ZSJH
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ZSJH provides CNC Cutting for Steel Building Frame Components, supplying labeled steel plate profiles or blanks for beams, columns, braces and connections after material and process review. The service coordinates drawing revisions, part quantities, cutting geometry and downstream fabrication. It covers cut material for industrial building frames; drilling, machining, finished plate fabrication and welded assemblies are separately defined scopes.
Item | Specification |
Digital geometry | DWG/DXF with units and scale confirmed; a dimensioned PDF for reference. For mm drawings, use a confirmed 1:1 profile. |
Thickness and grade | Identify material per part. Example BOM entries of 8 / 12 / 16 / 20 mm are ordering examples, not a guaranteed cutting range. |
Profile details | Outer contour, internal cut-outs, hole details and any requested bevels; separate cut lines from reference lines. |
Acceptance | Specify dimensional tolerances, edge condition, inspection and machining allowance where needed. |
Batch identification | Part mark, drawing revision, quantity and grouping for downstream assembly. |
Part types | Web/flange blanks for built-up members, stiffeners, gussets and base/connection plate profiles, as shown on approved drawings. |
Item | Specification |
Plasma cutting | Consider plate thickness, feature size and edge requirements; holes may require a separate finishing operation. |
Oxy-fuel cutting | Consider suitability for the specified steel, thickness and profile; thermal effects and subsequent processing must be reviewed. |
Additional operations | Critical holes, finished bearing surfaces and specified weld bevels are quoted separately where required. |
4 Edges, bevels and connection holes
The smallest features, plate thickness and required fit influence the processing route. Thermal cutting of a profile does not automatically produce a finished bolt hole or a machined bearing face. Specify hole diameters/tolerances and any drilling or machining separately. For requested bevels, show angle, root face, direction and machining allowance where required; the cutting route is reviewed before quotation. Remove specified dross and burrs, and agree whether the cut edge is ready for subsequent fit-up or needs further preparation. Welding codes and weld inspections apply only to separately agreed downstream welding.
Drawing and revision review → contour validation and nesting → material identification → approved cutting route → edge cleaning and dimensional checks → part marking and batch packing. Revised drawings are approved before reprogramming or production.
Inspect overall dimensions, contours, openings, specified bevels and edge condition against the agreed tolerance and quality basis. Check part count and labels against the BOM. Material grade and thickness identification are maintained through the cutting batch; the agreed handover may include material certificates, dimensional/edge inspection records and a part-mark packing list. Protect thin or projecting profiles against bending during handling and pack parts in groups suitable for downstream fabrication.
Can a building span define a cut part?
No. A 6 m eave height, 6 / 9 / 12 / 18 m column grid or span of 20 m and above describes a building; each cut part still needs its own approved dimensions, grade and thickness.
Can a photograph be the production file?
It can support an enquiry, but a dimensioned approved profile is needed.
Are all holes thermally cut?
The route depends on hole quality and fit requirements. Are welding and painting included? Only when separately listed and reviewed.
If necessary, please contact ZSJH. We will provide you with a one-stop service.