ALPHA Plastic

Screw Tubes

Screw-cap tubes are designed to withstand ultra-low temperature storage without deformation, ensuring reliable performance even in deep-freeze conditions. The secure, tight-sealing closure minimizes the risk of contamination, while the multi-colored caps allow for easy and efficient sample identification.

Key features:

  • Medical-grade materials – tube made of polypropylene (PP), cap made of high-density polyethylene (HDPE), and silicone O-ring; all components are free of heavy metals
  • High centrifugation resistance – maximum RCF up to 20,000 × g, suitable for demanding separation protocols
  • Wide temperature compatibility – stable from −80 °C to 121 °C; autoclavable
  • High material purity – free of detectable DNase, RNase, and human DNA; non-pyrogenic
  • Sterile execution – sterilized by irradiation and certified non-pyrogenic
  • Color-coded caps for easy identification – available in natural, red, blue, yellow, and green