OEM/ODM Prefab Steel Workshop Factory & Supplier

To calculate optimal steel tonnage without over-engineering, our structural team requires: (1) Building dimensions (length, clear span width, and eave height); (2) Overhead crane requirements (lifting tonnage, hook height, travel limits); (3) Site climatic loads (wind speed in m/s or mph, ground snow load in kN/m², and seismic acceleration zone); and (4) Thermal envelope preferences (insulated sandwich panel thickness vs. single-skin sheet). We return full 3D layout concepts and preliminary load calculations within 48 to 72 hours.

The core selection is driven by fire codes and thermal requirements. EPS is the most economical solution for dry agricultural storage and light workshops where fire separation is not critical. Polyurethane (PU/PIR) offers the highest thermal efficiency (R-value ≥ 7.2 per inch), making it the primary choice for cold storage, pharmaceutical warehousing, and air-conditioned facilities. Rock Wool is non-combustible (Class A1), delivering up to 4 hours of fire resistance and sound dampening—essential for heavy manufacturing, power stations, and facilities with strict safety codes.

For standard C2/C3 environments, we apply automated centrifugal shot blasting to ISO 8501-1 Sa 2.5, followed by a 2-coat or 3-coat epoxy zinc-rich primer and polyurethane topcoat (total DFT 100–140μm). For coastal, offshore, or high-humidity tropical zones (C4/C5 marine environments), we provide Hot-Dip Galvanizing in accordance with ASTM A123 / ISO 1461 with average zinc coatings exceeding 85μm (610 g/m²), delivering 30+ years of maintenance-free service.

Our global engineering team designs in strict compliance with the client's local building authority. Common engineering standards include: US Standards (AISC 360 for structural steel, AISI S100 for cold-formed steel, MBMA for metal building systems, and ASCE 7 for load combinations); European Norms (Eurocode 3 / EN 1993 for steel structures); British Standards (BS 5950); and Australian Standards (AS 4100). All fabrication welder qualifications and procedure specifications follow AWS D1.1.

Steel frame logistics require careful cubing to minimize shipping freight costs. Primary tapered H-columns and rafters are engineered to nest efficiently inside 40ft High Cube (40'HC) shipping containers or onto 40ft Flat Racks for extra-large portal arches. Secondary purlins (C/Z sections) are nested in compact bundles with steel-banding and lifting slings. Cladding panels are protected with surface poly-film, edge guards, and wooden skids. Every crate includes a complete packing list with barcode tags matching the erection drawings.

Yes. Through our integrated design and construction team, we supply foundation reaction diagrams (including shear, axial, and moment loads at baseplates) and concrete anchor bolt placement drawings. For regional projects, we execute the full turnkey package: site earthworks, reinforced concrete (RCC) footings, slab construction, and steel erection. For export clients, we send detailed foundation calculation sets and anchor bolts ahead of time, allowing your civil crews to cast the slab before the steel framing containers arrive on site.

We regularly engineer factory workshops with overhead traveling crane bridges from 5 tons up to 50 tons. Built-up structural steel columns are fabricated with reinforced stepped brackets (haunches) or dedicated crane columns to support the runway beams. We supply the complete crane system: runway girders, QU70/QU80 steel rails, surge bracings, high-tensile clamp fasteners, end stops, and electrification busbars, all engineered to meet CMAA 70/74 and DIN 4132 deflection limits (L/600 to L/800).

A standard 2,000m² to 10,000m² prefabricated workshop follows a reliable schedule: (1) Preliminary 3D modeling and calculation approval: 7–10 days; (2) Detailed shop drawings and component nesting: 5–7 days; (3) Steel cutting, robotic welding, shot blasting, and painting: 15–20 days; (4) Insulated sandwich panel production: concurrent; (5) Final trial assembly, NDT inspection, and container stuffing: 4–6 days. Average factory dispatch is completed within 30 to 45 calendar days after drawing sign-off.