Medical Beads



TN Americas Holdings, Inc. supplies precision-made, custom-produced 2mm to 8mm plastic beads to medical diagnostic and biotechnology firms worldwide. Our plastic beads are used for bead-based immunoassays in diagnostic, research and development, protein purification applications. We also manufacture mating plastic injection molded components in our class 8 clean room.

  • Macro Solid Phase Plastic Beads for Enzyme Immunoassay and Radioimmunoassay
  • Macro Magnetic Solid Phase Polymer Beads for EIA, RIA, and DNA PCR
  • Components for Diagnostic Systems

Exacting Quality and Visual Inspection Systems

We understand the critical importance of lot traceability and product verification necessary for the medical diagnostic and biotechnology industries. We document and certification for all materials and manufacturing lots.

Manufactured to Your Custom Specification

Assay beads are custom tailored to your exact specifications, with sizes as small as 2.0mm and with medical - grade surface finishes from 10-280 Ra (other surface finishes are available). Beads are molded from polystyrene and other materials available per your requirements. We can supply you with small quantity product samples to aid you in selecting the bead characteristics needed for your specific application. We are continually researching and developing refinements in surface finishes and additional materials for diagnostic application.

Flexible Lot Size Capabilities

Our production capabilities are flexible. We are able to supply the quantity of beads that meets your requirements, from 25,000 to 2,300,000 piece batches.

Availability of Pre-shipment Samples

In order to verify that beads conform to your specified parameters, we can preship samples for your approval in the quantities that you request. Our email is

Please note that the material information provided on our website is for informational purposes only. The properties listed per product type are typical and can vary based on suppliers of raw materials and customer specific needs. Please contact customer service for verification prior to ordering. Price and delivery may be subject to change based on specific requirements.

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