Shandong Xingrui Building Materials Co., Ltd., established in 2007, manufactures American type scaffold frame systems engineered to ANSI A10.8 and OSHA compliance standards. Our door-type scaffolding utilizes Q235 premium steel with 42.4×2.0mm tube specifications, designed specifically for North American construction demands. With a 79,800-square-meter production facility housing 12 welding robots and 6 automatic welding lines, we deliver standardized 1700×1219mm frames featuring superior weld integrity and dimensional precision. Each frame is produced to our ISO 9001, ISO 14001 and ISO 45001 certified process and engineered to fulfil the demanding load-bearing requirements of over 50,000 lbs ultimate capacity, delivering robust, reusable solutions for heavy-duty masonry and high-rise projects in 100+ countries.
The essential strength of our frames resides in precise engineering and material perfection. We use high-tensile Q235 steel processed through cold roll forming equipment and automated welding lines to achieve consistent wall thickness tolerances.
All joints are CO2 shielded welded for enhanced fatigue resistance at header to leg connections. Our connection pin alignment is +/- 0.5mm tolerant. This allows for flawless verticality while stacking multi-story structures. This level of accuracy prevents on-site assembly mistakes that endanger structural safety.
Surface treatments include hot dip galvanised zinc coating more than 65 microns. This provides self-healing corrosion protection for 20+ years, even in coastal or industrial environments. Alternatively, heavy-duty powder coating provides cost-effective external protection for conventional applications.
| Parameter | Specification |
|---|---|
| Standard Size | 1700×1219mm (American Standard) |
| Tube Material | Q235 Premium Steel |
| Outer Diameter | 42.4mm (1.69 inches) |
| Wall Thickness | 2.0mm (0.090-0.120 inches) |
| Load Capacity | >50,000 lbs ultimate load |
| Lock Compatibility | American-style lock pins, diagonal braces |
| Surface Finish | Hot-Dip Galvanization (HDG) / Powder Coating |
| Zinc Coating Thickness | ≥65 microns (HDG option) |
| Compliance Standards | OSHA, ANSI A10.8 |
| Certifications | ISO 9001, ISO 14001, ISO 45001 |
Your project safety depends on rigorous quality verification at every production stage. We implement four critical control checkpoints throughout manufacturing.
Material Traceability begins with steel mill certificates confirming ASTM compliance. Every batch receives documented verification before entering production. Our 180 professional technicians monitor raw material chemistry and mechanical properties in real-time.
Weld Integrity Testing combines destructive break tests with non-destructive ultrasonic examination. We verify 100% penetration at all structural joints. This dual-method approach catches microscopic defects that could lead to field failures.
Dimensional Precision Inspection uses laser measurement systems to verify lock spacing and tube straightness. Our automated quality gates reject any frame deviating from the standard 27.75-inch lock interval or showing coupling misalignment beyond 0.5mm.
Surface Treatment Inspection employs salt spray testing and Elcometer thickness gauges. Each galvanized frame must demonstrate zinc coating uniformity exceeding 65 microns to prevent internal oxidation. This testing protocol ensures your frames withstand decades of outdoor exposure without structural degradation.

Your construction projects demand scaffolding that adapts to specific challenges. Our American type scaffold frame serves three critical roles effectively.
Heavy-Duty Masonry Work benefits from our Mason Frame configuration (5'×5' modules). The reinforced structure supports simultaneous loading of bricks, mortar, and multiple workers across elevated platforms. Integrated ladder rungs provide safe vertical access without additional components.
Urban Facade Restoration Projects utilize Walk-Thru Frame designs (5'×6'4" clearance). This configuration maintains uninterrupted pedestrian traffic at ground level while crews perform stone cleaning or window replacement on upper floors. The rigid geometry prevents lateral movement even when subjected to tool vibration.
Industrial Maintenance Operations require stable platforms in confined spaces. Our frames create cantilevered work areas around curved tank surfaces and irregular structures. The modular design allows rapid reconfiguration as maintenance zones shift, reducing downtime compared to custom-built access solutions.

You need a manufacturing partner with proven capacity and technical depth. Our Rizhao facility combines scale with precision—920 employees operating specialized workshops dedicated to cold bending, welding, forging, and electrostatic spraying.
The investment in automation delivers consistency you can measure. Four cold roll forming lines ensure uniform tube geometry across production runs. Twelve welding robots execute identical weld profiles on every frame, eliminating the variation inherent in manual fabrication.
Our location in Rizhao provides logistical advantages for international clients. The integrated seaport, airport, and rail network enables flexible shipping solutions. We handle large-volume orders—common for projects requiring thousands of frames—with stable lead times and container optimization.
Custom manufacturing capability sets us apart when standard dimensions don't fit your application. Send drawings or samples, and our engineering team develops modified frames that maintain structural compliance while meeting your spatial constraints. This service has supported unique projects across Asia, Europe, Americas, Oceania, and Africa.

Q:What is the difference between a Flip Lock and a C-Lock on frames?
A:A Flip Lock uses a gravity-weighted toggle mechanism enabling fast brace attachment without tools. Workers appreciate the speed during assembly. C-Locks employ a sliding collar design that resists loosening in high-vibration environments, such as sites near heavy machinery or traffic corridors.
Q:Can I mix your frames with other brands on site?
A:While many manufacturers follow the 4-foot or 27.75-inch lock spacing standard, mixing brands introduces liability. Only combine frames when lock types and 1.69" tube OD match exactly. Always have a licensed engineer verify compatibility and confirm the assembly meets OSHA load ratings before use.
Q:What maximum height is safe for tower configurations?
A:OSHA specifies a 4:1 height-to-base ratio for freestanding towers. With proper outriggers and wall ties installed per engineering drawings, the product systems safely reach heights exceeding 125 feet. Always engage a competent person to design tie patterns for your specific structure.
Q:How does Hot-Dip Galvanization compare to Powder Coating?
A:HDG provides inside-and-outside protection with self-healing properties—if scratched, surrounding zinc prevents rust spread. Powder coating is an exterior-only finish offering good aesthetics but can flake under impact. Choose HDG for long-term outdoor exposure, powder coating for budget-conscious short-term projects.
Q:How often should frames be inspected?
A:A competent person must inspect frames before every work shift. Check for bent rungs indicating overload, cracked welds near joints, and pitting corrosion that reduces wall thickness. Replace any frame showing structural damage immediately—repair attempts compromise load ratings and void safety certifications.
Ready to source scaffolding that meets North American standards without costly rectification? Our American type scaffold frame systems ship with full compliance documentation, facilitating smooth customs clearance and site inspections. Contact our technical team at sdxingruiqp@126.com to discuss your project specifications.
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