Quick-Seal Ultra-Clear 344326 Centrifuge Tube for Type 70 Ti, Type 50.2 Ti and VTi 50 Rotors - Perfect Condition

Ultra-Clear™ 344326 Tube – An Essential Support for High-Precision Medical Sample Preparation

The Beckman Coulter model 344326 is a Quick-Seal® Ultra-Clear™ tube specifically designed for biomedical separations by ultracentrifugation. Its transparent material allows clear and direct visualisation of gradients, which is essential in applications such as lipoprotein separation, virus studies or cell subfraction analysis.

With a volume of 39 mL and a diameter of 25 mm, the tube fits perfectly with Type 70 Ti, Type 50.2 Ti and VTi 50 rotors, all used in H, R or S-rated ultracentrifuges. These classifications correspond to Beckman Coulter's safety and compatibility standards: centrifuges in these classes are capable of accommodating the aforementioned rotors, ensuring optimal performance in complete safety.

The 344326 tube is designed to withstand rotation speeds of up to 70,000 rpm depending on the rotor used, with a maximum force of 504,000 g. Thanks to its Quick-Seal® hermetic seal, it prevents any leakage or cross-contamination during centrifugation cycles. Its stability is ensured by the use of specific spacers (342699), which guarantee perfect retention in the rotor cavity.

This tube is part of a rigorous work chain where precision, mechanical performance and biological safety are paramount. It is recommended for use in medical and research environments requiring reproducible results, high reliability and high physical resistance.

• Volume: 39 mL
• Dimensions: 25 mm × 89 mm
• Material: Ultra-Clear™
• Closure type: Quick-Seal®
• Maximum speed: 70,000 rpm (Type 70 Ti), 50,000 rpm (Type 50.2 Ti, VTi 50)
• Maximum centrifugal force: 504,000 g (Type 70 Ti), 302,000 g (Type 50.2 Ti), 242,000 g (VTi 50)
• k factor: 44 (Type 70 Ti), 69 (Type 50.2 Ti), 36 (VTi 50)
• Classification of compatible centrifuges: Beckman Coulter Class H, R and S instruments