Long Description
We provide professional factory customized service for large heavy duty metal sheet steel structure welding frame fabrication, focusing on high-strength, high-load and long-service-life industrial steel structural parts for global heavy industry customers. With years of heavy sheet metal & steel structure welding experience, we support full customization from drawing design, material selection to finished processing, perfectly meeting all kinds of large-scale equipment support, engineering installation, mechanical rack and heavy load bearing demands.
Adopting high-strength structural steel Q235B/Q355B/S355JR as raw material, we adopt full-penetration heavy duty welding process, with strict stress relief treatment after welding to eliminate internal stress, thoroughly solving deformation and cracking problems under long-term heavy load. Our professional welding team strictly follows AWS D1.1 & ISO 3834-2 international welding standards, ensuring every welding seam is firm, full and qualified, with stable structural performance.
We accept customized processing based on customer drawings, samples or on-site measurement data, supporting precision cutting, bending, drilling, grinding and surface anti-corrosion treatment. From small batch customized prototype to mass industrial production, we carry out full-process quality control and non-destructive testing, delivering sturdy, durable and dimensionally precise heavy steel structure frames, becoming a reliable custom partner for heavy industry, engineering and machinery enterprises.
Key Specifications
| Material | Q235B, Q355B, S355JR high-strength carbon structural steel, galvanized steel (customizable) |
| Product Type | Large heavy duty support frame, equipment base frame, machinery structural frame, engineering steel frame, large rack frame |
| Sheet/Profile Thickness | 5mm–80mm |
| Welding Process | Full-penetration MIG/SAW heavy duty welding, stress relief heat treatment |
| Surface Treatment | Sandblasting, rust removal, primer spraying, powder coating, hot-dip galvanizing (customizable) |
| Load-Bearing Capacity | 500kg–50 tons (customized according to structure & material) |
| Dimensional Tolerance | ±0.2mm–±1mm |
| Custom Type | Full drawing customization, structural optimization, size customization, accessory integration |
| MOQ | 1 PC (supports prototype & mass production) |
| Lead Time | 15–50 days (depends on product size & order quantity) |
| Inspection | Dimensional inspection, non-destructive testing (UT/MT), load-bearing test, stress test |
Features & Advantages
1. Professional factory custom service, flexible design to meet diversified heavy-duty demands
2. High-strength structural steel material, ultra-strong load-bearing, durable and long service life
3. Full-penetration heavy duty welding, strict stress relief, no deformation & no cracking under heavy load
4. Compliance with international welding standards, strict quality testing, stable and reliable performance
5. Full-process customized processing, one-stop solution from design to finished product delivery
6. High-precision size processing, perfect assembly with equipment and engineering structures
7. Multi-type anti-corrosion surface treatment, adapt to harsh indoor & outdoor industrial environments
8. Suitable for large-scale heavy machinery, engineering construction and industrial equipment scenarios
Raw Materials
High-strength carbon structural steel sheet, profile, square tube, channel steel, angle steel
Special high-strength welding wire, anti-corrosion primer, topcoat, galvanized material
Full Fabrication Process Flow
Customer drawing/sample confirmation → Material selection & inspection → Blank cutting & blanking → Precision forming & positioning → Heavy duty welding assembly → Stress relief heat treatment → Precision machining & drilling → Surface anti-corrosion treatment → Full quality inspection → Packaging & delivery
Main Applications
- Large industrial equipment support & base frame
- Engineering machinery & construction machinery structural frame
- Heavy factory production line rack & bearing frame
- Large automation equipment steel structure frame
- Engineering construction steel support & installation frame
- Heavy logistics & warehouse steel bearing frame
- Shipbuilding & port machinery heavy structural parts
Certifications
ISO 9001:2015, ISO 3834-2 Welding Quality Certification, AWS D1.1 Welding Standard
Packaging & Shipping
- Internal: Anti-rust film wrapping, foam buffer protection
- External: Steel frame fixation, plywood wooden case, bulk transportation
- Shipping: Sea/land transportation, support FOB, EXW, CIF trade terms
FAQ
Q: Can you customize extra-large size steel structure frame?
A: Yes, we support customized production of super-large and extra-heavy steel structure frames according to customer drawings.
Q: Do you provide stress relief and anti-deformation treatment?
A: Yes, we conduct professional stress relief heat treatment after welding to ensure long-term use without deformation.
Q: Can you accept non-standard structural customization?
A: Absolutely, we focus on non-standard heavy duty steel structure custom service, supporting drawing & sample customization.
Q: What testing items can you provide for finished products?
A: We provide dimensional inspection, non-destructive testing, load-bearing test and corresponding quality inspection reports.
Product Keywords
Heavy duty steel structure frame, welding frame fabrication, custom steel support frame, large machinery structural frame, high-strength welding frame, industrial equipment base frame, engineering steel structure, factory custom welding frame
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