Glass Tube Manufacturers and Companies

IQS Directory implements a thorough list of glass tube manufacturers and suppliers. Utilize our listing to examine and sort top glass tube manufacturers with previews of ads and detailed descriptions of each product. Any glass tube company can design, engineer, and manufacture glass tubes to meet your companies specific qualifications. An easy connection to reach glass tube companies through our fast request for quote form is provided on our website. The company information includes website links, company profile, locations, phone, product videos and product information. Customer reviews are available and product specific news articles. This source is right for you whether it's for a manufacturer of hollow glass rods, glass pipes, and glass cylinders.

  • New Haven, IN

    At S&S Optical, we have an expert staff of glass cutters. We work with our customers to create any customer’s idea into a custom prototype and final product. We export products to Mexico, South America, Europe, Asia, Canada, and South America. We work hard to produce quality glass tube products and every other type of glass imaginable. Find out how we can help you on our website today!

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  • Cambridge, ON

    Glass cutting is a varied industry, and we have done it all for the past 50 years. We believe in manufacturing high quality glass products that will exceed customer expectations every time. Our goal and mission has always been to ensure our customers are satisfied and will come to us with all of their glass needs. Contact us to learn more today!

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  • Painesville Township, OH

    Founded in 1990, Technical Glass Products is a fabricator of Fused Quartz Glassware. We maintain a broad inventory of labware, flat stock, rod and tubes in addition to providing custom fabrication using state of the art equipment to suit your needs. Our commitment to excellence has resulted in TGP becoming America’s fastest growing supplier of stock shapes and fabricated products in the industry.

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  • Williamsburg, VA

    Coresix Precision Glass, Inc. is a fully integrated technical glass manufacturer specializing in high quality glass of all types. We are supported by a modern and fully integrated grinding department that can offer quality and cost effective manufacturing and fast delivery. Call us today for more information!

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Glass Tube Industry Information

Glass Tubes

The term “glass tubing” refers to those hollow cylinders that are made of glass of any kind. Typically, the glass used to make glass tubing is of a silicate origin and may or may not contain additives.

Quick links to Glass Tubes Information

Applications of Glass Tubes

Glass tubes are also known as glass cylinders or glass rods.

They have applications in countless fields, including:

  • Consumer Goods and Retail
  • Electrochemistry, Electronics
  • Industrial Manufacturing
  • Laboratory Work and Scientific Research
  • Pharmaceutical Packaging
  • Lighting
  • Interior Design
  • Product Presentation
  • Pneumatic Conveyor Systems

Glass tubes are also used in laboratory vials, medical vials, sterilized medical and/or lab tubes, fluorescent light bulbs, halogen light bulbs, sight glass, in-flow measuring cylinders, auto chemical and liquid transporters, backlights, and photobioreactors.

Sometimes, manufacturers may choose to curve or bend glass tubing while it is still heated, as it is more malleable when it is heated. However, this action is risky, as it can easily distort the cross section of the tubing. Nevertheless, manufacturers still pursue this from time to time, as curved glass tubing has many applications. A few of these applications include material storage and gas transportation.

Materials Used in Glass Tubes

Common glass types used include soda lime, quartz glass, flint, lead glass, borosilicate, and aluminosilicate. Sometimes, glass tubing may be made from safety glass, like laminated glass or tempered glass.

Manufacturing Process of Glass Tubes

Glass manufacturers can use a number of different processes to create glass tubing, including glass blowing and glass drawing. They can also fabricate glass tubing in many different standard and custom lengths and thicknesses.

In short, glassblowing involves inflating molten glass into a bubble known as a parison, into either a mold or free form into the air, and using a stream of air to keep the molten glass in this form until it has dried and hardened into the shape of a tube. Drawing is a similar procedure that involves first melting the glass and then drawing a stream of it in its molten form over a mold-like cone or cylinder. The glass must remain there until it hardens. Once it has cooled, it can be removed and treated further.

Glass drawing techniques can be divided into a few different categories: drawing direction horizontal, drawing direction downwards (down-draw), and drawing direction vertically upwards (vertical drawing). Note that drawing direction horizontal can be further divided into the subcategories of the Danner process and the Vello process. In addition to these processes, when glass tubing with exceptionally large diameters is required, glass tubing manufacturers may use the process of centrifugation.

Glass is a brittle material when it is left untreated. For this reason, if glass manufacturers want their products to be effective, after they have fabricated them, they must put the products through a process called annealing. Annealing is a process in which glass is reheated and then rapidly cooled. It serves glass tubing by making it stronger and more resistant to thermal shock and removing from it any spots of potential weakness or stress.

Points to Consider When Purchasing Glass Tubes

Those in the market for glass tubing should consider a few different things regarding their application or applications. First, they must consider the optical properties of a glass tube. In addition, they must take into account a tube’s loss tangent for energy, electrical properties (like electrical resistance), thermal capabilities (like thermal conductivity), and physical characteristics, such as wall thickness/density and material strength. To have all their questions answered and/or to receive a quote from a skilled and reputable glass tubing manufacturer, potential customers should reach out to one or more of the excellent suppliers listed on this page.

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