Stirrers

OHAUS Achiever 5000 overhead stirrers are designed for powerful, precise stirring with safety and simplicity across all applications. The sealed design carries an IP54 rating and ensures safe mixing performance even in demanding conditions, while a keyless chuck and software-controlled speed ramping give easy setup and safe stirring that protects both sample and user. A brushless motor with torque-compensation technology delivers accurate, controlled stirring of viscous liquids with quiet operation, and users can select from five models offering up to 200 Ncm of torque and up to 100 L of volume capacity, with a lock button preventing accidental speed changes and overload-sensing technology that shuts off stirring before an overload condition occurs.

Key features:

• IP54-rated sealed design for safe operation in demanding conditions

• Keyless chuck for tool-free, one-handed shaft changes

• Brushless motor with torque compensation for viscous liquids up to 100,000 mPa·s

• Five models with up to 200 Ncm torque and up to 100 L capacity

• Lock button and overload-sensing shutdown for sample and user protection

Typical applications:

• Mixing and stirring of viscous liquids in research and industry

• Everyday laboratory stirring requiring reliable, quiet operation

• Applications demanding a wide range of torque and volume capacity

OHAUS Guardian 7000 hotplate stirrers are durable digital hotplates and stirrers designed with outstanding safety features and superior heating and mixing performance. The chemical-resistant SmartHousing has an innovative, easy-to-clean design that channels spills away from internal components and the angled glass control panel, while the bright LCD display shows intuitive icons plus temperature, speed and time settings for monitoring performance from across the lab. SmartPresence and SmartLink technologies automatically shut off the heater when no one is detected after a defined time-out period, SafetyHeat uses two independent early-detection controls to stop heating before an overtemperature condition occurs, and a powerful motor with software-controlled ramp rate delivers precise stirring from 60 to 1,600 rpm across capacities up to 20 L.

Key features:

• SmartPresence/SmartLink automatic shut-off when no user is detected

• SafetyHeat dual independent overtemperature protection

• Stirring range from 60 to 1,600 rpm with secure magnetic coupling

• Ceramic or aluminum plate options up to 20 L capacity

• Bright LCD display with temperature, speed and time settings

Typical applications:

• General heating and stirring in research and industrial laboratories

• Viscous-sample mixing requiring secure magnetic coupling

• Laboratories prioritizing unattended-operation safety

The Next-Generation OHAUS Guardian 5000 hotplate stirrers are engineered for safety and versatility across research, academic and industrial settings, offering powerful heating and mixing with premium hardware and software for diverse, reliable use. Heating models reach up to 550°C with three temperature-control modes for quick heating or precise heating without overshoot, and users can select from five models with three plate sizes (ceramic or ceramic-coated aluminum, 20-22 L capacity). Signature SafetyHeat and SmartHeat features combine with the new Run Dry Protection system, Time Run mode and an optional Splash Shield for complete safety, while the evolved SmartRate system supports heating and stirring from fast and intensive to soft and precise, and an intuitive LCD interface with an RS232 port supports remote control or data logging.

Key features:

• Heating up to 550°C with three temperature-control modes

• Five models across three plate sizes, up to 22 L capacity

• SafetyHeat, SmartHeat and Run Dry Protection for complete safety

• SmartRate system for fast-intensive to soft-precise stirring

• RS232 port for remote control and data logging

Typical applications:

• Research, academic and industrial heating and stirring

• Applications requiring precise heating without temperature overshoot

• Remote-controlled or data-logged laboratory processes

OHAUS Guardian 3000 hotplate stirrers are designed for economical heating and stirring in all laboratory settings, offering industry-leading safety at affordable prices for general laboratory use. The bright LCD display includes easy-to-read temperature and speed settings, intuitive icons and a prominent hot-top indicator that lights up when the heater is above 40°C, with users choosing from three plate sizes to suit their application. SafetyHeat uses two independent early-detection controls to monitor electronics and stop heating before overheating occurs, while a rugged metal housing with a spill-resistant design and a smooth, chemical-resistant ceramic top ensure long life and easy clean-up, and all models can be used with an optional temperature probe for precise sample-temperature control.

Key features:

• Three plate sizes with heating and stirring up to 15 L capacity

• SafetyHeat dual independent overtemperature protection

• Hot-top indicator light above 40°C

• Rugged, spill-resistant metal housing with chemical-resistant ceramic top

• Optional temperature probe for precise sample-temperature control

Typical applications:

• Economical general-purpose heating and stirring

• Everyday laboratory work requiring reliable safety features

• Applications needing precise sample-temperature monitoring via probe

OHAUS Guardian 2000 hotplates and stirrers are rugged, reliable analog units for general-purpose heating and stirring, ideal for education and other laboratory environments requiring affordable, everyday fast heating and reliable stirring up to 15 L. All three sizes offer simple knob control for adjusting heating and stirring functions, with a durable housing including a built-in support-rod holder that accepts an optional support rod, and stirring models include PTFE-coated stir bars. Powerful stirring and fast heating are delivered at an economical price, with safe heating up to 500°C, a rugged metal housing with a spill-resistant design and smooth, chemical-resistant ceramic top for easy clean-up, and a prominent hot-top indicator light that illuminates above 40°C to keep users safe.

Key features:

• Heating up to 500°C, stirring up to 15 L capacity

• Simple knob control across three plate sizes

• Hot-top indicator light above 40°C

• Spill-resistant metal housing with chemical-resistant ceramic top

• Includes PTFE-coated stir bars on stirring models

Typical applications:

• Educational laboratories needing affordable heating and stirring

• Everyday general-purpose lab heating tasks

• Applications requiring simple, reliable analog control