Wholesale -196°C Cryogenic Storage Tubes with Competitive Pricing

Email: info@mggpacking.com | Tel: +86-13510174848 ( Mr. Yao)

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In the world of medical research, pharmaceutical development, and biobanking, there's a silent hero that often goes unnoticed: the cryogenic storage tube. These small but mighty containers are the guardians of life-saving samples, preserving everything from vaccine materials and stem cells to blood samples and genetic research specimens at bone-chilling temperatures. As a leading cryogenic tubes manufacturer with over 15 years of experience, we understand that when it comes to storing sensitive biological materials, there's no room for compromise. That's why we've dedicated ourselves to crafting storage solutions that combine precision engineering, uncompromising quality, and cost-effectiveness—because we know your work deserves nothing less than reliability you can trust.

Whether you're a research lab managing thousands of patient samples, a pharmaceutical company scaling up vaccine production, or a biotech startup pioneering new therapies, the right cryogenic tubes can make all the difference. In this guide, we'll take you through everything you need to know about our wholesale cryogenic storage tubes: from their robust design and technical specifications to our customizable options and strict quality control processes. We'll also share why partnering with a factory that holds ISO9001 certified packaging factory and dust-free GMP compliant workshop certifications isn't just a checkbox—it's a commitment to protecting what matters most in your work.

Why Our Cryogenic Tubes Stand Out: More Than Just a Container

At first glance, a cryogenic tube might seem like a simple plastic container. But under the surface, every detail is engineered to address the unique challenges of ultra-low temperature storage. Let's break down what makes our tubes the top choice for labs and companies worldwide:

Medical-Grade Materials for Unbeatable Durability

We start with the basics: material. Our cryogenic tubes are crafted from high-purity polypropylene (PP), a medical-grade plastic known for its exceptional resistance to extreme cold and chemical stability. Unlike cheaper plastics that can become brittle and crack at -80°C, let alone -196°C (the temperature of liquid nitrogen), our PP tubes maintain their structural integrity even after repeated freeze-thaw cycles. This means you won't have to worry about sample loss due to tube failure—a critical factor when working with irreplaceable specimens. And because we source only FDA-compliant, USP Class VI certified raw materials, you can trust that our tubes won't leach harmful substances or contaminate your samples over time.

Leak-Proof Design: Your Samples Stay Where They Belong

There's nothing more frustrating (or costly) than discovering a leak in your cryogenic storage. That's why we've invested heavily in perfecting our sealing technology. Each tube comes equipped with a silicone gasket integrated into the cap, creating an airtight seal that prevents liquid nitrogen infiltration and sample evaporation. We test every batch for leaks using a vacuum chamber method: tubes are filled with colored dye, capped, and submerged in liquid nitrogen for 24 hours. If even one tube shows signs of leakage, the entire batch is rejected. It's a rigorous process, but we sleep better knowing your samples are safe— and we're pretty sure you will too.

Engineered to Withstand the Harshest Conditions

Let's talk temperature: -196°C is not just cold—it's the kind of cold that can shatter ordinary plastics, crack seals, and ruin samples. Our tubes are designed to thrive in this environment. During testing, we subject them to rapid temperature changes (from room temperature to -196°C and back) 50 times in a row to simulate real-world lab use. The result? Tubes that remain flexible enough to resist cracking while maintaining their seal. This durability is especially important for labs that frequently access samples from liquid nitrogen tanks—no more worrying about tubes breaking when you're in the middle of a time-sensitive experiment.

Sterility You Can Rely On

Contamination is the enemy of any biological sample. That's why every tube leaves our facility sterile and ready for immediate use. We offer two sterilization options to meet your needs: ethylene oxide (EO) sterilization, which is ideal for heat-sensitive materials, and gamma irradiation, a more thorough method that penetrates the entire tube. Both processes are validated to meet ISO 11135 standards, ensuring a sterility assurance level (SAL) of 10⁻⁶—that's a less than 1 in 1,000,000 chance of contamination. And to keep them sterile until you're ready to use them, each tube is individually wrapped in a peel-open sterile pouch, making them easy to access without compromising cleanliness.

Designed for Real Labs, by People Who Know Labs

We've worked closely with lab technicians and researchers to add little touches that make a big difference in daily use. Take our writing surface, for example: the external surface of each tube is treated to be compatible with permanent markers, so labels won't smudge or fade even after repeated exposure to liquid nitrogen. For labs using barcoding systems, we offer pre-printed barcode labels with unique IDs, or you can opt for tubes with a barcode-compatible surface that works with your existing labeling equipment. We also offer both conical and round bottom options: conical bottoms are perfect for centrifugation, while round bottoms provide better stability in storage racks. It's these small details that turn a good tube into a tool that makes your workflow smoother.

