ALab™ StepMate Stepper
Product Detail
The ALab™ StepMate Stepper is a positive-displacement repetitive dispenser. With disposable polypropylene dispenser tips from 0.5 to 50 mL it dispenses 10 µL to 5 mL per step, with up to 48 steps in succession from one filling.
Find the required dispensing volume in the table, set the volume selection dial (settings 1 to 5), and insert a suitable dispenser tip, which is held by the durable tip stop lever. Slide the filling lever upwards to fill the tip, then dispense step by step, following the maximum number of steps for the dial setting.
The stepper is slim, light and robust, and optimized for smooth dispensing of even the smallest volumes. Positive-displacement tips suit viscous or foaming solutions, volatile liquids and long series of repetitive dispensing; they are made without soft lubricants or other additives. Discard the first and last dispensed volume for best precision.
Why choose the StepMate
Specifications General — StepMate
| Parameter | Specification |
|---|---|
| Brand | ALab™ by ACS Material |
| Model | StepMate |
| Product type | Stepper (repetitive dispenser) |
| Principle | Positive displacement |
| Dispensing volume per step | 10 µL to 5 mL (depends on tip and dial setting) |
| Volume selection | Dial, settings 1 to 5 |
| Steps per filling | 48 / 23 / 15 / 11 / 8 at dial settings 1 / 2 / 3 / 4 / 5 |
| Compatible tips | Disposable dispenser tips, 0.5, 1.25, 2.5, 5, 12.5, 25 and 50 mL |
| Tip materials | Piston PE-HD, cylinder PP; no soft lubricants or other additives |
| Tip retention | Dispenser tip stop lever |
Dispensing volume per step by tip and dial setting
| Tip volume (mL) | Dial 1 (µL) | Dial 2 (µL) | Dial 3 (µL) | Dial 4 (µL) | Dial 5 (µL) | Systematic error (±%) | Random error (≤%) |
|---|---|---|---|---|---|---|---|
| 0.50 | 10 | 20 | 30 | 40 | 50 | 0.8 | 0.7 |
| 1.25 | 25 | 50 | 75 | 100 | 125 | 0.8 | 0.5 |
| 2.50 | 50 | 100 | 150 | 200 | 250 | 0.8 | 0.4 |
| 5.00 | 100 | 200 | 300 | 400 | 500 | 0.4 | 0.3 |
| 12.50 | 250 | 500 | 750 | 1000 | 1250 | 0.3 | 0.3 |
| 25.00 | 500 | 1000 | 1500 | 2000 | 2500 | 0.2 | 0.3 |
| 50.00 | 1000 | 2000 | 3000 | 4000 | 5000 | 0.2 | 0.2 |
| Steps per filling | 48 | 23 | 15 | 11 | 8 |
Systematic and random error per the published specification for each tip. Discard the first and last dispensed volume for best precision.
Accessories dispenser tips
| Accessory | Description | Image |
|---|---|---|
| Dispenser tip, 0.5 mL Cat. No. 17900032 · SKU ALSTPMC1 | 0.5 mL dispenser tip, piston PE-HD, cylinder PP; pack of 5. |  |
| Dispenser tip, 1.25 mL Cat. No. 17900033 · SKU ALSTPMC2 | 1.25 mL dispenser tip, piston PE-HD, cylinder PP; pack of 5. | |
| Dispenser tip, 2.5 mL Cat. No. 17900034 · SKU ALSTPMC3 | 2.5 mL dispenser tip, piston PE-HD, cylinder PP; pack of 5. | |
| Dispenser tip, 5 mL Cat. No. 17900035 · SKU ALSTPMC4 | 5 mL dispenser tip, piston PE-HD, cylinder PP; pack of 5. | |
| Dispenser tip, 12.5 mL Cat. No. 17900036 · SKU ALSTPMC5 | 12.5 mL dispenser tip, piston PE-HD, cylinder PP; pack of 5. | |
| Dispenser tip, 25 mL Cat. No. 17900037 · SKU ALSTPMC6 | 25 mL dispenser tip, piston PE-HD, cylinder PP; pack of 2 with 1 adapter. | |
| Dispenser tip, 50 mL Cat. No. 17900038 · SKU ALSTPMC7 | 50 mL dispenser tip, piston PE-HD, cylinder PP; pack of 2 with 1 adapter. | |
Image shown for reference; one representative tip image is used for all sizes.
Order codes SKU
| Model / configuration | SKU # |
|---|---|
| StepMate Stepper (dispenser tips listed separately) | ALSTPM00 |
Parent SKU: ALSTPM0F. Order SKU: ALSTPM00.
Package contents
| Supplied with the instrument | Qty |
|---|---|
| StepMate Stepper | 1 |
Dispenser tips are listed under Accessories with their catalog numbers and SKUs.
Where it fits
Frequently asked questions
What volumes can the StepMate dispense?
10 µL to 5 mL per step, depending on the dispenser tip (0.5 to 50 mL) and the dial setting (1 to 5).
How many steps per filling?
48, 23, 15, 11 or 8 steps at dial settings 1, 2, 3, 4 or 5.
Which tips does it use?
Disposable positive-displacement dispenser tips in seven sizes: 0.5, 1.25, 2.5, 5, 12.5, 25 and 50 mL, with a PE-HD piston and a PP cylinder.
How accurate is it?
Systematic error ±0.2% to ±0.8% and random error ≤0.2% to ≤0.7%, depending on the tip; see the volume table.
Which liquids is it suited to?
Viscous or foaming solutions, volatile liquids and applications that need repetitive dispensing of volumes in long series.
How are the tips packed?
0.5 to 12.5 mL tips: packs of 5. 25 and 50 mL tips: packs of 2 with 1 adapter.