Preddator Overview

The world’s most flexible, non-contact bulk reagent dispenser

The Preddator is a low-volume, non-contact, bulk reagent dispenser that was designed and developed in close collaboration with research scientists from two major pharmaceutical companies. An ideal replacement for the BioRptr.

The Preddator was originally designed as part of the scientists’ brief for a new reagent dispenser that could overcome 3 key issues:

  • Reduce tip blocking and improve assay data
  • Reduce the long-term costs of consumables
  • Reduce assay volumes, without compromising on accuracy and precision

The Preddator achieved these goals and systems were placed and endorsed by pharmaceutical scientists worldwide. The Preddator now offers an unparalleled set of features and benefits to users of bulk reagent dispensers.

Features and benefits at a glance

Simple fluid pathway

Reduces dead volumes (~65ul) and tip blockages

Auto-clean function

Reduces tip blockages

Dispensing from 10nl volumes

Miniaturises assays

Precise and consistent dispensing (0.7% CV at 500nl)

Improves assay data (independently verified)

Drop-on-drop capability

Repeatable dispensing positioning, to within 20um

Dynamic fluid range

Capably handles DMSO, proteins, crystallography, oils, matrigels, surfactants, cells and beads

Limitless patterns

Dispenses into 96-, 384-, 1536- and 3456-well microplates, evaporation wells, non-standard plates, microarrays and slides


Fills a 1536-well plate in under 10 seconds (on-the-fly)


Suitable for a wide range of applications, handling up to 4 different reagents simultaneously

Small footprint

Ideal for today’s laboratories (footprint of just 750 square cm)

Low on-going running costs

Simple low volume fluid pathway, easy to maintain and clean

Open platform

Ideal for integration into a robotic platform



Questions? – Ask Dr Phil Wells. Whether you are interested in testing out the Preddator, or are struggling to find a bulk reagent dispenser with the capabilities you need, our applications scientist Dr Phil Wells is here to help.