QPix 400 Series Microbial Colony Pickers

QPix Microbial Colony Pickers

Automated microbial screening system capable of picking up to 3000 colonies per hour

Automated microbial screening system capable of picking up to 3,000 colonies per hour

The QPix® Microbial Colony Picker leverages best-in-class colony picking technology to alleviate bottlenecks and quickly, accurately, and efficiently screen through massive genetic libraries. The easy-to-use, intuitive software guides users through setting up colony picking runs where precision robotics pick the right colonies every time.. 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.

Data is automatically recorded into the machine’s database, providing users with a complete audit trail and sample tracking, ensuring that no data is ever lost. Our modular, scalable series of colony pickers allows groups of all sizes to increase the accuracy and throughput of their workflow, while still allowing for future throughput growth.

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Identify colonies with a desired phenotype

The QPix 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.

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Select colonies efficiently

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

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Maintain Sterility

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


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Organism-specific pins

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

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Multiple imaging modes

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

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Plating and Spreading

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

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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.

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Agar sensing

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

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Scalable automation options*

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

*Price, time to deliver and specifications will vary based on mutually agreed technical requirements. Solution requirements may cause adjustment to standard performance.

Automate your workflow with the QPix colony picker

Colony picking is an essential step in biological research as scientists often isolate microbial clones in order to mass produce DNA or proteins to be used in a variety of applications downstream. Traditionally, colony picking is performed manually using sterile pipette tips or inoculation loops, which are usually slow, labor-intensive, and time-consuming. Not only will automated colony pickers make the entire process quicker, but the results are more consistent and reliable.

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*Price, time to deliver, and specifications will vary based on mutually agreed technical requirements. Solution requirements may cause adjustment to standard performance.
Custom solutions are subject to Molecular Devices Custom Products Purchase Terms available at

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Applications of QPix 400 Series Microbial Colony Pickers

Specifications & Options of QPix 400 Series Microbial Colony Pickers

Resources of QPix 400 Series Microbial Colony Pickers

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