Waverly® ST1R™ Overhead Stirrer Mixer
Introducing the all-new ST1R™ Overhead Stirrer from Waverly®
We built one model to do it all — and do it better. The ST1R™ is our "super model": maximum torque, top-tier capacity, premium brushless motor for ultra-long life, and sleek digital controls — all in one beautifully engineered package. By perfecting a single design, we streamline production and pass the savings on to you, offering pro-level performance at a surprisingly competitive price.
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Waverly® ST1R™ Overhead Stirrer Mixer
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Waverly® ST1R™ Overhead Stirrer
The new overhead stirrer from Waverly® Scientific Products is a universal overhead stirrer ideal for many different applications. Perfect for stirring, mixing, and homogenizing liquids and solids, including high-viscosity substances.
Waverly® designed this stirrer for the modern laboratory. It is compact, lightweight, and features a sleek design with a sharp LED digital display covered by a tempered glass screen—like an iPhone.
We've consolidated our designs into one model only, the ST1R™, which happens to be the top model with the best specifications. By consolidating into one model, we can leverage economies of scale to offer the highest performance at a price that competes with any other brand in its class.
- Drive motor: premium maintenance-free brushless DC motor
- Max stir volume: 40L (H₂O)
- Speed range: 50 to 2000 rpm
- LED display shows both actual and set speed
- Speed automatically adjusts to viscosity changes in real time via microprocessor technology
- Through-shaft design allows shaft length adjustment and easy vessel changes between batches
- Overload protection system activates if torque exceeds stirrer limits
- Safety circuits with auto cut-off for added protection
ST1R Overhead Stirrer Specifications
| Max. stirring quantity (H₂O) | 40L |
| Motor type | Premium brushless DC motor |
| Electrical | 100-240V, 50/60 Hz |
| Power | 145W |
| Speed range (under nominal load) | 0/50-2000 rpm |
| Speed increment | Stepless, 10 rpm |
| Speed accuracy | ±1 rpm |
| Max torque (at stirrer shaft) | 40 N·cm |
| Max viscosity | 50,000 mPas |
| Speed display | LED |
| Protection class (DIN EN 60529) | IP 42 |
| Protection at overload | Yes |
| Motor protection | Yes |
| Over temperature protection | Yes |
| Chuck range diameter | 0.5–10mm |
| Permissible ambient temperature & humidity | 5–40°C, 80% |
| Dimensions (W × H × D) | 2.8 × 6.8 × 9.5 in (71 × 174 × 240 mm) |
| Weight | 5.5 lbs (2.3 kg) |