Qingdao Ruigang Steel Structure Co., Ltd. sales3@ruiganggroup.com 86--13370850031
Product Details
Place of Origin: China
Brand Name: RG_STEEL
Certification: SGS, BV,ISO
Model Number: RG_STEEL
Payment & Shipping Terms
Minimum Order Quantity: 199 Square Meter
Price: USD30-USD99 Per Square Meter/ Negotiable
Packaging Details: As request
Delivery Time: 30 Days
Payment Terms: L/C,T/T,Western Union
Supply Ability: 19999 Square Meter Per Month
Certificates: |
SGS/Ce/ISO |
Surface: |
Galvanize Or Painted |
Color: |
Client's Request |
Technician: |
Free Technical Support |
Cost: |
Cost-effective |
Advantage: |
Lightweight |
Origin: |
China |
Application: |
Industrial Pre Engineered Metal Buildings |
Aesthetics: |
Modern/Contemporary |
Lifespan: |
More Than 50 Years |
Certificates: |
SGS/Ce/ISO |
Surface: |
Galvanize Or Painted |
Color: |
Client's Request |
Technician: |
Free Technical Support |
Cost: |
Cost-effective |
Advantage: |
Lightweight |
Origin: |
China |
Application: |
Industrial Pre Engineered Metal Buildings |
Aesthetics: |
Modern/Contemporary |
Lifespan: |
More Than 50 Years |
Heavy Industrial Steel Frame Factory Buildings offer resilient, cost-effective infrastructure for manufacturing operations, heavy repair shops, and industrial logistics hubs. Engineered and manufactured by Qingdao Ruigang Steel Structure Co., Ltd., each facility incorporates certified high-grade structural steel treated with multi-coat industrial primers or heavy-duty thermal galvanizing. Designed to withstand extreme weather, dynamic crane oscillation, and continuous operating stress, our prefabricated bolt-together frameworks significantly reduce jobsite construction schedules and lifetime upkeep expenses.
| Items | Detailed Specifications |
|---|---|
| Main Steel Frame(Column+Beam) | Q235,Q345 Welded H Section Steel |
| Secondary Frame | Purlin: Q235 C and Z purlin |
| Bracing: Q235 Round Bar,Angle Steel,Steel Pipe | |
| Roof and Wall | Insulation: EPS/Fiber glass wool/Rock wool/PU |
| Sheeting: PPGI single Sheet | |
| Design Standards | GB/T, AISC, Eurocode, or Local Building Codes Compliance |
| Accessories | Windows: Aluminum Alloy /PVC Window,etc. |
| Doors: Sliding/swing sandwich panel door/Roll-up Door | |
|
Draining system: Stainless/PPGI single sheet gutter+ PVC pipe |
|
| Anti-rust options |
Anti-rust painting(Alkyd/Epoxy) or Galvanized |
Advanced Workshop Equipment: CNC multi-head flame and plasma cutters, automated submerged arc welding (SAW) stations, hydraulic H-beam straighteners, and high-pressure shot-blasting chambers.
Global Code Compliance: Manufacturing processes conform to ISO 9001 quality management benchmarks, AWS D1.1 structural welding protocols, and European EN 1090-2 (CE mark) execution specifications.
Complete 3D Structural Modeling: In-house technical specialists utilize Tekla Structures and AutoCAD software to produce full-scale 3D models, precise joint details, and stress calculations for heavy crane operations.
Streamlined Container Logistics: Direct access to Qingdao Port enables optimized container packing (40HQ / Open Top / Flat Rack), safeguarding long members against deformation and lowering sea freight overhead.
Strict Quality Verification: Every structural package undergoes shop trial fitting, non-destructive ultrasonic weld inspection (UT), and micrometric paint/zinc layer thickness audits before departure.
| Region / Country | Project Scope | Building Dimensions | Wall & Roof Cladding System | Structural & Engineering Highlights |
| West Africa (Ghana) | Agricultural Commodity Processing Plant | 12,000 m² (Clear Span 30m) | Polyurethane (PU) insulated sandwich panels. | High-volume roof ventilation monitors engineered to optimize interior cooling in humid tropical conditions. |
| East Africa (Kenya) | Heavy Equipment Service Workshop | 8,500 m² (Multi-span with Cranes) | Profiled steel wall cladding with integrated crane runways. | Reinforced column brackets engineered to support 15-ton overhead traveling cranes for machinery overhauls. |
| Southern Africa (Zambia) | Mining Equipment Maintenance Shed | 6,200 m² (12m Eave Height) | High-durability Q355B frame with anti-corrosion coating system. | Heavy-gauge diagonal bracing matrix designed to handle high-altitude wind shear and severe thermal shifts. |
| North Africa (Algeria) | Building Materials Production Facility | 15,000 m² (2x24m Double Span) | Galvanized frame with corrugated steel sheets and rockwool insulation. | 100% bolt-connected structural framework meeting Eurocode 3 specifications for fast field assembly with zero jobsite welding. |
Column-Free Floor Area: Clear-span designs (up to 36m wide without internal columns) accommodate flexible assembly lines, conveyor systems, and heavy forklift transport lanes.
