WATSON BIOLAB >  Products >  O-ring less Screwcap Tubes

O-ring less Screw Cap Micro Tubes

Double-sealed design, Leak-less even without O-ring

1st sealing point where the protruding part is located inside of the cap makes
the clearance between the cap and the body seal.
By fully tightening the cap, 2nd sealing point makes both upper and main body seal
completely seal, resulting in preventing test sample leakage and evaporation.

Duable for centrifugal force

Durable for centrifugal force 20,000×G*
our originally designed tube using 100% virgin medical-grade polypropylene proves resistance against a centrifugal force as high as 20,000×G (water, 15min, adapter used).
*0.5mL Tube:17,000×G

Convenient for positioning the tube when centrifugation

Convenient for positioning the tube when centrifugation
A marker (notch), which is convenient for positioning the tube during centrifugation and other purposes, is provided on the flange of the tube.

user-friendly packaging

User-friendly and small group packaging
A small sterilized package consists of 20 pcs of screw tubes with its caps sealed completely.
More hygienic performance is available.

polyethylene cap

Polyethylene Cap
The lineup of user-selectable 5 colors is capable of classification.
*Not Autoclavable

Precautions: Handling Screwcap Tubes under the Liquid Nitrogen

  • In terms of safety, store the screwcap tubes in the vapor phase.
  • To avoid any risks such as the tube rupture and the sample spatter, do NOT handle the screwcap tube under the liquid phase.
  • Fill up the test sample into the body of the screwcap tube up to the degree of 90% of the maximum content.
  • Wear a face shield, protective clothes, and gloves when handling liquid nitrogen for defrosting.

O-ring less Screwcap Tubes Line UP

1.5mL(Conical Bottom / Self-Standing)
1.5ml Conical Bottom 1.5ml Self-Standing

Link to 1.5mL O-ring less Screwcap Tubes

2.0mL(Conical Bottom / Self-Standing)
2.0ml Conical Bottom 2.0ml Self-Standing

Link to 2.0mL O-ring less Screwcap Tubes

general WEB catalog
downloadable catalog
Microfabrication of plastic