U Slotted Steel Strut Channel Factory and Suppliers in China | DIN 6923 Standards
Longze U Slotted Steel Strut Channels are professional-grade modular framing systems engineered for high-performance solar racking and industrial support. Designed to meet rigorous global standards including DIN 6923, ISO 4161, and ASME B18.16.4, these profiles are available in high-strength Q235B Carbon Steel (Hot-Dip Galvanized) and lightweight Aluminum Alloy 6005-T5, ensuring a perfect balance of structural integrity and corrosion resistance for demanding environments.
Featuring precision CNC-punched slot patterns, our support systems allow for rapid, infinite adjustment and seamless integration with international strut accessories. Whether deployed for photovoltaic module arrays, industrial pipe racks, or electrical cable tray framing, these channels are engineered to resist torsional stress and vertical deflection, providing a reliable foundation that ensures 25-year structural stability in the most challenging outdoor conditions.
Detailed Parameters
| Compliance Standards | DIN 6923, ISO 4161, ASME B18.16.4 | Available Materials | Q235B Steel / AL 6005-T5 / SUS 304 |
|---|---|---|---|
| Surface Treatments | HDG (65μm+), Clear Anodized (12μm+), Powder Coated | Aluminum Tensile Strength | ≥ 260 MPa |
| Steel Yield Strength | ≥ 235 MPa | Steel Hardness | 120 - 150 HB |
| Standard Profile Sizes | 41x21mm, 41x41mm, 41x62mm | Typical Wall Thickness | 1.5mm - 3.0mm |
| Max Wind Load | Up to 75 m/s (Deep Profile) | Max Snow Load | Up to 2.2 KN/m² |
Key Advantages
Extreme Corrosion Protection
Hot-Dip Galvanized (65μm+) and Anodized finishes ensure 25-year durability in coastal and industrial zones.
Rapid Installation
Precision CNC-punched slots enable tool-free alignment and fast assembly with international accessories.
High-Load Stability
Engineered to resist torsional stress and vertical deflection for heavy-duty PV solar racking.
Infinite Adjustability
The U-slotted design allows for flexible positioning of brackets and nuts for complex layouts.
Precision Engineering
Strict adherence to ISO 9001 quality control prevents profile deformation and slot misalignment.
Global Compatibility
100% compatible with global strut nuts and clamps, fitting seamlessly into any industrial ecosystem.
Product Gallery
Management Platforms
Material Sourcing
Certified Q235B and AL 6005-T5 alloys for guaranteed mechanical performance.
CNC Precision
Advanced punching technology ensuring zero burrs and perfect nut seating.
Surface Testing
Rigorous salt spray testing (1000h+) and thickness gauging for every batch.
Quality Assurance
5-step QC including Brinell hardness testing and straightness verification.
Secure Logistics
High-strength bundling with edge protectors optimized for international export.
Custom Fabrication
Support for back-to-back, side-to-side, and bespoke punched profile configurations.
Investment Return Comparison
| Comparison Metric | Standard Mill Finish | Longze Premium Strut |
|---|---|---|
| Lifespan (Outdoor) | < 2 Years (Rust Risk) | 25+ Years (HDG/Anodized) |
| Installation Speed | Slow (Manual Drilling) | Ultra-Fast (Pre-Slotted) |
| Load Capacity | Moderate/Unstable | High (Torsional Resistant) |
| Fitment Accuracy | Variable / High Burrs | Precision CNC Fit |
| Maintenance Cost | High (Frequent Coating) | Near-Zero (Industrial Grade) |
Frequently Asked Questions
Hot-Dip Galvanizing (HDG) provides a thick zinc layer (65μm+) ideal for heavy industrial and outdoor steel structures. Clear Anodizing is used for Aluminum 6005-T5, offering a sleek, corrosion-resistant finish perfect for residential and BIPV solar applications.
Yes, our profiles are 100% compatible with DIN 6923 flange nuts and other international strut accessories. We recommend using serrated channel nuts to ensure a vibration-proof mechanical lock.
Selection depends on load requirements: Shallow (41x21mm) is for light supports; Standard (41x41mm) is for general electrical/mechanical framing; Deep (41x62mm) is engineered for high wind and snow loads in PV arrays.
Absolutely. We offer customized configurations, including custom-punched profiles and structural variations such as back-to-back or side-to-side welded channels to meet specific project blueprints.
We use high-grade Q235B steel with optimized wall thickness (up to 3.0mm). Avoiding light-gauge materials ensures the profile maintains its shape even when tightened to the recommended torque of 18-22 N.m.
Every batch undergoes a 5-step QC process, including Webster/Brinell hardness testing, coating thickness verification, and straightness checks to ensure they withstand extreme wind and snow loads.
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