Technical Specifications: Find the Perfect Tube for Your Needs

Every lab has unique requirements, which is why we offer a range of cryogenic tube sizes and configurations. Below is a detailed breakdown of our standard offerings—if you don't see exactly what you need, don't worry: we specialize in custom mold design for plastic bottles and can create tailored solutions to match your specifications.

Model Number	Capacity	Thread Type	Bottom Design	Sterilization Method	Material	Temperature Range	Dimensions (H x D)	Packaging
CT-05	0.5ml	Internal Thread (12mm)	Conical	EO Sterilized	Medical-Grade PP	-196°C to +121°C	45mm x 12mm	500 pcs/box, 10 boxes/carton
CT-18	1.8ml	Internal Thread (16mm)	Conical	Gamma Sterilized	Medical-Grade PP	-196°C to +121°C	65mm x 16mm	500 pcs/box, 8 boxes/carton
CT-20	2ml	External Thread (16mm)	Round	EO Sterilized	Medical-Grade PP	-196°C to +121°C	70mm x 16mm	500 pcs/box, 8 boxes/carton
CT-50	5ml	External Thread (22mm)	Round	Gamma Sterilized	Medical-Grade PP	-196°C to +121°C	90mm x 22mm	200 pcs/box, 5 boxes/carton

*All dimensions are approximate and may vary slightly due to manufacturing tolerances. For custom sizes or thread types, please contact our sales team for a free consultation.

Custom Solutions: Because Your Work Isn't One-Size-Fits-All

We get it: sometimes off-the-shelf just doesn't cut it. Maybe you need a unique capacity for a specific experiment, or you want to add your lab's logo to tubes for better inventory management. Whatever your needs, our custom mold design for plastic bottles service allows us to create cryogenic tubes that fit your exact requirements—without the high costs and long lead times you might expect from other manufacturers.

Custom Mold Design: Bring Your Vision to Life

Our in-house mold design and manufacturing team specializes in turning ideas into reality. Here's how it works: you share your requirements (whether it's a 3D drawing, a sketch, or just a list of specifications), and our engineers will create a detailed design proposal, including material recommendations and feasibility analysis. Once you approve the design, we'll build a prototype mold and produce sample tubes for testing—all at no extra cost for the initial mold test. We use state-of-the-art 3D modeling software and CNC machining to ensure precision, and our team has experience with everything from minor modifications (like adding graduations or changing thread sizes) to completely new tube designs. Recent projects include a custom 3ml tube with a integrated O-ring for enhanced sealing and a 1ml tube with a flat bottom for automated pipetting systems.

Branding & Labeling: Make Them Yours

Your cryogenic tubes can do more than just store samples—they can also reinforce your brand or streamline your lab's workflow. We offer a range of branding options, including embossed logos on the tube or cap, silk-screen printing for colored logos or text, and custom barcode labels with your lab's unique identifiers. For biotech companies distributing samples to partners, we can even create custom packaging boxes with your company name and contact information. These small touches not only make your tubes easier to identify but also add a professional touch to your operations.

Material & Color Customization

While our standard tubes are made from clear medical-grade PP, we can also produce tubes in a range of colors by adding FDA-compliant colorants. Colored tubes are great for sample categorization (e.g., red for blood samples, blue for DNA) or for light-sensitive materials. We also offer tubes made from PP with added UV inhibitors for samples that need extra protection from light. For clients prioritizing sustainability, we can incorporate PCR (post-consumer recycled) PP into the material mix—just ask our sales team for details on our eco-friendly options.

Quality You Can Verify: From Raw Material to Finished Product

When you're trusting a tube with samples that take weeks or months to collect, you need to know that quality isn't just a marketing buzzword. At our facility, quality control is woven into every step of the manufacturing process—backed by our ISO9001 certified packaging factory and dust-free GMP compliant workshop certifications. Here's a behind-the-scenes look at how we ensure every tube meets our strict standards:

Raw Material Inspection: The Foundation of Quality

We start by selecting only the highest-grade raw materials from trusted suppliers who provide full material certificates (COA). Each batch of PP resin is tested for purity, density, and melt flow rate to ensure it meets our specifications for cryogenic use. We also conduct migration testing to verify that no harmful substances leach from the plastic—a critical step for medical grade plastic bottles used in contact with biological materials. If a batch doesn't pass, it's rejected immediately—no exceptions.

