Blog
Notes from the hall
Written for the engineer who has to specify a weldment and then live with it. Every figure here comes from the same certificates and machine list as the rest of the site, and where something is not published we say so instead of estimating it.
All notes
· 3 min read
S235 or S355, and what the letters after them mean
The number is the yield strength. The letters are the toughness, and they are the half that gets left off a drawing and then costs a week.
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· 2 min read
From drawing to delivered weldment, the eight steps
What actually happens to your drawing between the enquiry and the truck, and which of the eight steps is the one that decides the other seven.
Read· 6 min read
Welded part size: what 1.1 to 18.9 m in the gallery shows
The published models run from 1.1 to 18.9 m. What each structure group's size band shows about handling in the hall, and why the machines, not the gallery, set the limit.
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· 6 min read
Bending long steel parts on one press brake: 400 t over 6 050 mm
A long channel or cover is folded on one DURMA press brake: 400 t of force over 6 050 mm, with 365 mm of stroke. What the operator checks between bends, and what your drawing must show.
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· 5 min read
16 000 kg or 12 000 kg: matching the boring mill to your frame
Two boring mills share a 1 800 x 2 500 mm table. The WRD15 carries 16 000 kg on a 160 mm spindle and the WHQ13 carries 12 000 kg on a 130 mm spindle, so the weight of your frame decides which one it goes on.
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