PakGent Bioscience (Suzhou) Co., Ltd.
Screw Cap Tubes

Screw Cap Tubes

Our 5ml and 10ml Transport Tubes with screw caps are manufactured from virgin polypropylene and feature:

  • Graduations at 1.0ml intervals.

  • large frosted writing area.

  • Molded-in sealing rings on the cap for a leak proof seal.


Types of Screw Cap Tubes For Sale

Screw Cap Tube

Screw Cap Tube

A Screw Cap Tube is a type of packaging commonly used in the pharmaceutical, food, and cosmetic industries. This type of tube is made of a plastic material and is designed with an attached screw-on cap. The tube and cap are designed to create a secure seal, providing an airtight, leak-proof environment for the products inside. This type of packaging provides versatile and convenient options, as it is available in various sizes, colours, and designs. The tube also features a wide opening, making it easy to fill and use. Furthermore, the screw cap tube is cost-effective and requires minimal effort to open and close. This packaging solution is ideal for a variety of products and is an effective way to store and protect them for long-term use.
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Cryogenic Vials

Cryogenic Vials

Cryogenic vials are specialized containers designed to store and transport cryogenic materials. They are made of materials that are resistant to thermal shock and can withstand temperatures up to -196°C. They come in a variety of sizes and shapes, and feature a wide range of closures to ensure an airtight seal and prevent leakage. They are also designed for use in laboratory applications, such as storing and transporting biological samples, chemicals, and reagents.
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Cryogenic Boxes

Cryogenic Boxes

Cryogenic boxes are special temperature-controlled storage containers used to store and transport materials at ultra-low temperatures. They are made from high-grade materials to ensure that their contents can remain in a stable, cryogenic state for extended periods of time. They are also highly insulated, providing excellent temperature control and protection against external temperature fluctuations.
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Benefits of Using Screw Cap Tubes for Sample Collection and Storage

Secure Storage
Secure Storage

Screw cap tubes provide an efficient and secure way to collect and store samples.

Wide Range
Wide Range

They are airtight, allowing samples to remain uncontaminated while stored.

Easy Use
Easy Use

They also have a wide temperature range, helping to protect samples in extreme conditions.

Clear View
Clear View

They are easy to use and are available in a variety of sizes and shapes. They also provide a clear view of the sample, making it easier to identify the contents.


Cost-Effective
Cost-Effective

They are cost-effective and reusable, reducing the need for single-use disposables. They are also highly durable and can be used for long-term storage, making them an ideal choice for sample collection and storage.

How to Ensure a Secure Seal with Screw Cap Tubes

How to Ensure a Secure Seal with Screw Cap Tubes

When using screw cap tubes, it is important to ensure a secure seal to prevent contamination and leakage. To ensure a secure seal, start by making sure the cap is the correct size for the tube, as an oversized cap will not fit properly. Before screwing on the cap, clean the tube and cap with a lint-free cloth. This helps remove any dirt and debris that could affect the seal. When screwing the cap onto the tube, avoid over-tightening. This can cause the threads to break and create a poor seal.


When the cap is screwed on snugly, use a torque wrench to secure it. The torque should be set to the manufacturer's specification to ensure a tight seal. To check the seal, place the tube in a shallow pool of water. If the seal is secure, no water should enter the screw top plastic tubes. If water does enter the tube, the seal is not secure and the cap should be tightened further. For added security, use a sealant.


Once the cap is tightened, a sealant can be applied to the threads of the cap and tube. This helps ensure a secure seal and prevents any further leakage. In order to ensure a secure seal with screw cap tubes, it is important to use the correct size cap, clean the tube and cap before use, tighten the cap without over-tightening, use a torque wrench to secure the cap, and use a sealant for added security.

PakGent
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0512-6670-0017
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Floor 1-3, Building 33, Alloy Industrial Park, Wuzhong District, Suzhou, China
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