OHAUS overhead stirrer

OHAUS overhead stirrer

The powerful stirring systems in the Achiever 5000 series are specially designed to mix liquids of different viscosities safely and precisely. Whether in everyday laboratory work or in demanding research projects: Compared to similar models, these devices offer a remarkable combination of performance, ease of use and durability. They have proven themselves in many industries, including pharmaceuticals, cosmetics and chemicals, thanks to their brushless motor, robust design and variable speed ranges.

Performance features and technology

The versatile device deck enables flexible adaptation to a wide range of applications - from dissolving fine powder mixtures to emulsifying viscous media. The lockable speed controller, together with motor overload detection, ensures consistent stirring and increases safety at every stage of the mixing process. Other important data and features:

- Speed range depending on model: 6 to 400 rpm or 30 to 2000 rpm
- Max. Capacity: up to 100 litres (depending on model)
- Maximum torque: from 20 Ncm to 200 Ncm
- High tolerance for viscosities: up to 100,000 mPa s
- Sealed aluminium housing with protection class IP54
- LED display with timer function (1 minute to 99 hours, 59 minutes)
- Quick change and clamping of the shaft without tools

The quick-release chuck is a key equipment feature that allows uncomplicated setup. The brushless motor with torque equalisation technology, which works quietly and consistently even in high-speed applications, is particularly outstanding. Digital controls and a lock button to prevent accidental changes to the settings also minimise the risk of process errors. The built-in motor overload detection ensures a high level of process reliability, switching off the stirrer in good time before the device or the sample material could be damaged.

Certifications and standards

All models in the Achiever 5000 series fulfil important safety requirements for professional use in laboratories and industry. They have an IP54 protection rating, which protects them against splash water and dust particles. In addition, they offer proven safety certification (cNemkous), which complies with international guidelines and guarantees reliable protection in different environmental conditions. Thanks to the robust design and resistant materials, these agitator systems are also suitable for long operating times in demanding conditions.

Application examples

- Production of cosmetic emulsions (e.g. creams, lotions or gels)
- Homogenisation and dispersion of paints, varnishes or pigment mixtures in the paint and coating industry
- Dissolving solids in the pharmaceutical and biotechnology industries, for example in the production of active ingredients or when preparing culture media
- Mixing highly viscous substances in construction chemistry, such as adhesives, resins, levelling compounds or cement slurries

The wide range of accessories - from different agitator shafts to rotor attachments - allows use in many variable scenarios. Thanks to the precise speed control and stable torque, physical properties such as viscosity or homogeneity can be reliably controlled and documented.

FAQ

How long can you stir without interruption?

Each model is designed for continuous operation for up to several hours. The integrated overload protection switches the appliance off in good time at dangerous operating values.

Which liquids are suitable for this stirrer?

From aqueous solutions to very viscous media such as pasty preparations: Thanks to the high viscosity range of up to 100,000 mPa s, almost any medium can be processed.

Is regular calibration necessary

The speed accuracy of ±1 rpm is maintained without the need for frequent calibrations. For particularly sensitive processes, an annual check may be advisable.

How to change the stirring tool

Simply release the lock button and open the quick-release chuck. The shaft or stirrer can be changed in just a few seconds without any tools.

Can the speed be changed during mixing?

Yes, you can also adjust the speed during operation using the digital control knob. A soft-start function ensures that no sudden load changes occur.

Conclusion

The Achiever 5000 series is characterised by high performance, freedom from wear and a strong focus on user safety. Anyone who has to cope with robust mixing tasks in the laboratory or in production will find a combination of state-of-the-art motor technology, practice-orientated design and comprehensive overload protection. The user-friendly chuck and high-torque drive make processes more efficient and reliably protect sample materials. To summarise, the models in this series offer a wide range of applications that meet the highest professional demands - a key reason why so many professionals rely on this overhead stirrer for demanding stirring processes.