iStir OH Prime Digital Overhead Stirrer Series
iStir OH 8P – 10 L 8 Ncm
£275.00
Sale price
£275.00
Regular price
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iStir OH Prime Digital Overhead Stirrer Series
£275.00
Sale price
£275.00
Regular price
iStir OH Prime Digital Overhead Stirrer Series
Four high-performance models for laboratory mixing up to 40 litres and 30,000 mPa·s
The iStir OH Prime Series comprises four powerful digital overhead stirrers designed for precise, dependable mixing of liquids ranging from low-viscosity solutions to materials with viscosities up to 30,000 mPa·s.
Each model combines a maintenance-free brushless DC motor with microprocessor control, digital speed and timer settings, reversible rotation and intelligent load compensation. Select from four torque and capacity levels to match the requirements of your application.
Four models for different mixing demands
Choose from capacities of 10, 20, 25 or 40 litres, with maximum torque ratings ranging from 8 to 40 Ncm.
Choose from capacities of 10, 20, 25 or 40 litres, with maximum torque ratings ranging from 8 to 40 Ncm.
Available Models
| Model | Capacity | Torque | Speed Range | Maximum Viscosity |
|---|---|---|---|---|
| iStir OH 8P | 10 litres | 8 Ncm | 50–2,000 RPM | 4,000 mPa·s |
| iStir OH 15P | 20 litres | 15 Ncm | 50–1,000 RPM | 8,000 mPa·s |
| iStir OH 20P | 25 litres | 20 Ncm | 90–2,000 RPM | 10,000 mPa·s |
| iStir OH 40P | 40 litres | 40 Ncm | 50–1,000 RPM | 30,000 mPa·s |
Key Features
- Four models covering mixing capacities from 10 to 40 litres
- Maximum torque options from 8 to 40 Ncm
- Suitable for viscosities up to 30,000 mPa·s
- Quiet, maintenance-free brushless DC motor
- Microprocessor-controlled speed and operating time
- Large digital display for easy viewing of critical parameters
- Speed adjustment in fine increments for precise control
- Clockwise and counter-clockwise rotation
- Timer from 1 minute to 99 hours and 59 minutes
- Continuous operating mode for extended mixing
- Smart Control helps maintain stirring as viscosity changes
- Power-interruption recovery mode
- Last-run memory for convenient repeat operation
- Overload, overcurrent and overtemperature protection
- Push-through shaft design for different vessel heights
- IP54-rated stirrer head
- Compact design helps conserve laboratory bench space
Smart Control for Changing Viscosity
The intelligent control system continuously monitors the load on the motor and adjusts the drive to help maintain effective stirring when the viscosity of the sample changes. This is particularly useful for dissolving, formulation and reaction processes where the sample may become thicker during mixing.
Reversible Mixing
Clockwise and counter-clockwise rotation enables the operator to change the direction of flow within the vessel. Direction reversal can help disrupt persistent circulation patterns, redistribute settled material and improve mixing uniformity.
Advanced Safety Protection
Built-in overload, overcurrent and overtemperature protection helps safeguard the motor, electronics and operator. If the safe operating limits are exceeded, the control system intervenes to protect the instrument.
Typical Applications
- Dissolving solids and powders into liquids
- Mixing liquids of different densities or viscosities
- Pharmaceutical and biotechnology formulation
- Cosmetics, creams, lotions and personal-care products
- Paint, ink, coating and adhesive development
- Chemical synthesis and reaction preparation
- Food and beverage product development
- Quality-control and pilot-scale laboratory work
Common Technical Specifications
| Motor type | Brushless DC motor |
| Display | Digital LED display |
| Timer | 1 minute to 99 hours 59 minutes, or continuous |
| Direction of rotation | Reversible clockwise/counter-clockwise |
| Chuck range | Approximately 0.7–10 mm, depending on selected chuck |
| Protection class | IP54 |
| Safety protection | Overload, overcurrent and overtemperature |
| Power supply | 100–240 V AC, 50/60 Hz via low-voltage adapter |
Configuration Required
The stirrer head is supplied as the selected model. The following components must be selected separately to produce a complete operating system:
- Stand: plate stand or heavy-duty H-stand
- Boss-head clamp: selected to suit the chosen stand
- Chuck: keyed, keyless or collet chuck
- Impeller: selected according to vessel, viscosity and required flow pattern
Important ordering information
The stand, boss-head clamp, chuck and impeller are not included with the stirrer head and must be ordered separately.
The stand, boss-head clamp, chuck and impeller are not included with the stirrer head and must be ordered separately.
Configuration advice from Auckland Scientific
Please provide your vessel dimensions, working volume, approximate viscosity and required mixing action. We can help select the appropriate Prime model, stand, chuck and impeller for your application.
Please provide your vessel dimensions, working volume, approximate viscosity and required mixing action. We can help select the appropriate Prime model, stand, chuck and impeller for your application.
Capacities are based on water or comparable low-viscosity liquids. Actual performance depends on the sample, vessel and impeller. Product images may show optional accessories that are not included. Specifications may be updated without notice.