In-Process Testing: Catching Issues Early

During production, our quality control team takes samples every hour to check for dimensional accuracy, thread fit, and seal integrity. Using precision calipers and thread gauges, we ensure that tube diameters, heights, and wall thicknesses are consistent within ±0.1mm. The seal test is particularly rigorous: we screw caps onto tubes, submerge them in water, and apply pressure to check for bubbles—a sure sign of a leak. Any tubes that fail these checks are removed from the production line immediately, and the issue is addressed before more tubes are produced.

Sterility & Performance Testing: Beyond the Basics

After production, finished tubes undergo a series of performance tests to simulate real-world use. We subject samples to 50 freeze-thaw cycles (from -196°C to room temperature) to test for cracking or weakening. We also perform a "ｄｒｏｐ test" by dropping capped tubes from a height of 1 meter onto a hard surface to ensure they don't crack or open. For sterile tubes, we conduct sterility testing according to ISO 11737 standards, incubating samples in growth media to check for microbial contamination. Only batches with zero contamination and 100% pass rates on these tests make it to our customers.

Documentation: Transparency You Can Trust

We believe quality should be verifiable, which is why we provide comprehensive documentation with every order. This includes a Certificate of Analysis (COA) detailing the batch number, sterilization method and date, material specifications, and test results. For clients with strict regulatory requirements (like pharmaceutical companies), we can also provide validation reports for our sterilization processes, mold qualification documents, and material safety data sheets (MSDS). Our quality management system is audited annually by third-party certifiers to maintain our ISO 9001 and GMP certifications, and we're happy to arrange factory tours for clients who want to see our processes firsthand.

Sustainable Solutions: Protecting Samples and the Planet

In today's world, sustainability isn't just a trend—it's a responsibility. As a manufacturer, we're committed to reducing our environmental impact while still delivering the high-quality products you rely on. Here's how we're working to make our cryogenic tubes more sustainable without compromising performance:

PCR Material Options: Giving Plastic a Second Life

We're proud to offer cryogenic tubes made with post-consumer recycled (PCR) PP plastic. Our PCR PP is sourced from recycled plastic bottles that are thoroughly cleaned, melted down, and processed to meet the same medical-grade standards as virgin PP. While PCR materials can sometimes affect color clarity, our engineering team has optimized the formula to ensure PCR tubes maintain the same strength, flexibility, and chemical resistance as our standard tubes. Using PCR tubes reduces reliance on fossil fuels and keeps plastic out of landfills—plus, they're available at the same competitive prices as our virgin plastic options.

Eco-Friendly Packaging

We've also reimagined our packaging to reduce waste. Our standard packaging uses recyclable cardboard boxes with minimal plastic wrapping, and we've eliminated unnecessary inserts and leaflets. For bulk orders, we offer reusable plastic storage racks that can be returned to us for cleaning and reuse, reducing the need for single-use packaging. We're also exploring biodegradable packaging options for our individual tube pouches—stay tuned for updates on this initiative!

Energy-Efficient Manufacturing

Our factory is equipped with energy-efficient injection molding machines and LED lighting, and we've implemented a solar panel system that provides 20% of our electricity needs. We also recycle 95% of our production waste (like plastic trimmings and rejected tubes) by reprocessing it into non-medical plastic products, ensuring nothing goes to waste. These efforts not only reduce our carbon footprint but also help keep our production costs low—savings we pass on to you in the form of competitive wholesale pricing.

Why Choose Us as Your Cryogenic Tubes Supplier? It's Simple: We Speak Your Language

With so many suppliers to choose from, you might be wondering what sets us apart. Here's the truth: we don't just sell cryogenic tubes—we partner with our clients to solve their storage challenges. Here are a few reasons labs and companies around the world choose to work with us:

We Understand Your Timeline (and Budget)

We know lab work moves fast, which is why we've optimized our production to offer some of the shortest lead times in the industry. Standard orders ship within 7-10 days, and rush orders can be fulfilled in as little as 3-5 days. We also offer flexible payment terms and volume discounts for wholesale orders, with prices starting as low as $0.12 per tube for bulk quantities. As a factory-direct supplier, we cut out the middleman, ensuring you get the best possible price without sacrificing quality.

Technical Support When You Need It

Our team isn't just made up of salespeople—we have a dedicated technical support staff with backgrounds in microbiology and lab management who can answer your questions and help you ｓｅｌｅｃｔ the right tubes for your application. Whether you're unsure about which sterilization method is best for your samples or need help designing a custom tube, we're here to provide expert advice—before, during, and after your purchase. We also offer free samples of any of our standard tubes, so you can test them in your lab before placing a large order.

