Benchmark™ OS20L Overhead Stirrer, 20L
Reference:
Manufacturer: Benchmark Scientific
Benchmark’s Overhead Stirrers feature high torque and advanced digital microprocessor control for smooth mixing of low and medium viscosity samples. Speed and run time are accurately set and monitored on the LCD screen. Both the 20L and 40L capacity models are supplied with a 4 arm stainless steel propeller, additional steel and Teflon accessories are available. A feed-through chuck holds accessory shafts firmly in place and is easily tightened and loosened without tools. The overhead stirrers are protected from damage by sensors that shut down operation in the case of high viscosity or obstruction, while a splash cover protects the connection mechanism from potential corrosion. Unlike most mixers, the Benchmark series is also supplied with a support stand and mounting hardware. The stirrer easily and securely attaches to the stand for compatibility with a variety of vessels, up to 24 inches high.
In stock
Customize your product
Payment Providers
- LCD control panel
- Includes complete stand assembly
- Compact and quiet
- Digital accuracy and convenience
An overhead stirrer mixes beakers, flasks and reactor vessels where a magnetic stir bar runs out of strength, such as larger batches or thicker liquids. The OS-20L handles up to 20L of water-like liquid and the OS-40L up to 40L, with up to 60Ncm of torque on the larger model.
Speed is adjustable from 30 to 2200 rpm, so one unit can blend gently at low speed or mix hard at high speed. The brushless DC motor has no brushes to wear out. For thick samples choose the OS-40L, rated to 50000 mPas; the OS-20L is rated to 10000 mPas.
The 100-240V input runs on standard outlets in most regions. Note that the stirrer is CE certified but not UL or CSA listed, so check your facility's electrical approval requirements before ordering.
| Model | OS-20L / OS-40L |
| Mixing Capacity (H2O) | 20L / 40L |
| Maximum Torque | 40Ncm / 60Ncm |
| Input Power | 60W / 120W |
| Output Power | 50W / 100W |
| Net Weight (Mixer) | 2.6kg / 2.8kg |
| Maximum Viscosity | 10000mPas / 50000mPas |
| Speed Range | 30-2200 rpm |
| Motor Type | DC brushless motor |
| Chuck Diameter Range | 0.5-10mm |
| Exterior Dims.: (WxDxH) | 7.3 x 3.3 x 8.7 in. / 18.6 x 8.3 x 22.0 cm. |
| Protection Mode | IP42 |
| Ambient Operating Range | 5-40°C |
| Electrical | 100-240AC 50-60Hz |
| Certification | CE certified, not UL or CSA listed |
| Warranty | 2 years |
Reviews
What customers say about our store
Quick and reliable service provided! - Scheduled an appointment with Wayne the other day for a Dry Ice order pick up, he will go over and above for his customers to make sure we are well taken care of. Even with a broken foot !
Thanks again Wayne!
You've got my business!
Wayne there has an excellent store, he has everything, really nice stuff at good prices, ultimately very fair compared to others. I will certainly be going back for everything I need. Got some things from a different place and spent 50% more, just go see Wayne first, he seems like he wants to help you out more than sell you out the door.
WOW
I'd like to first start with this business witch is great ,location was easy to find with good directions, the services wayne offers are a excellent industry best, I had items shipped and also picked up at business store front both very easy and quick
Also like to add the quality of the equipment sold as anything with logo extractor king is from my experience also again an industry best!
And last owner and…
Great service. Definitely recommend them to all
Great buisness very quality items and prompt phone and online services, backed by the owner who stands behind the product!! AAA service all around.
Reviews from Google Maps
