Plunger material |
PTFE |
*SPM can be purchased without a syringe, but only Advanced Microfluidics syringes are compatible with this device.
Syringes specifications
The SPM should be used with Advanced Microfluidics syringes. Compatibility with other syringes is not guaranteed. Low-volume and high-volume syringes cannot be interchanged.
| SPM model |
Volume |
Min. flow rate |
Max. flow rate |
Min. dosing volume |
| Low-volume syringes |
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 |
General specifications
| SPM model |
Low-volume syringes |
| Syringe size |
50 to 1000 µL |
| Operating temperature |
15-45°C (59-113°F) |
| Operating humidity |
20-80%, non-condensing |
| Max pressure |
5 bar (72 psi) |
| Communication interface |
USB mini, 9-PIN D-SUB |
| Communication type |
Serial, I2C (other upon request) |
| Power |
18-24 VDC, 2.2 A peak, 40 W (18 VDC optimized for battery use) |
| Dimensions |
199.7 x 126.3 x 50.5 mm |
| Weight |
1.5 kg |
Documentation
? SPM brochure
? SPM operating manual
? SPM low volume datasheet - 50 to 1000 µL syringes
? Maintenance guide
STEP file available upon request.
