
Precision metalprocessing.From drawing to finished part.
Fiber laser cutting, CNC press brake bending, steel structures and metal fabrication. We work from your drawing — from a single piece to series production.
Welding
MAG 135 · ISO 3834-3
Qualified welding procedure (WPQR), verified by TÜV Thüringen.
- Cutting
- Fiber laser
- Sheet, square and round tube
- Bending
- CNC press brake
- Programmed sheet metal bending
- Welding
- MAG 135
- Qualified procedure, DIN EN ISO 3834-3
- Erection
- On site
- Own crew and equipment for site work
Four services that build on one another
A machine park under one roof
Fiber laser
CNCCutting sheet and tube
Cutting structural steel, stainless steel and aluminium, as well as square and round tube. Work from your drawing, with nesting for maximum sheet utilisation.
- Resonator power
- 3,000 W
- Working area
- 3,000 × 1,500 mm
- Steel (S235 / S355)
- up to 20 mm
- Stainless steel
- up to 12 mm
- Aluminium
- up to 10 mm
- Positioning accuracy
- ±0.05 mm
- Tube
- square and round
- Drawing formats
- DXF, DWG, PDF, STEP
CNC press brake
CNCProgrammed sheet bending
Bending with computer controlled force, angle and positioning. The program stores every bending step, so each part in the batch is identical.

- Manufacturer
- OMAG
- Press force
- 100 t (1,000 kN)
- Bending length
- 3,100 mm
- Control
- CNC, graphical programming
- Back gauge
- multi axis
- Angle repeatability
- ±0.1 mm
MAG welding
WPQRQualified procedure (WPQR)
Welding is carried out to a welding procedure qualification verified by TUV Thuringen. Every figure in this table is taken from the WPQR document.
- Process
- MAG 135 (ISO 4063)
- Parent material
- group 1 steels (ISO/TR 15608)
- Yield point
- up to 355 MPa
- Material thickness
- 6.0 – 24.0 mm
- Filler metal
- G3Si1 (ISO 14341-A)
- Shielding gas
- M21 (ISO 14175)
- Welding positions
- PA, PC, PF
- Joint type
- fillet weld, multi layer
The welding data is taken from the welding procedure qualification record (WPQR Z-64012/18, TUV Thuringen). For exact laser and press brake capacities please contact us — dimensions and thicknesses are verified before a quotation is confirmed.
Six steps from enquiry to delivery
- 01
Drawing and enquiry
We receive your drawing in DXF, DWG, PDF or STEP — or we produce it from a sketch, a sample or measurements taken on site.
- 02
Review and quotation
We check feasibility, material and thickness, plan the operation sequence and send a quotation with a lead time.
- 03
Preparation and nesting
Parts are nested on the sheet so that material use is maximised and the price per piece comes down.
- 04
Cutting and bending
We cut on the fiber laser, then bend on the CNC press brake following the programmed operation sequence.
- 05
Welding and assembly
Members are welded by the MAG process to the qualified WPQR procedure, or joined with bolted connections.
- 06
Inspection and delivery
We check dimensions and joints, then deliver the parts or carry out erection on site.
← Swipe for all steps →
Completed work from the shop and the site

Roof truss erection






- Registered office
- Gradačac, BiH
- Operating since
- 2016.
Manufacture of metal structures and their components
LIMOSTEEL" d.o.o. za proizvodnju metalnih konstrukcija i njihovih dijelova Gradačac has been operating successfully since 2016. We work in metal fabrication, steel structures, fiber laser cutting and CNC press brake bending.
Our plant is in Gradačac and we carry out work across Bosnia and Herzegovina and the wider region. A job starts with a drawing and ends with a measured, delivered part or an erected structure on site — with no intermediate steps at third parties.
The quality system and the welding procedure are certified by TÜV Thüringen to DIN EN ISO 9001 and DIN EN ISO 3834-3, alongside a qualified welding procedure (WPQR).
Six reasons you can verify
Our own machine park
Fiber laser, CNC press brake and welding equipment under one roof. No waiting on a third party and no passing responsibility between subcontractors.
Qualified welding
MAG process qualified through a WPQR verified by TUV Thuringen, alongside certification of the welding quality system to DIN EN ISO 3834-3.
From one piece to a series
With no tooling cost a prototype is viable even as a single piece, and the program is saved for every later order of the same part.
Work from your drawing
DXF, DWG, PDF and STEP. If there is no drawing, we produce it from a sketch, a sample or measurements taken on site.
Experience since 2016
Completed structures on production halls, long span canopies, commercial and service buildings.
Fabrication and erection
Members are fabricated in the shop and erected by our own crew — one address from drawing to finished building.
Documents issued by TÜV Thüringen


DIN EN ISO 3834-3:2006

DIN EN ISO 3834-3:2006

WPQR — Z-64012/18
The welding procedure qualification (WPQR Z-64012/18) covers the MAG process on group 1 steels up to 355 MPa, thicknesses 6.0 – 24.0 mm, in positions PA, PC and PF — the range in which most load bearing steel structures are made.
Answers to what you ask most often
If your question is not answered here, give us a call — we check feasibility before sending a quotation.
Fiber laser cutting is a process in which a high energy density beam is carried through an optical fibre to the cutting head and focused into a spot a few tenths of a millimetre across. The material melts instantly at that point and an assist gas jet blows the melt out of the kerf. The result is a narrow cut, a minimal heat affected zone and a clean edge that in most cases needs no rework.
CNC stands for Computer Numerical Control, which means a computer governs the whole process — from press force to sheet positioning. Angle, tool penetration depth and back gauge position are set in the program and the machine repeats them without deviation. That is why the hundredth part in a batch is identical to the first, with no trial bending and no scrap.
We accept DXF, DWG, PDF and STEP files. If you have no drawing, we produce one from your sketch, a sample, or measurements taken on site. For quotations a DXF is quickest, because the geometry can be checked and nested straight away.
We also make single pieces. Laser cutting carries no tooling cost, so a one off prototype is economically viable. On larger quantities the price per piece falls thanks to better sheet utilisation and a prepared bending program.
There are three main ones: high load capacity at low self weight (longer clear spans, lighter foundations, more usable space), speed of erection (members are fabricated in the shop while site preparation runs in parallel) and flexibility, or modularity — the building can later be extended, built onto, or dismantled and relocated.
By welding or by bolted connections. Welding produces rigid, monolithic and permanent joints in which the parts fuse into a single element. Bolted connections produce demountable joints, so the structure can be erected on site and later dismantled, relocated or extended. The choice depends on the structural design, the erection conditions and whether later modification is expected.
Send your drawing — you get a quote with a lead time.
We need the material, thickness, quantity and a drawing or measurements. If any of that is undefined, we come back with questions and propose a solution.
