SMTP4-250 μL is an OEM pipetting module for reaction setup, using air displacement with a nominal capacity of 250 μL. It can be integrated into automated analyzers and laboratory workstations to add reagents to reaction tubes or microplates as part of an instrument-controlled sequence.
The product uses disposable tips and supports automatic tip ejection. The integrator supplies drive electronics, positioning axes and process control. Specify a separate sensing arrangement if liquid-level, blockage or tip-status monitoring is required.
Typical Applications:
Reaction setup, Reagent addition, OEM integration
| Product name | SMTP4 250 μL air-displacement pipetting pump |
|---|---|
| Model | SMTP4-250μL |
| Product series | SMTP4 air-displacement pipetting pump |
| Pipetting method | Air displacement |
| Nominal capacity | 250μL |
| Drive design | Four-wire bipolar stepper motor with lead screw |
| Motor pulse rate | 1~3000 pps |
| Volumetric resolution | 0.125 μL/step |
| Tip configuration | Customized to application requirements |
| Tip loading force | 30 N |
| Full-stroke step count | 2000 steps |
| Tip ejection step count | 550 steps |
| Tip ejection motor thrust | >120 N at 5 r/s |
| Operating noise | <60 dBA; indoor use only |
| Operating environment | 15°C to 40°C; 20% to 95% RH at 40°C; non-condensing |
| Storage environment | -20°C to 65°C; 30% to 85% RH; non-condensing |
| Fluid temperature | 15°C to 40°C |
| Power requirements | 24VDC |
| Overall dimensions | 28 × 28 × 161 mm |
| Weight | 300 g |
SMTP4-250 μL is an OEM pipetting module for reaction setup, using air displacement with a nominal capacity of 250 μL. It can be integrated into automated analyzers and laboratory workstations to add reagents to reaction tubes or microplates as part of an instrument-controlled sequence.
Aspirate reagents in the required sequence and add them to the designated reaction tube or well. Define the source, target volume, order and tip-change point for each step, coordinating axis positioning. Set aspiration and dispense parameters for each reagent's properties.
Reaction setup requires checking the volume delivered into the well, tip residue and liquid retained on vessel walls. Extra blowout or aspirate/dispense mixing requires host programming and available travel. Reagent addition does not establish that mixing is complete; assess mixing as a separate workflow step.
Match tip loading, pipetting and ejection paths to the tip part number, rack position and vessel layout. Automatic tip ejection still requires coordinated instrument motion. Confirm sealing, loading and ejection forces, and mechanical travel for the selected tips.
Provide minimum, routine and maximum working volumes, liquids, tip part numbers, vessels and target cycle time, then define drive and sensing arrangements. Select against the model's resolution and usable capacity and validate accuracy and repeatability under actual conditions. Drive resolution is not a minimum reliable transfer volume or an accuracy specification.
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The datasheet for this product has not been uploaded yet.
250 μL is nominal capacity; 0.125 μL/step is drive resolution, not minimum reliable volume or accuracy. Validate each reaction step's working volume against tip capacity, method allowances and the intended liquid.
Share the volume range, tip specification, liquid-level and clog-detection requirements, communication interface, installation space, and control method. The Foreach engineering team can help confirm a suitable configuration.