Global Reach, Local Service

As a China plastic bottle exporter , we ship to over 50 countries worldwide, with dedicated logistics partners to ensure your order arrives on time and in perfect condition. We handle all the details, from customs documentation to shipping insurance, so you can focus on your work. For clients in key markets like Europe, North America, and Southeast Asia, we maintain local warehouses to offer faster delivery times and easier returns if needed. Our multilingual sales team speaks English, Spanish, German, and French, ensuring clear communication no matter where you're located.

A Partner for the Long Haul

We don't just want your business for one order—we want to grow with you. Many of our clients have been with us for 5+ years, and we pride ourselves on building relationships based on trust and reliability. Whether you need to scale up orders as your lab expands or pivot to new tube designs as your research evolves, we're committed to adapting to your needs. We even offer a loyalty program for repeat customers, with additional discounts and priority production slots for long-term partners.

Frequently Asked Questions: Your Concerns, Answered

We've worked with hundreds of labs and companies over the years, and we've heard just about every question under the sun. Here are answers to some of the most common ones we get—if you don't see yours here, feel free to reach out to our team!

What's the minimum order quantity (MOQ) for wholesale cryogenic tubes?

Our standard MOQ is 5,000 units per model for standard tubes, but we can often accommodate smaller orders for new customers (just ask!). For custom designs or branded tubes, the MOQ is typically 10,000 units due to the mold setup costs, though this can vary depending on the complexity of the customization. We also offer mixed orders (e.g., 2,500 units of 1.8ml and 2,500 units of 2ml) to help you stock up on multiple sizes without meeting the MOQ for each individually.

How do I know if your tubes are compatible with my storage racks or freezers?

Our standard tubes are designed to fit most universal cryogenic storage racks and freezers on the market. We provide detailed dimension drawings for each model (available on our website or by request), and our technical team can cross-reference your specific rack or freezer model to ensure compatibility. If you have a non-standard rack system, we can also design custom tubes with adjusted diameters or heights to fit perfectly—just share the rack specifications with us!

Can your tubes be reused?

While our tubes are technically durable enough to withstand autoclaving (up to 121°C), we recommend using them for single-use only. Reusing tubes increases the risk of cross-contamination, even with thorough cleaning, and repeated autoclaving can degrade the silicone gasket over time, compromising the seal. For labs looking to reduce costs, we offer bulk pricing on large orders and PCR material options, which are more economical than reusing tubes.

What's your return policy if the tubes don't meet our expectations?

Your satisfaction is our priority. If you receive a batch of tubes that doesn't meet the specifications in the COA (e.g., sterility failure, leaks, or dimensional issues), we'll ｒｅｐｌａｃｅ the order at no cost or issue a full refund—whichever you prefer. We ask that you notify us within 30 days of receiving the order and provide photos or test results documenting the issue. For custom orders, we provide samples for approval before full production, so you can catch any issues early and avoid returns altogether.

Do you offer any certifications beyond ISO 9001 and GMP?

Yes! In addition to ISO 9001:2015 and GMP compliance, our cryogenic tubes meet a range of international standards, including USP Class VI (for medical device materials), ISO 11135 (sterilization validation), and CE marking for the European market. We're also in the process of obtaining FDA registration for our medical-grade products, which is expected to be completed by Q3 2026. For clients in the pharmaceutical industry, we can provide documentation to support your FDA or EMA submissions, including batch records and sterilization validation reports.

Ready to Elevate Your Cryogenic Storage? Let's Get Started

At the end of the day, cryogenic storage tubes are more than just containers—they're the foundation of your research, the protectors of your samples, and a critical part of your lab's success. When you choose our wholesale cryogenic tubes, you're not just buying a product—you're partnering with a team that understands the stakes of your work and is committed to delivering reliability, quality, and value every step of the way.

Whether you need standard 1.8ml tubes for routine sample storage, custom-designed tubes for a unique experiment, or bulk orders to stock your biobank, we're here to help. With our dust-free GMP compliant workshop , ISO9001 certified packaging factory , and dedication to sustainability, we're confident we can meet and exceed your expectations.

Ready to place an order, request a sample, or discuss a custom solution? Contact our sales team today—we're available 24/7 via email, phone, or live chat on our website. Let's work together to find the perfect cryogenic storage solution for your lab.

MGG group focuses on designing, developing, manufacturing plastic container packaging, keep you in post for each process, eliminating risks and saving costs for you.

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Mail:info@mggpacking.com

Phone:+86-13510174848 ( Mr. Yao)

Address:Building A, Guanshen Science and Technology Park, Fenggang Town, Dongguan, Guangdong, China. 523000

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