FortéBio QPix™ 400 series

FortéBio QPix™ 400 series

Microbial screening colony pickers with sample tracking and plate handling

Identify colonies with a desired phenotype

The QPix 400 series of colony pickers support a wide variety of microorganisms and multiple selection modalities, including fluorescence intensity, blue/white selection, size and proximity, and zone of inhibition.

Select colonies efficiently 

A suite of organism-specific pins and agar sensor ensure efficient picking. The system delivers a picking efficiency of > 98%, allowing you to walk away with confidence.

Maintain Sterility

A host of sterility features are available including a UV light for sanitising the interior of the instrument, as well as pin washing and halogen drying of pins.


The QPix 400 Series Microbial Colony Pickers combine intelligent image analysis with precise automation for fast and efficient screening of large libraries. Capable of picking up to 3000 colonies per hour, it will streamline your workflow. In addition to microbial screening, the system automates several sample preparation and plate handling processes such as transfer of bacterial liquid culture and plating on agar. With a variety of data tracking and assay tools, the QPix Software streamlines the control and management of complex and iterative processes.

The QPix 420 system provides all the application and performance benefits of the QPix 400 series in a smaller, benchtop format. For higher throughput applications, the QPix 450 system handles up to 210 destination plates in three stacker lanes. For the additional sample plating feature, the QPix 460 system gives you the greatest flexibility in application and experimental design.

Organism-specific pins 

Different shape and picking area pins maximise efficiency for E. coli, phage, and yeast. Plating-specific pins ensure uniform distribution of liquid culture onto agar.

Multiple imaging modes

Colonies can be picked based on pre-specified parameters using white light, fluorescence, and colour. The use of filters enables applications such as blue-white colony screening.

Plating and Spreading 

Automated plating and streaking of 96 samples can be done in 30 minutes, providing greater walk-away time.

Replication, grid and hit picking

Automated plate handling and tracking streamlines downstream assay and sample management. QPix colony pickers provides flexible plate replication, gridding, and hit-picking capabilities.

Agar sensing

Ultrasonic agar height sensor detects differences in height resulting from variable pouring volume, enabling maximum picking efficiency.

Scalable automation options* 

The QPix HT model is a robot compatible solution with a modular deck. FortéBio’s Advanced Workflow Engineering Solutions team can tailor a colony picker with a variety of custom services.


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