Press-welded grating
// Wenn Stabilität nicht nur versprochen, sondern verschweißt wird.
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Press-welded grating – maximum stability for industry and construction
A welded press-locked grating (also known as welded press-locked grating) is a heavy-duty grating comprising bearing bars and twisted cross-bars, which are permanently joined at every intersection under pressure using the resistance welding process. The result: extreme rigidity, high load-bearing capacity and a slip-resistant surface – ideal for walkways, platforms, stair treads and stage decking.
Why welded grating?
- Fully welded joints – every intersection is permanently bonded, nothing comes loose.
- Excellent load-bearing capacity – unweakened bearing bars distribute the load optimally.
- Slip resistance – twisted (square) infill bars improve grip.
- Perfect for finishing – cutting to size, cut-outs and finishing work are easily achievable.
- Corrosion protection – usually hot-dip galvanised, also available in stainless steel or powder-coated on request.
Typical applications
Oil & gas industry, mining, power stations, mechanical engineering, chemical industry, food industry, warehouse technology, façade and architectural applications, as well as public infrastructure (e.g. maintenance walkways, shafts, drainage channels).
Technical features
- Support bars: e.g. 25/2, 30/3, 40/3, 50/4 mm (flat steel)
- Filling bars: twisted (typically 6 mm) for a slip-resistant surface
- Mesh sizes: standard 30×30, 30×10, 33×33, 34×38 mm – others on request
- Finishes: bare, hot-dip galvanised, stainless steel, optionally colour-coated
- Edging: all-round flat bar / frame for clean edges and load transfer
Finding the right welded grating
- Define application: type of traffic, loads, slip resistance, indoor/outdoor.
- Select geometry: external dimensions, mesh size, bearing bar profile, edging.
- Specify surface finish: hot-dip galvanised, stainless steel or coating.
- Customisations: cut-outs, drill holes, welded-on parts, slip-resistant step profiles.
Do you need advice or a quote for your welded grating? Contact us – we supply made-to-measure products based on drawings or dimensions.
FAQ – Frequently asked questions about welded press-locked gratings
How is a welded press-locked grating manufactured?
Support bars (flat steel) and twisted infill bars are laid crosswise and welded at each intersection using the resistance welding process under high current and pressure. This is followed by edging with flat steel and, optionally, hot-dip galvanising.
What is the difference compared to a ‘normal’ grating?
With welded press-locked gratings, all joints are welded – this ensures maximum rigidity and durability. With other types of grating (e.g. press-locked gratings), cross bars are pressed into and locked into support profiles; this is lighter and often cheaper, but less resistant to twisting under very high loads.
What mesh sizes are recommended?
For walkways and platforms, 30×30 mm or 33×33 mm are common. For increased slip resistance and better load distribution, 30×10 mm is often used. Standards, safety requirements and cleanability should also be taken into account.
How is slip resistance achieved?
Through twisted infill bars, optional sawtooth profiles on the support bars, step nosing profiles and suitable mesh sizes. For outdoor areas, a coarser texture and hot-dip galvanising are also recommended.
What materials are available?
The standard material is S235JR steel (uncoated or hot-dip galvanised). For corrosive environments, we offer stainless steel (e.g. 1.4301/1.4571) or a powder coating in RAL colours.
Can a welded grating be machined afterwards?
Yes. Thanks to the fully welded joints, cutting, notching and drilling can be carried out very precisely and permanently. Any subsequent work should then be treated with a corrosion-protective finish (e.g. zinc dust paint).
What information do you need for a quotation?
External dimensions, mesh size, bearing bar profile, material/surface finish, quantity, edging type and any required modifications (drawing/sketch). We will prepare a tailor-made quotation based on this information.