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Sigma Recapper for Screw Cap Tubes

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Fully automated Screw Cap (De)Capper

Cap, decap, and recap an entire rack of tubes in less than 30 seconds

With the Sigma Screw Cap Recapper from AYFS3G, researchers can cap and decap entire racks of 96-, 48-, and 24-well format screw cap tubes in less than 30 seconds. Designed with efficiency in mind, the Sigma Recapper can be operated as a stand-alone instrument or integrated into a fully automated laboratory environment.

By replacing manual labor with automation, researchers can focus on what matters most: doing effective research. The Sigma is ideal for high throughput workflows and is available in three different models: the Sigma96 for (de)capping 96-well format racks, the Sigma48 for (de)capping 48-well format racks, and the Sigma24 for (de)capping 24-well format racks.

The Sigma Screw Cap Recapper can be custom made to work with a range of tube brands. Equipped with an interface (API) for integration, the Sigma can work in sync with larger robotic systems like liquid handlers.

Product features


Can be custom made to be compatible with a wide range of labware from different manufactures and has three different editions.


It can cap, decap and recap in less than 30 seconds, which is ideal for high throughput workflows.


The Sigma96 is equipped with an interface (API) for integration into a fully automated laboratory environment.


Thanks to its easy-to-use interface with a graphical touch screen, users can select the type of labware they are using, without any troubles.

  • Rack compatibility 96-, 48-, or 24-well format racks (ANSI/SLAS standard)
  • Cycle time Less than 30 seconds per rack
  • Size 18.9" x 19.21" x 18.5"
  • Voltage 115 - 230V

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