AELAB | Laboratory Equipment | Dispenser/Stepper
Dispenser/Stepper instruments provide precise, repeatable liquid handling for laboratories and industrial applications. In environments like chemical labs, pharmaceuticals, and food production, even the smallest fluid deviation can affect results. These devices enable accurate dispensing in controlled steps—ideal for serial dilutions, aliquoting reagents, and automated workflows—improving both productivity and precision.
A Dispenser/Stepper is a liquid handling device that allows users to dispense fixed or incremental volumes repeatedly with accuracy. Available in manual or electronic formats, these tools are essential in laboratories and production environments for applications requiring consistent dosing. They support a wide range of liquids—from aqueous solutions to viscous or volatile compounds—and are crucial for reproducible analytical and industrial workflows.
| Specification | Details |
|---|---|
| Volume Range | 1 µL to 50 mL (model dependent) |
| Step Increment | As low as 0.1 µL for fine dosing |
| Liquid Compatibility | Acids, bases, solvents, viscous and volatile liquids |
| Accuracy/Precision | ±0.5–1.0% depending on volume |
| Autoclavable Parts | Available in high-quality models for sterile work |
| Material Composition | PTFE, borosilicate glass, polypropylene |
| Operation Mode | Manual, electronic, or fully automated |
| Feature | Dispenser/Stepper | Standard Pipette |
|---|---|---|
| Dispensing Mode | Repetitive, stepped dispensing | Single or multichannel dispensing |
| Efficiency | High for multiple doses | Moderate |
| Automation Capability | Electronic or robotic options available | Mostly manual |
| Use Case | Ideal for serial dilutions and aliquoting | Precision liquid transfer |
| Volume Range | Wide, programmable | Fixed or adjustable manually |
Q: Can I use the same dispenser/stepper for different liquids?
A: Yes, but always flush and clean thoroughly between liquids to prevent cross-contamination and ensure accuracy.
Q: What is the difference between a dispenser and a stepper?
A: A dispenser delivers a single liquid dose per actuation, while a stepper performs repetitive dispensing in defined steps without refilling.
Q: Are dispensers/steppers suitable for viscous fluids?
A: Yes, provided your model supports high-viscosity handling using reinforced pistons and wider nozzles.
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