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MP-SM stepper dispenser is designed based on the positive displacement principle and engineered for the precise pipetting of challenging liquids, such as those with high viscosity, high density, or high vapor pressure. Unique 48-step dispensing capability delivers exceptional accuracy and operational convenience, making it an ideal solution for complex liquid handling applications.
High-viscosity liquids: glycerol, oils, serum, surfactants, etc
High-density liquids: concentrated acids, concentrated alkalis, salt solutions, etc
High-vapor-pressure liquids: organic solvents (acetone, ethanol, diethyl ether, etc.)
Foaming liquids: protein-containing solutions, detergents, etc
MP-SM utilizes positive-displacement technology, where the piston makes direct contact with the liquid (eliminating the air gap) to ensure accurate pipetting of challenging liquids.
Supports 48 dispensing steps, allowing multiple dispenses from a single fill, significantly boosts efficiency in high-volume sample processing while reducing consumable waste.
Compatible with seven sizes of disposable polypropylene syringes (ranging from 0.5 mL to 50 mL), it covers a single-dispense volume range of 10 μL to 5 mL.
Lightweight, ergonomic design and a durable syringe plunger insertion mechanism, it enables the entire operation to be performed with one hand.
No periodic calibration or lubrication requirements, and has no easily worn parts, drastically reducing long-term maintenance costs.

| Model | MP-SM |
|---|---|
| Dispensing Principle | Positive Displacement |
| Compatible Syringe Size | 0.5/ 1.25/ 2.5/ 5.0/ 12.5/ 25.0/ 50.0 mL (7 sizes available) |
| Dispensing Volume Range | 10−5000 μL (depending on syringe size) |
| Max. Dispensing Step | 48 steps per syringe fill |
| Step Setting | 5 pre-set steps (48/ 23/ 15/ 11/ 8), adjustable via selector wheel |
| Operation | One-handed operation with built-in tip insertion lever |
| Syringe Material | Polypropylene (disposable, single-use) |
| Syringe Size | Image | Steps → | 48 | 23 | 15 | 11 | 8 | Description |
|---|---|---|---|---|---|---|---|---|
| 0.5 mL |
| Volume/step | 10 μL | 20 μL | 30 μL | 40 μL | 50 μL | 5 pcs/packing |
| 1.25 mL |
| Volume/step | 25 μL | 50 μL | 75 μL | 100 μL | 125 μL | 5 pcs/packing |
| 2.5 mL |
| Volume/step | 50 μL | 100 μL | 150 μL | 200 μL | 250 μL | 5 pcs/packing |
| 5.0 mL |
| Volume/step | 100 μL | 200 μL | 300 μL | 400 μL | 500 μL | 5 pcs/packing |
| 12.5 mL |
| Volume/step | 250 μL | 500 μL | 750 μL | 1000 μL | 1250 μL | 5 pcs/packing |
| 25.0 mL |
| Volume/step | 500 μL | 1000 μL | 1500 μL | 2000 μL | 2500 μL | 2 pcs/packing with 1 pc adapter |
| 50.0 mL |
| Volume/step | 1000 μL | 2000 μL | 3000 μL | 4000 μL | 5000 μL | 2 pcs/packing with 1 pc adapter |




