Whether you're mixing nutrient solutions, processing extracts, or handling high-viscosity media in a commercial grow operation or lab setting, the SCILOGEX SCI40-S Overhead LED Digital Stirrer delivers the precision, power, and reliability you need. With a 40-liter capacity, brushless DC motor, and a wide speed range of 50–2200 RPM, this stirrer is built to perform consistently — batch after batch.
Why SCILOGEX SCI40-S
The SCI40-S stands apart from standard overhead stirrers through its combination of industrial-grade engineering and user-friendly design. Its brushless DC motor eliminates the maintenance headaches of brush-based motors, while the LED digital display gives you real-time speed monitoring at a glance. Unlike many competitors, the SCI40-S features automatic power-resume functionality — if power is interrupted, it picks back up at your preset speed without manual intervention.
Growers and lab technicians choose the SCI40-S because it handles viscous media up to 50,000 mPas with a maximum torque of 60 Ncm, making it suitable for demanding applications that would stall lesser stirrers. The through-shaft design also allows easy impeller position adjustment without disassembly, saving time during setup and changeovers.
Key Benefits
- Wide Speed Range (50–2200 RPM) – Handles everything from gentle blending to high-speed mixing with precise analog control.
- Brushless DC Motor – Long service life with zero brush maintenance, reducing downtime and operating costs.
- LED Digital Display – Real-time speed and torque monitoring for accurate, repeatable results.
- High Torque Output (60 Ncm) – Powers through viscous media up to 50,000 mPas without stalling.
- Over-Torque & Anti-Stall Protection – Automatically stops the motor under overload conditions to protect both the unit and your batch.
- Power-Resume Function – Automatically restores preset speed after a power interruption — no manual reset needed.
- Through-Shaft Design – Allows quick, tool-free impeller position adjustments mid-run.
- cTUVus Certified (UL & CSA) – Meets North American safety standards for lab and commercial use.
- 2-Year Warranty – Backed by SCILOGEX's manufacturer warranty for peace of mind.
- Universal Voltage (100–220V, 50/60 Hz) – Compatible with US and international power supplies.
Use Cases
- Nutrient Solution Preparation – Mix large-volume hydroponic or fertigation solutions evenly and efficiently.
- Extract Processing – Stir ethanol, solvent, or water-based extracts during winterization, dilution, or blending stages.
- Viscous Media Mixing – Handle thick slurries, gels, or high-viscosity compounds that standard magnetic stirrers can't manage.
- Commercial Lab Applications – Ideal for quality control, R&D, and production environments requiring consistent, repeatable mixing.
- Emulsification & Homogenization – Combine immiscible liquids or create stable emulsions for formulation work.
- Fermentation & Bioprocessing – Maintain consistent agitation in fermentation vessels or bioreactor setups.
Directions for Use
- Mount the SCI40-S to a compatible lab stand (sold separately) using the included clamp.
- Insert the stainless steel cross stirrer (included, Part# 1890007) into the chuck and tighten securely.
- Adjust the impeller height using the through-shaft design to position it correctly in your vessel.
- Connect to a 100–220V power source using the included US plug.
- Power on the unit and set your desired speed using the analog speed control dial.
- Monitor actual speed on the LED display and adjust as needed.
- In the event of a power interruption, the unit will automatically resume at the preset speed when power is restored.
- If the over-torque protection activates (LED indicator), reduce load or speed before restarting.
What Growers Are Saying
"Handles our nutrient mixing batches without breaking a sweat. The auto-resume feature alone has saved us hours of babysitting the unit."
— Marcus T., Commercial Grower
"We use this in our extraction lab daily. Consistent speed, easy to clean, and the LED display makes monitoring simple. Solid piece of equipment."
— Sarah P., Lab Technician
"Replaced a much more expensive unit with the SCI40-S and haven't looked back. The torque on this thing is impressive for the price point."
— Daniel R., Greenhouse Operations Manager
Frequently Asked Questions
Does the SCI40-S come with a stand?
No — the stand is sold separately. The unit includes the stainless steel cross stirrer (Part# 1890007) and a US plug, but you will need a compatible lab stand and clamp for mounting.
What is the maximum viscosity this stirrer can handle?
The SCI40-S is rated for media up to 50,000 mPas viscosity with a maximum torque of 60 Ncm, making it suitable for thick slurries, gels, and high-viscosity solutions.
Is this unit compatible with international power supplies?
Yes. The SCI40-S operates on 100–220V at 50/60 Hz, making it compatible with both US and international power standards. Note that the included plug is a US-style plug.
What stirrer attachments are compatible?
The chuck accepts stirrer rods with diameters from 0.5–10mm, and pass-through stirrer rods are also accepted. The included stainless steel cross stirrer (Part# 1890007) is a great starting point for most applications.
How should I store the SCI40-S when not in use?
Store in a dry environment within the permissible ambient temperature range of 5–40°C and humidity below 80% RH. Keep the chuck clean and free of residue to maintain chuck diameter accuracy.
What happens if the motor overloads?
The over-torque protection circuit automatically stops the motor and activates the LED overload indicator. Simply reduce the load or lower the speed setting before restarting. The anti-stall safety circuit also provides a safe stop function under stall conditions.
the unit does not come with a stand.
SCILOGEX SCI40-S (40L) LED Digital Overhead Stirrer 50-2200rpm
SCILOGEX SCI40-S Overhead LED Digital Stirrer, 40L Capacity, 100-220V 50/60Hz, US Plug (including steel cross-stirrer Part# 1890007, stand sold separately)
Product Features
- A wide range of speed from 50 to 2200rpm
- Brushless DC motor for long life and maintenance free
- Analog speed controls displayed on the LED display for monitoring actual speed
- High torque for viscous medium stirring
- Over torque protection automatically stops the motor
- Safety circuits allow for safe stop function in anti-stall or overload condition
- A through-shaft design allows for easy adjustment of the impeller position
- In the event of power loss, the stirrer will resume stirring at the preset speed when the power returns
- Pass through stirrer rods accepted
- cTUVus approved for UL and CSA
- 2 YEAR WARRANTY
Product Specifications
| Maximum stirring capacity | 40L |
|---|---|
| Maximum torque | 60Ncm |
| Viscosity maximum | 50000mPas |
| Speed range | 50-2200rpm |
| Speed display accuracy | ± 50rpm |
| Speed display resolution | ± 10rpm |
| Chuck diameter range | 0.5-10mm |
| Dimensions | 3.3W x 8.7H x 7.3D in (83W x.220H x 186D mm) |
| Motor rating input | 120W |
| Motor rating output | 100W |
| Weight | 5.5lbs |
| Motor type | brushless DC motor |
| Voltage/Power | 100-220V, 50/60 Hz/ 130W |
| Speed/Torque display | LED |
| Overload protection display | LED lights |
| Protection class | IP42 |
| Permissible ambient temperature and humidity | 5-40°C, 80%RH |
Additional Resources and Information
Downloadable PDFs
SCILOGEX Overhead
Stirrers brochure
SCILOGEX Overhead
Stirrers Software
SCILOGEX SCI20/40-S LED Digital Overhead Stirrer.mp4 from SCILOGEX on Vimeo.