Qingdao Ruigang Steel Structure Co., Ltd. sales3@ruiganggroup.com 86--13370850031
Product Details
Place of Origin: Shandong, China
Brand Name: RG_STEEL
Certification: SGS, BV,ISO
Model Number: RG_STEEL
Payment & Shipping Terms
Minimum Order Quantity: 200 Square Meter
Price: USD30-99 Per Square Meter/ Negotiable
Packaging Details: As request
Delivery Time: 30 Days
Payment Terms: L/C,T/T,Western Union
Supply Ability: 20000 Square Meter Per Month
Grade: |
Q235 / Q355 / Q235B / Q355B |
Connection Type: |
Bolted, Welded |
Application: |
Industrial And Commercial |
Type: |
Prefab Steel Structure Building |
Design Standard: |
AISC, MBMA, AWS, ASTM |
Wind Load: |
Up To 300 Km/h |
Surface Treatment: |
Hot-dip Galvanization, Paint Coating |
Wall Cladding: |
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding |
Grade: |
Q235 / Q355 / Q235B / Q355B |
Connection Type: |
Bolted, Welded |
Application: |
Industrial And Commercial |
Type: |
Prefab Steel Structure Building |
Design Standard: |
AISC, MBMA, AWS, ASTM |
Wind Load: |
Up To 300 Km/h |
Surface Treatment: |
Hot-dip Galvanization, Paint Coating |
Wall Cladding: |
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding |
Steel Structure Factory represents the structural standard for high-output manufacturing lines, industrial processing, and automated assembly plants. Built around a premium, high-strength structural steel framework, these industrial facilities deliver an exceptional strength-to-weight ratio that outclasses traditional reinforced concrete options. This design edge allows for massive, column-free interior spaces, giving developers complete freedom to layout assembly tracks, manage dynamic forklift paths, and install large-capacity overhead traveling cranes. As global markets transition toward sustainable, rapid-assembly infrastructure, Ruigang’s pre-engineered manufacturing plants deliver a fire-resistant, seismic-stable, and durable physical asset.
| ITEMS | SPECIFICATION |
|---|---|
| Main Steel | Q355, Q235, Q355B, Q235B, etc. |
| Anti-rust protection | Hot-dip galvanized or anti-rust painting |
| Purlin and girts | Cold-rolled C or Z steel, Q355 or Q235 |
| Column & Beam | Welded or Hot rolled H-section |
| Connection method of steel structure | Welding connection or bolt connection |
| Wall & Roof | Sandwich panel or steel sheet. |
| Door | Rolled up door or Sliding door |
| Window | Plastic steel or Aluminum alloy window |
| Surface | Hot-dip galvanized or painted |
| Crane | 5MT, 10MT, 15MT, and more |
At Ruigang, factory structural layouts are carefully configured alongside your operational requirements to optimize material handling paths and production efficiency.
Tekla 3D Workflow Detailing: We employ Tekla Structures for high-fidelity 3D modeling of the factory frame. This ensures a "zero-clash" design where every primary column, overhead crane beam, bracing, and truss node aligns perfectly on-site, eliminating field corrections and accelerating the erection timeline.
Global Code Calibration: Our technical department designs components to satisfy strict localized regulations, including ASTM (US), Eurocode, and GB (China). Every factory framework is calculated to safely withstand specific wind velocities, regional heavy snow loading, and seismic hazards.
Dynamic Heavy-Load Simulations: For production facilities integrating overhead traveling cranes (5T up to over 50T capacities), we run detailed stress analysis to ensure that primary support columns and runway girders effortlessly dampen continuous operational vibration.
Our industrial production lines execute high-precision fabrication methods on heavy structural steel elements, keeping tolerances within strict millimeter scales.
Multi-Axis CNC Processing: We utilize automated CNC cutting, drilling, and coping lines to process massive built-up H-beams, box columns, and lattice trusses, ensuring perfect alignment across the construction grid.
High-Integrity Fusion Welding: Critical structural joints and crane-bearing components are joined via Submerged Arc Welding (SAW) and MIG shielded welding, delivering uniform, deep-penetration welds built to sustain continuous industrial loads.
Mechanical Shot Blasting (Sa2.5 Grade): Every single steel element passes through a multi-wheel centrifugal Shot Blasting system to achieve an Sa2.5 grade surface cleaning. By completely removing mill scale, oxidation, and rust, this mechanical treatment creates an ideal surface profile for maximum adhesion of specialized industrial primers, fireproof coatings, or hot-dip galvanization.
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Safety and compliance in industrial construction are non-negotiable. Ruigang’s manufacturing protocols are verified through strict international third-party benchmarks.
International Framework Certifications: Our production facility operates under ISO 9001:2015 quality directives, and our structural components carry the CE Mark, confirming full compliance with global safety, health, and performance directives.
100% Traceable Steel Grades: Every single column and beam is rolled from certified Q355B or Q235B high-tensile steel, backed by authentic Mill Test Certificates (MTC).
Non-Destructive Testing (NDT): 100% of critical load-bearing and crane runway welds undergo thorough Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) by certified inspectors to guarantee flawless subsurface fusion.
Factory Alignment Pre-Assembly: Complex multi-member trusses and connection frames undergo routine trial assemblies at our plant to ensure seamless fitment before components are cleared for international dispatch.
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Strategically located near Qingdao Port, Ruigang leverages its geographic advantage to provide efficient, secure, and cost-effective logistics to over 50 countries.
Containerized Volumetric Nesting: Using smart 3D loading software, we optimize the packing of 40' HQ shipping containers, maximizing density and significantly lowering ocean freight costs per square meter.
Industrial Marine Bundling: Structural components are secured using reinforced steel cradles and high-tensile strapping to eliminate maritime shifting, scratching, or bending during ocean transport.
Intuitive Erection Grid Marking: Every individual steel member is stamped with a unique component ID matching the erection drawings, enabling local construction crews to sort, organize, and install the factory system with minimal downtime.
You are manufacture factory or trading company?
As a direct manufacturing facility based in Qingdao, China—just a stone's throw away from the Qingdao Port—we pride ourselves on our stringent quality management system, expert design team, robust production capabilities, and extensive manufacturing experience.
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.
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.
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.
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
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.
Is your price competitive compared with other companies?
We are direct factory, yes, it`s competitive, price and quality are guaranteed.
Qingdao Ruigang Heavy Industry Co., Ltd. is a world-class authority in industrial steel solutions. With thousands of successful projects across 50+ countries, we provide the foundational framework for your long-term business success.