These external-thread cryo tubes are engineered for the reliable storage and transport of biological samples at ultra-low temperatures. Fabricated from medical-grade polypropylene (PP), every tube delivers consistent chemical resistance and mechanical strength across a working range of -196 C to 121 C. The exterior-thread closure limits internal contamination and, combined with a palette of cap colors, streamlines sample tracking in both research labs and clinical environments.

Features Of cryo tube

● Premium Medical-Grade PP: High-purity resin assures biocompatibility and long-term stability.

● Wide Temperature Tolerance: Suitable for extended cryogenic storage and routine autoclaving.

● External-Thread Design: Reduces contact points inside the tube, lowering cross-contamination risk.

● DNase, RNase, and Endotoxin Free: Safe for critical molecular and cell-based assays.

● Color-Coded Caps: Quick visual sorting cuts downtime and improves sample management.

● Sterilized and Ready to Use

Specifications Of Cryo Tube

Application Of cryo tubes

These tubes are vital in molecular-biology workflows, clinical diagnostics, biobanking, and pharmaceutical research. To use, fill the tube to the etched fill line, seal it tightly with the cap, and record an ID on the top. Store in cryogenic racks or liquid-nitrogen containers. Samples can later be thawed under controlled conditions. Designed to endure rapid temperature shifts, the tubes perform reliably in both vapor-phase and liquid-phase nitrogen.

Why Choose Jiangsu Huida's Cryo Tubes?

Jiangsu Huida stands among top medical-supply innovators, holding ISO 9001, ISO 13485, CE, and FDA credentials. Manufactured in particle-free clean rooms and assembled by advanced robotics, our cryo tubes offer unmatched purity, precision, and batch-to-batch consistency. Favored by laboratories around the globe, we also provide OEM solutions and fast international delivery.

Frequently Asked Questions.

Q1: What is the difference between external- and internal-thread cryo tubes?

A: External-thread tubes limit cross-contamination because the cap never touches the inner wall of the vessel.

Q2: Can these tubes be stored in liquid nitrogen?

A: Yes, they are rated to -196 C and work well in both liquid and vapor-phase nitrogen.

Q3: Are they safe to autoclave for sterilization?

A: Absolutely, the material survives 121 C, making them ideal for routine autoclave cycles.