Achiever™ 5000 Overhead Stirrers

Category Overhead Stirrers
Manufacturer Ohaus
Country of manufacture the United States of America

OHAUS Achiever™ 5000 Overhead Stirrers are designed for powerful, precise stirring, safety and simplicity in all applications. The sealed design has an IP54 rating and ensures safe mixing performance even in the most demanding applications. The keyless chuck and software-controlled speed ramping provide easy setup and safe stirring to protect the sample and user. Select from five models with up to 200 Ncm torque and up to 100 L volume capacity.


  • Powerful mixing and constant speed is assured with the brushless motor and torque compensation technology - delivering accurate, controlled stirring of viscous liquids with quiet operation.
  • Simplify set up with the Keyless Chuck - no tools required. Change shafts quickly and easily with one handed operation. This unique design will save time and effort for everyone in the lab.
  • Designed for safety. The lock button prevents accidental speed changes and the motor’s overload sensing technology simply shuts off stirring before an overload condition occurs to protect the sample.
  • Compact and easy to use. Simple knob control combined with the bright digital display allows for precise setting and monitoring. Customize for your application with over 12 accessories.
Key Attributes
Maximum volume (L): 25, 40 or 100L
Minimum Volume (L): N/A
Speed max (rpm): 1300 or 2000 (varies by model)
Speed min (rpm): 6 or 30 (varies by model)
Max temperature (◦C): N/A
Plate:  N/A
Plate material: N/A
Torque max (Ncm): 20, 40, 60, 100, or 200
Controls: Digital
Timer: Yes
Programmable: No
Reverse rotation: No
Warranty (years): 5
Weight (lbs): 5
Manufacturer Specifications
Model e-A51ST020 e-A51ST040 e-A51ST060 e-A51ST100 e-A51ST200
Speed Range 30 rpm – 2000 rpm 30 rpm – 1300 rpm 6 rpm – 400 rpm; 30 rpm – 2000 rpm
Capacity 25 L 40 L 100 L
Sample Viscosity (mPa s) maximum 10,000 maximum 25,000 maximum 50,000 maximum 70,000 maximum 100,000
Torque (max) 20 Ncm 40 Ncm 60 Ncm 100 Ncm 200 Ncm
Chuck Range (Diameter) 1-13 mm
Shaft Pass-Through (Diameter) up to 8.5 mm
Control Digital
Dimensions 11.2 in x 9.3 in x 3.5 in  12.4 in x 9.3 in x 3.5 in
Display LED Display
Function Stirring
IP rating IP 54
Net Weight 9 lb (4.1 kg) 10.1 lb (4.6 kg)
Power 115 / 230 VAC
Power Consumption 190 W
Safety Certification cNemkous
Speed Accuracy ±1 rpm
Speed Range 30 rpm – 2,000 rpm 30 rpm – 1,300 rpm 6 rpm – 400 rpm ; 30 rpm – 2,000 rpm
Working Environment 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

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Achiever™ 5000 Overhead Stirrers Accessories