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Description
IKA RW 28 Digital Overhead StirrerOverview Powerful, mechanically controlled laboratory stirrer designed for highly viscous applications for quantities up to 80 l (H2O). It is suitable for intensive mixing for use in laboratories and pilot plants. The stirrer comes equipped with a protection for overheating of the motor by means of self locking temperature limiter. Additionally, to secure bowls, a stirring shaft protection and clamping fixture are optionally available. Digital speed
Overview
Powerful, mechanically controlled laboratory stirrer designed for highly viscous applications for quantities up to 80 l (H2O). It is suitable for intensive mixing for use in laboratories and pilot plants. The stirrer comes equipped with a protection for overheating of the motor by means of self-locking temperature limiter. Additionally, to secure bowls, a stirring shaft protection and clamping fixture are optionally available.
- Digital speed display
- Infinitely adjustable speed from 60 to 1400 rpm in two speed ranges
- Push-through agitator shafts
- Overload protection
- Error code display
- Robust, ergonomic design
- Quiet operation
- With constant power-drive
Key Attributes
| Maximum volume (L): | 80 |
| Minimum Volume (L): | N/A |
| Speed max (rpm): | 1,400 |
| Speed min (rpm): | 60 |
| Max temperature (◦C): | N/A |
| Plate: | N/A |
| Plate material: | N/A |
| Torque max (Ncm): | 900 |
| Controls: | Digital |
| Timer: | No |
| Programmable: | No |
| Reverse rotation: | No |
| Warranty (years): | 2 |
| Weight (lbs): | 16.5 |
| Dimensions Width (in): | 4.8 |
| Dimensions Height (in): | 14.3 |
| Dimensions Length (in): | 9.9 |
Manufacturer Specifications
| Stirring quantity max. per stirring position (H2O) | 80 l |
| Motor rating input | 220 W |
| Motor rating output | 94 W |
| Speed display | LED |
| Speed range | 60 - 1400 rpm |
| Viscosity max. | 50000 mPas |
| Output max. at stirring shaft | 90 W |
| Permissible ON time | 100 % |
| Torque max. at stirring shaft | 900 Ncm |
| Torque max. at stirring shaft at 60 1/min (overload) | 1144 Ncm |
| Torque max. at stirring shaft at 100 1/min | 900 Ncm |
| Torque max. at stirring shaft at 1.000 1/min | 86 Ncm |
| torque I max. | 900 Ncm |
| torque II max. | 300 Ncm |
| Speed range I (50 Hz) | 60 - 400 rpm |
| Speed range II (50 Hz) | 240 - 1400 rpm |
| Speed range I (60 Hz) | 72 - 480 rpm |
| Speed range II (60 Hz) | 288 - 1680 rpm |
| Speed control | stepless |
| Setting accuracy speed | 1 ±rpm |
| deviation of speed measurement | 10 ±rpm |
| Stirring element fastening | chuck |
| Chuck range min. diameter | 1 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 | 16 mm |
| Extension arm length | 145 mm |
| Torque display | no |
| Nominal torque | 9 Nm |
| housing material | alu-cast coating / thermoplastic polymer |
| clean room qualified | no |
| explosion proofed | no |
| Noise without element | 62.5 dB(A) |
| Dimensions (W x H x D) | 123 x 364 x 252 mm |
| Weight | 7.5 kg |
| Permissible ambient temperature | 5 - 40 °C |
| Permissible relative humidity | 80 % |
| Protection class according to DIN EN 60529 | IP 40 |
| RS 232 interface | no |
| USB interface | no |
| Analog output | no |
| Voltage | 220 - 240 / 115 / 100 V |
| Frequency | 50/60 Hz |
| Power input | 200 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
4.9 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Well made
Size: Large, Color: Black (6-pairs), Number of Items: 6
These are the only socks that my 12 year old Grandson will wear. He's very picky. LOL
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
★★★★★ 5
Comfort and durability
Size: Large, Color: White (6-pairs), Number of Items: 6
Socks work really good. I have very rough and dry feet that tear up my bed sheets. They hold up to my destructive feet. They are soft and comfy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026