ALab™ OS-T Plus Series Overhead Stirrer
Product Detail
The ALab™ OS-T Plus Series comprises three LCD digital timed overhead stirrers: the OS-T40-Plus, OS-T60-Plus and OS-T400-Plus, for 30, 50 and 100 L of water and viscosities up to 150,000 mPa·s. A brushless DC motor holds the set speed by adjusting the torque automatically as the sample viscosity changes.
The LCD shows speed, torque, timing and temperature, plus icons for the safety lock, temperature sensor, buzzer, operating mode, rotation direction and PC connection. A knob adjusts speed, time and rotation direction, and the timer runs up to 99 h 59 min.
A paddle "through-the-top" design makes container replacement easy. An external PT1000 sensor inlet displays the sample temperature, torque and temperature can be calibrated, and RS485, Type-C and USB interfaces connect to a PC. There is no external transformer, which makes the stirrer safer to use.
Why choose the OS-T Plus
Specifications General — OS-T40-Plus, OS-T60-Plus, OS-T400-Plus
| Parameter | Specification |
|---|---|
| Brand | ALab™ by ACS Material |
| Series | OS-T Plus (OS-T40-Plus, OS-T60-Plus, OS-T400-Plus) |
| Product type | LCD digital timed overhead stirrer |
| Max. stirring volume [H₂O] | 30 L / 50 L / 100 L (see the model table) |
| Speed range | 50 to 2200 rpm (OS-T40-Plus, OS-T60-Plus); A gear 10 to 400 rpm, B gear 50 to 2000 rpm (OS-T400-Plus) |
| Speed control accuracy | ±3 rpm |
| Time settings range | 0 min to 99 h 59 min |
| Max. torque | 40 / 60 / 400 N·cm |
| Max. viscosity | 10,000 / 50,000 / 150,000 mPa·s |
| Motor type | Brushless DC motor |
| Speed display | LCD |
| Torque display | LCD |
| Forward and reverse rotation | OS-T40-Plus and OS-T60-Plus: forward, reverse, intermittent mixing; OS-T400-Plus: — |
| Temperature display accuracy | 0.1°C |
| External temperature sensor | PT1000 (accuracy ±0.2°C) |
| Overload protection display | LCD |
| Chuck clamp range diameter | 0.5 to 10 mm |
| Data interface | RS485, Type-C, USB |
| Voltage, frequency | 100 to 240 V, 50/60 Hz |
| Motor input / output, power, dimensions, weight | See the model table |
| Permissible ambient temperature and humidity | 5 to 40°C, 80% RH |
| Protection class | IP42 |
The three models OS-T40-Plus, OS-T60-Plus, OS-T400-Plus
| Model | Max. volume [H₂O] | Speed range | Max. torque | Max. viscosity | Motor input / output | Power | Dimensions [W × H × D] | Weight | ACS Cat. No. |
|---|---|---|---|---|---|---|---|---|---|
| OS-T40-Plus | 30 L | 50 to 2200 rpm | 40 N·cm | 10,000 mPa·s | 60 W / 50 W | 70 W | 90 × 240 × 227 mm | 3.5 kg | ALOST40P |
| OS-T60-Plus | 50 L | 50 to 2200 rpm | 60 N·cm | 50,000 mPa·s | 110 W / 100 W | 120 W | 90 × 240 × 227 mm | 3.5 kg | ALOST60P |
| OS-T400-Plus | 100 L | A: 10 to 400 rpm; B: 50 to 2000 rpm | 400 N·cm | 150,000 mPa·s | 180 W / 170 W | 300 W | 101 × 270 × 264 mm | 5.2 kg | ALOT400P |
Order codes one ACS Cat. No. per configuration
| Model / configuration | ACS Cat. No. |
|---|---|
| OS-T40-Plus, 30 L max., 40 N·cm | ALOST40P |
| OS-T60-Plus, 50 L max., 60 N·cm | ALOST60P |
| OS-T400-Plus, 100 L max., 400 N·cm | ALOT400P |
Parent ACS Cat. No.: ALOST. Select the configuration in the order menu.
Where it fits
Frequently asked questions
What is the difference between the three models?
Torque, volume and viscosity: 40 N·cm, 30 L, 10,000 mPa·s (OS-T40-Plus); 60 N·cm, 50 L, 50,000 mPa·s (OS-T60-Plus); 400 N·cm, 100 L, 150,000 mPa·s (OS-T400-Plus).
Does the speed stay constant as viscosity changes?
Yes. The stirrer adjusts the torque automatically to changes in sample viscosity and maintains the set speed, with ±3 rpm speed control accuracy.
Can it reverse direction?
The OS-T40-Plus and OS-T60-Plus provide forward, reverse and intermittent mixing. The OS-T400-Plus has two speed gears: A, 10 to 400 rpm; B, 50 to 2000 rpm.
Can it measure temperature?
Yes. An external PT1000 sensor (accuracy ±0.2°C) plugs into the inlet and the LCD shows the sample temperature.
What shaft diameters fit the chuck?
0.5 to 10 mm.