Flame-cut parts and processes

Flame-cut parts

Recently, we added a flame-cutting plant to our machine stock. The ESAB Suprarex SXE – P 4000 machine is equipped with 2 oxyoxyacetylene cutters acetylene burners for construction steel with plate thicknesses of up to 1,60 mm and 1 fine-beam plasma torch for construction steel, stainless steel, aluminium etc. with plate thicknesses of up to 70 mm.

With this modern CNC-controlled flame cutter, we make low-cost individual parts, small or large series as well as large parts to your specifications. Our manufacturing management system and our plate store are dedicated to guaranteeing you get the parts you order quickly.

You submit your drawings, templates or sample pieces, and we convert them straight into CAD drawings. Alternatively, you can supply us with your own CAD files. Then, we use an NC program to convert the data for the flame cutter.

The combination of flame cutter technology and CAD data transfer ensures we meet the tolerances of DIN EN 0913: 2002 tolerance class 2 and cutting quality according to DIN EN 0913: 2002.  

Our range of flame-cut parts covers dimensions of up to 6,000 mm in length and 3,000 mm in width, with a maximum piece weight of 5 tons. We keep the materials S 235 JR , S 355 J2+N and 1.4301 in the standard plate thicknesses of 2 to 50 mm and dimensions of up to 1500 x 3000 mm in stock.

Special grades, dimensions and thicknesses can be supplied at short notice! The plates are mostly blasted and have a 3.1 approval test certificate from the plate manufacturer. Restamping authorisation is available.

Flame-cutting processes

Oxyacetylene cutting

This is a thermal cutting process using an acetylene-oxygen torch and cutting oxygen. The heat emitted by the torch during burning ensures continuous cutting by the oxygen. The oxygen jet blows off the slag produced by the process. That creates a cutting kerf. The ESAB multi-jet burners we use feature automatic internal ignition combined with the proportional valves of the SUPRAREX gantry cutting machine to ensure excellent cutting quality as well as endless reproducibility. Unlike plasma cutters, oxyacetylene flame cutters largely avoid slanted cuts, which results in closer tolerances even of thicker parts.

Plasma cutting

This is a thermal cutting process using a bundled arc. The plasma arc has an extremely high temperature and melts or partly evaporates the material and blows it away. That creates the cutting kerf. One of the advantages of this process is the low heat applied to the steel part, which minimises distortion. The high cutting speed keeps costs per cut metre low, and flame-cut parts – especially larger components and thinner plate – can be produced economically. The plasma jet can also be used to mark flame-cut parts without any re-equipping time. What’s more, our plasma cutter features patented Kjellberg HiFocus+ technology for laser-quality plasma cutting of construction steel with low angle deviation at higher cutting speed.