Production line and factory setup overview
This proposal covers a CNC structural-steel fabrication line focused on welded H-beams for industrial halls, warehouses, bridges and commercial structures. The integrated line combines plate handling, CNC cutting, web and flange assembly, submerged-arc welding, hydraulic straightening, drilling, shot blasting, coating preparation and dimensional inspection.
Recommended lowest-entry line configuration Automatic H-beam line for 200-1,500 mm web height, 200-800 mm flange width, 6-30 mm web thickness and 6-15 m workpiece length, supported by CNC drilling and shot blasting.
Production process and implementation sequence
- Plate receipt
- CNC cutting
- Beam assembly
- SAW welding
- Straightening
- CNC drilling
- Shot blasting
- Coating
Products, capacity and market fit
- Industrial buildings and logistics warehouses require standardized structural members.
- Local fabrication reduces delivery time and allows project-specific beam lengths and connections.
- CNC processing improves hole accuracy, weld consistency and traceability.
- The same workshop can support columns, rafters, crane beams and custom steel assemblies.
- Welded H-beam - Custom web and flange sizes - Factories and warehouses
- Structural columns - Base plates and connection holes - Commercial construction
- Crane beam - Heavy-duty welded section - Industrial plants
- Bridge beam components - Project-specific inspection plan - Infrastructure contractors
Core production machinery and line specifications
| Machine / stage | Function / value | Production note |
|---|---|---|
| Plate handling system | Load and position web and flange plates | Magnetic or vacuum lifting |
| CNC flame/plasma cutter | Cut plates and profiles | Nesting software |
| H-beam assembly machine | Center and tack web to flanges | Hydraulic alignment |
| SAW welding gantry | Deposit main longitudinal welds | 0.8-1.5 m/min |
| Flux recovery | Collect and recycle submerged-arc flux | Integrated |
| Flange straightener | Correct welding deformation | Hydraulic or roller |
| CNC beam drill | Drill connection holes | Up to 40-50 mm diameter |
| Band saw | Cut finished beams to length | Automatic feed |
| Shot-blasting machine | Prepare steel surface | Roller conveyor |
| Paint booth | Apply primer or coating | Filtered extraction |
Raw materials, utilities and factory requirements
- Certified structural steel plate
- Submerged-arc welding wire and flux
- Shielding gases and electrodes for secondary welds
- Primer and coating materials
- Bolts, plates and connection components
- Abrasive media for shot blasting
- High-capacity three-phase electrical service
- Overhead cranes and long material bays
- Welding fume and paint extraction
- Compressed air and gas storage
Indicative low-entry investment and implementation plan
These planning ranges prioritize economical machinery, local labor and local civil works. Final pricing follows confirmed capacity, product specification, delivery terms and site conditions.
| Scope | Indicative range | Entry-plan note |
|---|---|---|
| Entry H-beam machinery | US$0.25m-0.7m | Basic Chinese cutting, assembly, welding and straightening |
| Drilling, blasting and coating | US$0.15m-0.5m | Start semi-automatic and upgrade later |
| Local building, cranes and utilities | US$0.15m-0.45m | Economical local steel building; land excluded |
| Freight, installation and training | US$0.08m-0.25m | Local erection team with supplier supervision |
| Working capital | US$0.15m-0.45m | Steel plate, consumables and initial projects |
| Low-entry project total | US$0.78m-2.35m | Manual handling and outsourced coating can reduce entry cost |
Detailed proposal and next step
The proposal contains the complete line flow, machinery scope, raw-material and utility requirements, implementation stages and indicative entry planning. Final configuration follows confirmed products, capacity, site and budget.