SimPure Conical Centrifuge Tubes 50mL Pack of 500 - Leak-Proof Lab

In this review of the SimPure Conical Centrifuge Tubes 50mL pack, the bottom line is simple: these tubes are a practical, economical choice for labs and hobbyists who need dependable, leak-resistant containers in bulk. The reviewer found them well suited to sample separation and general lab work thanks to their polypropylene construction, clear graduations and longer screw caps with sealing rings that reduce leaks. For anyone needing many sterile, autoclavable tubes with clear write patches, these deliver reliable functionality without a premium price.

Key Features

• High purity polypropylene: The material offers chemical resistance and durability, making tubes suitable for routine lab workflows and safe for handling many aqueous samples.
• Leak-proof screw caps: Longer caps with sealing rings prevent spillages during transport or centrifugation, which reduces sample loss and contamination risk.
• Clear graduated markings: Bold black graduations in 1 mL increments with approximately 2% accuracy make volume measurement straightforward for experiments and sample prep.
• Writable identification patch: White write patches on each tube simplify labeling and sample tracking without relying on external labels.
• Autoclavable and freezable: Rated for autoclaving at 121C and freezing down to -80C, these tubes handle sterilization and cold storage workflows.
• Bulk pack value: Supplied as a pack of 500, the set is cost effective for high-throughput labs, education programs, or long-term stock.

Who It's For

These 50 mL conical tubes are aimed at small research labs, teaching labs, and technical facilities that require large quantities of reliable, general-purpose centrifuge tubes for sample separation, storage, and routine procedures. They suit applications in biochemistry and molecular biology where DNase/RNase-free and human DNA-free handling is helpful.

Those who need specialty tubes for ultracentrifugation beyond the stated max RCF, color-coded caps, or small boutique runs with custom labeling should look elsewhere. Also, if crystal-clear optical clarity for spectrophotometric reads is critical, a lab-grade optical tube may be preferable.

Pros & Cons

Pros

• Good build quality and leak resistance thanks to longer screw caps with sealing rings.
• Accurate, easy-to-read black graduations and a white write patch improve measurement and labeling.
• Autoclavable and freezable to -80C, covering common sterilization and storage needs.
• Excellent value for volume with a 500-piece pack for high usage environments.

Cons

• Not intended for extreme high-speed ultracentrifugation beyond the specified max RCF, so verify compatibility with specialized rotors.
• Bulk packaging may be excessive for users needing only a few tubes or color-coded cap options.

Specifications

Capacity	50 mL
Material	High purity polypropylene (PP)
Bottom style	Conical
Packaging	Pack of 500
Graduations	Black, 1 mL increments, approx. 2% accuracy
Sterility and purity	EO sterile, DNase/RNase free, human DNA-free
Temperature / RCF	Autoclavable to 121C, freezable to -80C, max RCF 9,400

Our Verdict

These SimPure 50 mL conical tubes are a practical, cost-effective choice for labs that need large quantities of reliable, leak-resistant tubes for routine sample work. With sturdy polypropylene construction, clear graduations and write patches, and compatibility with autoclave and low-temperature storage, they provide solid functionality and good value for most general laboratory and educational applications.

Frequently Asked Questions

Are these tubes sterile?
Yes, the tubes are EO sterile and supplied DNase/RNase free and human DNA-free for typical lab use.

Can these tubes be autoclaved and frozen?
Yes, they are autoclavable at 121C and can be frozen down to -80C while maintaining integrity.

What is the maximum centrifugal force they can tolerate?
The tubes are rated to a maximum RCF of 9,400, suitable for many general centrifugation tasks but not for extreme ultracentrifugation.