Hobbyweld 15 (Ultra) is the high-capacity version of the 15 mix, a MIG/MAG shielding gas for welding thicker steel. It’s the same argon tri-mix with around 15% CO2 and 2% oxygen, but in a bigger 20-litre cylinder at 300 bar, so you get a lot more welding time between refills.
The CO2 content lets you weld up to around 18mm in steel thickness, which suits heavier-duty work and engineering-type fabrication. It’s easy to use too: the cylinder has a built-in regulator to set your flow rate, and the push-fit system connects in seconds.
This is the Ultra cylinder, the one to choose if you weld a fair amount and want fewer changes. We deliver across our defined Reading area, so check your postcode is covered, or call the yard on 0118 9242888.
Hobbyweld 5 (Ultra) is the high-capacity version of the 5 mix, a bestselling MIG shielding gas for thinner sheet steel. It’s the same argon tri-mix, around 93% argon, 5% CO2 and 2% oxygen, but in a bigger 20-litre cylinder at 300 bar, so you get much more welding time between refills.
The low CO2 content suits sheet metal and mild steel under about 7mm, like car bodywork and light sheet work. Compared with straight CO2, it cuts the chance of porosity, spatter and oxidation, giving a clean, sound weld, which is why it’s a favourite for vehicle restoration and classic cars and motorcycles.
This is the Ultra cylinder, the one to choose if you weld a fair amount and want fewer changes. We deliver across our defined Reading area, so check your postcode is covered, or call the yard on 0118 9242888.
Hobbyweld Acetylene (Ultra) is the high-capacity acetylene cylinder, made for the professional or heavier user. It holds much more gas than the Original, with a water capacity of around 15.9 litres and a gas capacity of about 2.55 cubic metres, and it has a built-in contents gauge so you can keep track of what’s left.
Acetylene is the hottest, most efficient fuel gas on the market, and the only fuel gas hot enough to weld steel. Used with oxygen in an oxy-acetylene set, it handles cutting, welding, brazing and soldering.
For safety, flash back arrestors must be fitted to oxygen and fuel-gas equipment, in line with the Acetylene Safety Regulations 2014. We deliver across our defined Reading area, so check your postcode is covered, or call the yard on 0118 9242888.
The Hobbyweld Argon Ultra cylinder is the big-capacity choice for anyone who welds a fair amount. It’s pure argon filled to a minimum purity of 99.995%, the standard shielding gas for TIG welding stainless steel, carbon steel, aluminium and other non-ferrous metals. On a MIG welder with the correct wire it covers aluminium and alloys too.
The Ultra is 20 litres water capacity, filled to 300 bar, so it holds well over twice the gas of the Original cylinder. It also has a built-in contents gauge, which is the part professionals tend to want: you can see at a glance how much gas is left rather than guessing mid-job.
The bigger capacity means fewer swaps and less interruption when you’re working through argon. We deliver across our defined Reading area, so check your postcode is covered, or call the yard on 0118 9242888.
The Hobbyweld Oxygen Ultra cylinder is the large-capacity oxygen bottle, built for professionals and anyone who cuts or welds regularly. It’s 100% oxygen, used with a fuel gas such as propane, acetylene or propylene for cutting, welding, brazing and soldering, supporting combustion so the flame runs far hotter than it could on air.
Purity is worth understanding. Even a 1% drop can increase oxygen consumption by 20% or more, so Hobbyweld fills these cylinders from a bulk tank to keep purity high and your gas efficient.
The Ultra holds 20 litres water capacity at 300 bar, well over twice the Original, and has a built-in contents gauge so you can see what’s left. In line with the Acetylene Safety Regulations 2014, flash-back arrestors must be fitted with oxygen and fuel gas equipment. We deliver across our defined Reading area, so check your postcode is covered, or call the yard on 0118 9242888.
