We exchange and supply – Oxygen, Acetelene, Magmix, Argon, Argon Spec, CO2 wet, CO2 Dry, Helium, Cougar 84, Foodline CO2, Foodline (Freshline), Nitrogen, Nitrogen Spec, Medical Oxygen, Laboratory Helium. Our cylinders work on a rental basis i.e. you will be charged a monthly rental for these cylinders plus the cost of the gas when you exchange. If you already have an Air Products cylinder, you can just come in and exchange your cylinder.
Magmix for Mig/Mag Welding
Air Products’ shielding gases are commonly used in several welding processes, mostly MIG/MAG and TIG welding. The selection of a suitable welding gas is essential for the welding process. The welding gas not only protects the weld metal from the surrounding air, it can also contribute to higher productivity and to better mechanical properties of the weld.
Air Products offers a full range of standard shielding gas mixtures for MIG/MAG welding for all common material types.
MIG (metal inert gas) and MAG (metal active gas) welding are widely used wherever medium and high fusion rates are required. Both techniques use a DC arc burning freely between the workpiece and a wire electrode, which functions simultaneously as a power carrier and a source of filler metal. For MIG welding, the gas is inert: argon or an argon-helium mix. MAG welding uses a mixture of argon with an active gas such as oxygen, CO2 or both. Air Products standard gases are available in traditional cylinder sizes at 200 bar and 300 bar cylinder pressure.
Oxygen or Medical Oxygen
Oxygen (O2) constitutes approximately 21% of the air, has a gaseous specific gravity of 1.1, and has a boiling point of -297.3°F (-183°C). Oxygen is produced by air separation processes that use either cryogenic liquefaction and distillation or vacuum swing adsorption (VSA) separation. Oxygen can be stored and shipped as either a gas or a cryogenic liquid.
The principal uses of oxygen stem from its strong oxidising and life-sustaining properties. It is used in medicine for therapeutic purposes and in the metals industry for steel-making and metal-cutting applications. In the chemical and petroleum industries, oxygen is used in the production of a wide variety of fuels and chemicals. In the pulp and paper industry, oxygen is used for a variety of applications, including pulp bleaching, black liquor oxidation, and lime kiln enrichment. In the glass industry, oxygen/fuel combustion is used to reduce particulate and NOx emissions in melting operations. Oxygen is also used for gasification applications for producing synethesis gas to make chemicals, fuels, electricity, hydrogen or steam.
If you require medical oxygen, please ensure that you specify this when placing your order.
Acetylene is the primary fuel for oxy-fuel welding and is the fuel of choice for repair work and general cutting and welding, Acetylene produces the hottest and most concentrated primary flame of all industrial fuel gases. Its calorific value is fairly low, but the portion emitted by the primary flame is very high, about 30%, making acetylene the fuel gas that produces the most heat in the primary flame.
Argon (Ar) is a monatomic, chemically inert gas which constitutes slightly less than 1% of the air. Its gaseous specific gravity is 1.38 and its boiling point is 302.6°F (185.9°C). Argon is colourless, odourless, tasteless, non-corrosive, non-flammable, and non-toxic. Commercial argon is the product of cryogenic air separation, whereby liquefaction and distillation processes are used to produce a low-purity ‘crude’ argon product which is then purified to produce the commercial product. Argon is used primarily for its properties as an inert gas in applications such as arc welding, steel-making, heat treating, and electronics manufacturing.
To order, or for more information on industrial gas, please email us on email@example.com or call 011 660 3723.
Nitrogen (N2) constitutes 78.03% of the air, has a gaseous specific gravity of 0.967, and a boiling point of -320.5°F (-195.8°C) at atmospheric pressure. It is colourless, odourless, and tasteless. Nitrogen is often used as an ‘inert’ gas due to its non-reactive nature with many materials. However, nitrogen can form certain compounds under the influence of chemicals, catalysts, or high temperature. Commercial nitrogen is produced through a variety of air separation processes, including cryogenic liquefaction and distillation, pressure swing adsorption (PSA), and membrane separation.
Gaseous nitrogen is used in the chemical and petroleum industries for storage tank blanketing and vessel inerting applications. It is also used extensively by the electronics and metals industries for its inert properties. Liquid nitrogen, produced by the cryogenic air separation process, finds wide use as a refrigerant in applications such as cryogenic grinding of plastics and food freezing.
Imagine the ability to keep your chilled food products fresh for longer. With Freshline solutions this is now a possibility.
This new process adds extra flexibility to your production: it makes it possible to produce your product when it suits you, store it frozen, then thaw it whenever your customer needs it, with a quality comparable to fresh modified atmosphere packaging (MAP) products.
Systematic scientific studies on various food products have proven this methodology can help you meet your sustainability targets, while making cost savings and dealing with supply chain constraints.
Carbon Dioxide (CO2)
Carbon dioxide is a colourless, odourless, non-flammable and slightly acidic liquefied gas. CO2 is heavier than air and soluble in water.
CO2is produced industrially by using sources of CO2 obtained through processes in the petrochemical industry, or by burning natural gas in co-generation processes. Air Products supplies CO2 to customers worldwide as a liquefied gas. It is delivered under pressure in steel cylinders and refrigerated in thermally insulated containers. Used in welding and other processes.