Benchmark™ OS-20L and OS40L Overhead Stirrers

• LCD control panel

• Includes compete stand assembly and 4 arm propeller

• Compact and quiet

• Digital accuracy and control

Benchmark's Overhead Stirrers feature advanced LCD controls for accurate display of both speed and run time. The stirrers include a support stand complete with mounting hardware. The mixer is easily attached at the desired height for compatibility with a wide range of vessels (up to 24 inches tall). The stand and 4-arm propeller are included. A wide range of optional propellers and paddles are available separately. Each of these mixing accessories is available in stainless steel or inert Teflon. All accessories are easily attached to the mixer without tools or hardware. To guard against potential corrosion when using hazardous or corrosive solutions, a cover fits over the connection mechanism to protect the unit and improve the long-term safety and reliability of the instrument. 

Specifications 
 

Model	OS-20L	OS-40L
Mixing Capacity (H20)	20 L	40 L
Maximum Torque	40 Ncm	60 Ncm
Input Power	60 W	120 W
Output Power	50 W	100 W
Net Weight (Mixer)	2.6 kg	2.8 kg
Maximum Viscosity	10,000 mPas	50,000 mPas
Speed Range	30 to 2,200 rpm
Motor Type	DC brushless motor
Chuck Diameter Range	0.5 to 10 mm
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 to 40°C
Electrical	100-240 AC, 50-60 Hz
Warranty	2 years