BM-S355
Welded steelwork
- EN 1090-2 EXC2 · S355JR
- ISO 3834-2 welding
Steel fabrication · Shandong, China
Steel fabrication and precision metal parts, built to drawing
// Since — 2004 //
Structural steelwork, laser cut plate, formed sheet and machined parts, fabricated from your drawing.
- Execution
- EN 1090-2 EXC2
- Machining
- ±0.02 mm · IT7
- Plate
- 0.5–25 mm laser
- Modules
- to 12 m shipped
Fabrication lines
Five fabrication lines
Five routes in one shop, each inspected against the tolerance band on your drawing.
BM-LASER
Laser cut plate
- 0.5–25 mm · ±0.10 mm
- Q235B / 304 / 6061-T6
BM-PRESS
Press-braked parts
- 400 t · 4 000 mm
- ±0.5° bend angle
BM-CNC
Machined components
- ±0.02 mm · IT7
- Ø520 × 1 000 mm turned
BM-HDG
Hot-dip galvanizing
- ISO 1461 · 85 µm min
- ASTM B117 · 480 h
Route card
One part, six steps
Six gates, same order every job. Your drawing decides which one matters most.
01
Drawing and WPS review
DXF, STEP or PDF in. We confirm the material grade, the tolerance band and the EN 1090-2 execution class before quoting.
02
Cutting
Fibre laser 0.5–25 mm to ±0.10 mm on profile; plasma to 60 mm for thicker plate.
03
Forming
400 t press brake on a 4 000 mm bed, ±0.5° bend angle; plate rolled to Ø800 mm.
04
Welding
WPS qualified to EN ISO 15614-1, welders coded to EN ISO 9606-1 and AWS D1.1.
05
Machining
CNC turning and 3/4-axis milling to ±0.02 mm, IT7 roundness, Ra 0.8 µm.
06
Inspection and finishing
Dimensional report, 100% visual and 10% MT, then ISO 1461 galvanizing or ISO 12944 coating.
Applications
Where the parts go
Three working conditions, and the one number on each that decides the part.
Industrial steelwork
BM-S355 · BM-HDG
- Decided by
- Execution class and corrosion system
EXC2 is the default for portal frames and conveyor supports; coastal and agricultural work goes out galvanized to ISO 1461 rather than painted.
Machine guards and enclosures
BM-LASER · BM-PRESS
- Decided by
- General tolerance against the drawing
ISO 2768-1 class m covers most guards and covers. Where a bearing or a seal seats, the drawing calls out the tighter band and the part moves to machining.
Outdoor and coastal parts
BM-HDG · BM-CNC
- Decided by
- Coating life in the service environment
ISO 12944 C3 to C5 decides the system, not the colour. Cut edges and threads are the first place a coating fails, so they are specified separately.
The company
Who does the work
Cold metal in, packed steel out — six processes under one roof.
- Founded
- 2004
- Works area
- 42,000m²Covered bays and a galvanizing line
- Export share
- 68%Shipped on FOB and CIF terms
- Staff on site
- 246178 production · 24 QC · 18 engineering
Fibre laser cutting, press braking, welding with coded procedures, CNC machining, hot-dip galvanizing and a CMM room — all in house.
- European Union
- NL / DE / PL / ES
- Australia and New Zealand
- AU / NZ
- Middle East
- AE / SA / QA
- North America
- US / CA
- Southeast Asia
- ID / PH / MY / TH / VN
Published values are confirmed per project in the inspection plan issued with each order.
Inside the plant
Every part measured before it ships
First article per drawing revision, sampling through the batch.
Welding and QC
Welding and inspection
The two gates that decide whether a structural part is accepted: procedure and measurement.
- Welding quality
- ISO 3834-2full-scope quality requirements, procedures written per job
- Procedure qualification
- EN ISO 15614-1WPS issued and signed off before the first weld
- Coded welders
- 96qualified to EN ISO 9606-1 and AWS D1.1
- Non-destructive testing
- 100% / 10%visual on every weld, magnetic particle on 10% of structural runs
- Dimensional check
- CMMfirst article per drawing revision, plus sampling through the batch
- Material traceability
- EN 10204 3.1certificate with heat number, filed against the job number
Project values are confirmed in the inspection plan issued with each order.
Certification
Standards we build to
The six a compliance reviewer checks first. Numbers and issuing bodies follow with the quotation.
EN 1090-2
Execution class EXC2, EXC3 on request
EU
ISO 3834-2
Welding quality requirements, full scope
EU / global
EN 10204 3.1
Material certificates, heat number traced
EU / global
ISO 1461
Hot-dip galvanizing, 85 µm minimum
EU / global
ISO 12944 C3–C5
Protective paint systems, 60–120 µm DFT
EU
ASTM B117
480 h neutral salt spray on coated parts
US / global
Enquiry
Send a drawing for quoting
Send the drawing, the standard and the quantity. We quote tolerance, certificates and a date.
- Quotation turnaround2 working days on a complete drawing set
- Sample lead time7–10 working days for one cut or machined part
- DocumentsEN 10204 3.1, dimensional report, WPS, coating report
- DrawingsDXF, DWG or STEP — attach the drawing set to the enquiry