Built-In Crane Support: Pre-engineered bracket supports and crane runway girders safely carry overhead bridge cranes ranging from 5 to 50+ tons.
Seismic & Wind Shear Resistance: Custom X-bracing frameworks dissipate dynamic lateral forces, engineered to withstand wind speeds up to 160 km/h in full compliance with AISC 360 and Eurocode 3 standards.
High-Performance Surface Finishes: Structural steel members undergo shot-blasting to Sa 2.5 standards followed by multi-coat epoxy zinc-rich primers and polyurethane topcoats, or hot-dip galvanizing per ISO 1461.
Energy-Efficient Building Envelope: Premium insulated sandwich panel options (PU, Rockwool, EPS) or single-skin color-coated steel sheets help regulate indoor temperatures and lower utility expenses.
Factory-Prepped Components: Structural columns, rafters, purlins, and gusset plates are factory-cut, pre-drilled, and tagged for quick field identification.
Zero Jobsite Welding Required: Field erection relies entirely on high-strength Grade 8.8 / 10.9 structural bolts, eliminating the need for certified field welders or specialized weld testing.
Accelerated Project Schedules: Offsite prefabrication reduces field installation time by up to 50% compared to traditional concrete construction methods.
Our structural steel factory designs integrate essential functional features:
Continuous Roof Ridge Ventilators & Air Intake Louvers
Translucent Polycarbonate Skylight Panels for Daylight Optimization
Mezzanine Flooring Systems for Executive Offices & Storage
Industrial Roll-Up Doors and Exterior Canopy Overhangs
OSHA-Compliant Safety Access: Continuous vertical access ladders fitted with safety cages, rest platforms, and roof perimeter handrails.
High-Capacity Drainage Systems: Heavy-gauge galvanized color-steel gutters and steel downspouts engineered for heavy rainfall runoff.
Manufacturing & Industrial Processing: Assembly plants, food processing facilities, textile mills, and plastics production.
Heavy Machinery Workshops: Equipment repair facilities, vehicle assembly lines, and fabrication yards.
Industrial Logistics & Warehousing: High-bay distribution centers, raw material storage, and bonded warehouses.
Mining & Resource Operations: Mineral processing plants, maintenance sheds, and bulk material storage facilities.
Q1: You are manufacture factory or trading company?
We are direct manufacture factory, located in Qingdao, China, very close to Qingdao port. we have strictly quality management system,professional design team, strong production capacity and rich manufacturing experience.
Q2: How about your quality control?
1)we only cooperate with high-quality raw material suppliers with strength and reputation, and our quality inspection department will conduct
100% strict testing on the raw materials before entering our factory.
2)our workers are all certified and regularly assessed, In this way, we can guarantee the production quality.
3)During the production process, we have three parts: self-inspection, mutual inspection, and workshop inspection. Only qualified product can move to next step.
4)Before delivery, inspection working will check everything with delivery list, to ensure that we send you every items and you can install it locally.
Q3: What's the delivery time?
Usually 30 days. Don't worry about the delivery time at all, we have perfect management plan for each project, then deliver to you on time.
Q4:Do you offer service for installation?
Yes,But we will provide very detailed installation drawings and videos. Generally, you can install it locally,they are all prefabricated and bolted.
Otherwise , we can also send engineer for guiding installation.
Q5:What's the payment term?
We have two payment terms.
1)30% advance payment before producing by T/T, and 70% balance by T/T before shipping.
2)100% irrevoable L/C
Q6:How to get a fast quotation?
Please send us your project preliminary drawing, then we would quote you accordingly in 2days. Or we confirm several questions with you, then do quotation list with details for you timely.
Q7:Is your price competitive compared with other companies?
We are direct factory, yes, it`s competitive, price and quality are guaranteed.
Production Process
![]()
![]()
Packing & Loading:
![]()
Our Steel Structure Fabricaiton Factory:
![]()
![]()
![]()
![]()
Certification
![]()
Product Attributes
![]()
![]()
![]()