Main Door Frame

Main Door Frame - Professional Door-Type Scaffolding Core Component

Shandong Xingrui Building Materials Co., Ltd. manufactures the Main Door Frame as the core load-bearing component of door-type scaffolding systems. Engineered from Q235 premium steel with specifications of 1930×914mm, this integrally welded structure utilizes Φ42×2.0mm welded pipe for superior rigidity and vertical load capacity. Since 2007, we have provided scaffolding solutions in over 100 countries from our 79,800 sq. metre production plant, equipped with 12 welding robots and 6 automated welding lines. It is in compliance with ISO 9001, ISO 14001, CE certification requirements. Our product is reusable and customisable with reliable performance for big scale building projects. We guarantee tight quality traceability in every manufacturing with 920 people (including 180 specialised experts).

Superior Structural Design and Load-Bearing Performance

The integrated welding process removes weak connection spots in the goods structure. Our automated welding lines provide a consistent penetration depth, improving the frame’s resilience to deformation under large loads.

The pipe diameter of Φ42×2.0mm is the most appropriate combination of weight and strength. This specification allows for vertical tensions above normal construction limits and allows for easier handling during assembly.

The high tensile strength of Q235 steel extends the life span of your scaffolding system. It is fatigue cracking resistant under repeated stress cycles, which reduces the replacement frequency and the total project costs.

Versatile Compatibility and Assembly Flexibility

The standard 1930×914mm dimensions enable seamless integration with various diagonal braces and foot planks. You can configure scaffolding layouts quickly without custom fabrication delays.

Multiple connection points along the frame accommodate diverse bracing patterns. This flexibility supports both simple and complex scaffolding configurations across different construction scenarios.

The standardized design reduces inventory complexity for rental operations. Your turnover rate improves as the product components remain interchangeable across multiple projects.

Main Door Frame Technical Specifications and Materials

Advanced Manufacturing Process

Our cold roll forming equipment ensures consistent pipe wall thickness throughout each frame section. The 4 sets of specialized machinery maintain dimensional accuracy within strict tolerances.

Robotic welding eliminates human error in joint formation. The 12 welding robots execute programmed patterns that guarantee structural integrity at every connection point.

The electrostatic spraying workshop applies protective coatings uniformly. This corrosion-resistant finish extends the Main Door Frame operational lifespan in harsh weather conditions.

Quality Assurance and Compliance Standards

Real-time tracking systems are used for verification of the quality of raw materials and for the final inspection. Each heat of steel is chemically analysed before going into manufacturing.

Our full traceability system captures the welding settings, coating thickness and dimensional checks for each frame unit. You obtain documents to help project compliance audits.

Our management systems are certified each year by independent certification bodies. Our ISO 9001 and ISO 14001 certifications are testimony to our dedication to quality and environmental responsibility.

Global Application Experience

Construction projects across Asia, Europe, Americas, Oceania, and Africa utilize our scaffolding solutions. The product adapts to varied building heights and architectural requirements in different markets.

High-rise residential developments benefit from the frame's stable load distribution. Commercial infrastructure projects appreciate the quick assembly that accelerates construction schedules.

Industrial facility construction demands robust scaffolding that withstands continuous use. Our frames deliver the durability necessary for extended project timelines while maintaining safety standards.

FAQ

Q：What makes the integral welding superior to bolted connections?

A: Integral welding generates a monolithic structure without mechanical attachments that may loosen over time. This approach removes the stress concentration spots and ensures homogeneous load transmission throughout the whole frame providing long term structural stability.

Q: Do you customise your frames for non-standard scaffold heights?

A: Yes, we can custom produce according to your technical drawings and particular project requirements. Our engineering team evaluates the feasibility and designs frames that are structurally sound and meet your dimensional requirements.

Q：How does the Q235 steel compare to alternative materials for scaffolding frames?

A：Q235 steel has good weldability, good ductility, and is low-cost for construction uses. It provides enough yield strength for scaffolding loads but is still inexpensive for big volume applications compared to higher grade alloys.

Q：How can we maintain these frames to prolong the life?

A：Regular checking of coating integrity, weld sites to avoid accelerated corrosion. Keep it dry between usage and immediately address any surface damage. This will help keep the protective finish in place which protects it from environmental degradation.

Q：Do you provide technical support for scaffold system design?

A：Our technical team assists with configuration planning and load calculation verification. We supply assembly guidance and can recommend optimal component combinations for your specific construction requirements and safety regulations.

Contact Us

Ready to enhance your construction efficiency with reliable door-type scaffolding and Main Door Frame? Contact our export team at sdxingruiqp@126.com for technical specifications, custom quotations, and sample arrangements. Let's build your project success together.