iStir HP 550 Prime Digital Hotplate Stirrer

The iStir HP 550 Prime is an advanced digital hotplate magnetic stirrer developed for demanding laboratory heating and mixing applications.

Its powerful servo DC motor provides consistent stirring across a speed range of 200 to 2,200 RPM, while the nano-crystal glass ceramic top plate delivers controlled heating from ambient temperature up to 550°C.

With a maximum stirring capacity of 20 litres, intelligent heating modes, pulse operation and comprehensive safety functions, the iStir HP 550 Prime is suitable for chemical synthesis, formulation, sample preparation and extended reaction procedures.

• Maximum stirring capacity of 20 litres for demanding laboratory procedures
• Temperature range from ambient to 550°C
• Variable stirring speed from 200 to 2,200 RPM
• Speed adjustable in precise 10 RPM increments
• Powerful servo DC motor maintains consistent speed under changing loads
• Nano-crystal glass ceramic top plate provides excellent chemical and thermal resistance
• Large digital display alternately shows speed, time and actual/set temperature
• Microprocessor-controlled operation for accurate and repeatable performance
• Timer from 1 to 999 minutes with an additional continuous operating mode
• Programmable pulse mode supports alternating stirring for more effective mixing
• PT1000 temperature probe monitors the sample temperature directly
• Safe-temperature cut-off at 575°C provides additional protection
• Hot-surface warning alerts the operator when the plate remains hot
• Error indication helps identify operating or sensor problems
• Keypad lock helps prevent accidental changes during operation
• Automatic restart mode can resume operation following a power interruption
• Compact, chemically resistant body saves valuable laboratory bench space

The large 180 × 180 mm working surface is manufactured from nano-crystal glass ceramic. This material provides excellent resistance to heat, thermal shock and aggressive laboratory chemicals.

Its smooth, non-porous surface is easy to clean and provides a stable platform for common laboratory vessels during high-temperature heating and stirring procedures.

The supplied PT1000 probe measures the temperature within the vessel, providing more meaningful control than plate-temperature measurement alone.

The digital display alternates between the set temperature and the actual measured temperature, enabling the operator to monitor heating progress clearly. Multiple heating modes allow the instrument to be adapted to different vessel sizes, sample types and thermal requirements.

The servo DC motor maintains consistent stirring speed when the vessel load or sample viscosity changes. Digital adjustment from 200 to 2,200 RPM allows the instrument to support everything from gentle sample circulation to rapid dissolution and reaction mixing.

Programmable pulse mode alternates the stirring action to improve circulation and promote more homogeneous mixing. The last operating settings can be retained, supporting efficient and repeatable laboratory workflows.

• High-temperature chemical reactions and synthesis
• Heating and mixing solutions up to 20 litres
• Pharmaceutical formulation and process development
• Sample digestion and extraction
• Dissolving powders, reagents and chemical compounds
• Materials-science and industrial research
• Quality-control and analytical laboratories
• Environmental sample preparation
• University and research laboratories

• iStir HP 550 Prime digital hotplate stirrer
• High-strength magnetic stir bar, 25 × 8 mm
• PT1000 temperature probe
• Support stand with boss-head clamp
• UK power cable
• Operating documentation

Images are for illustrative purposes. Product appearance and specifications may differ slightly as a result of continuing product development.