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Description
IKA RW 20 Digital Overhead StirrerOverview The bestseller in the laboratory: With digital display Robust, slimline, ergonomic design Technical improvements on the trusted RW 20 series designs With constant power drive Two speed ranges for universal use from 60 2,000 rpm Push through agitator shafts (only when stationary) For stirring quantities of up to 15 l (H2O) Key Attributes Maximum volume (L): 20 Minimum Volume (L): N A Speed max (rpm): 2000 Speed min (rpm): 60 Max temperature
Overview
The bestseller in the laboratory:
- With digital display
- Robust, slimline, ergonomic design
- Technical improvements on the trusted RW 20 series designs
- With constant power-drive
- Two speed ranges for universal use from 60 - 2,000 rpm
- Push-through agitator shafts (only when stationary)
- For stirring quantities of up to 15 l (H2O)
Key Attributes
| Maximum volume (L): | 20 |
| Minimum Volume (L): | N/A |
| Speed max (rpm): | 2000 |
| Speed min (rpm): | 60 |
| Max temperature (◦C): | N/A |
| Plate: | N/A |
| Plate material: | N/A |
| Torque max (Ncm): | 150 |
| Controls: | Digital |
| Timer: | No |
| Programmable: | No |
| Reverse rotation: | No |
| Warranty (years): | 2 |
| Weight (lbs): | 6.8 |
| Dimensions Width (in): | 3.5 |
| Dimensions Height (in): | 11.6 |
| Dimensions Length (in): | 8.4 |
Manufacturer Specifications
| Stirring quantity max. per stirring position (H2O) | 20 l |
| Motor rating input | 85 W |
| Motor rating output | 35 W |
| Speed display | LED |
| Speed range | 60 - 2000 rpm |
| Viscosity max. | 10000 mPas |
| Output max. at stirring shaft | 26 W |
| Permissible ON time | 100 % |
| Torque max. at stirring shaft | 150 Ncm |
| Torque max. at stirring shaft at 60 1/min (overload) | 300 Ncm |
| Torque max. at stirring shaft at 100 1/min | 150 Ncm |
| Torque max. at stirring shaft at 1.000 1/min | 24 Ncm |
| Speed range I (50 Hz) | 60 - 500 rpm |
| Speed range II (50 Hz) | 240 - 2000 rpm |
| Speed range I (60 Hz) | 72 - 600 rpm |
| Speed range II (60 Hz) | 288 - 2400 rpm |
| Speed control | stepless |
| Setting accuracy speed | 1 ±rpm |
| deviation of speed measurement | 30 ±rpm |
| Stirring element fastening | chuck |
| Temperature display | no |
| Chuck range min. diameter | 0.5 mm |
| Chuck range max. diameter | 10 mm |
| Hollow shaft, inner diameter | 10.5 mm |
| Hollow shaft (push-through - when stopped) | yes |
| Fastening on stand | extension arm |
| Extension arm diameter | 13 mm |
| Extension arm length | 160 mm |
| Torque display | no |
| Nominal torque | 1.5 Nm |
| Timer | no |
| Dimensions (W x H x D) | 88 x 294 x 212 mm |
| Weight | 3.1 kg |
| Permissible ambient temperature | 5 - 40 °C |
| Permissible relative humidity | 80 % |
| Protection class according to DIN EN 60529 | IP 20 |
| RS 232 interface | no |
| USB interface | no |
| Analog output | no |
| Voltage | 220 - 240 / 100 - 115 V |
| Frequency | 50/60 Hz |
| Power input | 87 W |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2079 reviews
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Product Reviews
★★★★★ 4
Works well.
Color: 2-Speed Rechargeable Set with Base
Close to 5 stars. Only minor complaint is somewhat shorter battery life then expected. But since it is rechargeable, not a big deal. Like the adjustable grinder and the clear container so you can see how much it has.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Great salt and pepper set!
Color: 2-Speed Rechargeable Set with Base
Great salt and pepper set! I love that it has a light that makes it easier to see how much is coming out. Very easy to use, easy to fill, nice selection of grind sizes. It is also nice that it has a base to hold it because there is a very small amount of salt that comes off the bottom so it keeps it from going on the counter while not in use - it's not leaking, just leftover residue from the grind you have just finished.
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Reviewed in the United States on April 16, 2025
★★★★★ 1
They’re nice… if they work…
Color: 2-Speed Rechargeable Set with Base
I ordered four of these grinders and two of them broke down while a third never started up. I am honestly disappointed in the failure rate of these otherwise nice grinders. If only one grinder in a two-pack failed, I would’ve just taken it on the chin and moved on. But three out of four total is unacceptable.
I like the way they look, and the grind speed and settings are nice. But there’s a serious durability problem they need to fix.
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Reviewed in the United States on August 24, 2025
★★★★★ 5
Excellent quality.
Color: 2-Speed Rechargeable Set with Base
These are great! They operate by pressing the top surface. Best i've had, and I've had a few! Very happy.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Highly recommend!
Color: 2-Speed Rechargeable Set with Base
This electric mill set is great! The mills stay charged longer than I ever expected, and the operation is consistently very good. Since purchasing these four months ago, I’ve only recharged them once…and our family uses them nearly every day. Having the activator button on the top is the best…no accidental messes like the ones with activators on the side that can be inadvertently touched when grasping the mill. Having a stand to catch the small grind remnants also keeps your counters clean. They are a perfect height—large enough to hold significant product and small enough to not tip over. I also purchased a set for my parents, and they love them as well. Great product!
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Reviewed in the United States on April 7, 2025