Request A Quote 
7M Polygonal Street Light Pole Q235B Steel HDG 280mm Flange Manufacturer
| Diameters | Top: Ø60mm / Bottom: Ø144mm |
| Wall Thickness | 3.0mm Standard |
| Flange Plate | 280 x 280 x 10mm |
Talk to Our Engineer Now 1. Polygonal Cross-Section Bending Resistance
Manufactured via a heavy-duty press-braking process, the polygonal (multi-faceted) cross-section drastically improves the structural moment of inertia compared to standard cylindrical poles. Fabricated from a single sheet of Q235B carbon steel, this longitudinal folding technique increases the yield strength along the pole’s vertical axis, effectively minimizing aerodynamic vibration and deflection under dynamic wind loads.
2. 144mm Base & 10mm Thick Flange Plate
To safely support the 7-meter elevation, the structural geometry is scaled up. The bottom diameter is widened to Ø144mm, tapering smoothly to a Ø60mm top tenon. The overturning moments generated at the 7M height are transferred to a reinforced 280x280mm square flange plate with an upgraded 10mm thickness. This thick base plate prevents weld-seam fatigue and ensures secure concrete footing.
3. Flush Access Door & Grounding System
Strict adherence to municipal electrical codes is maintained through an integrated, flush-mounted access door. Precision laser-cut to maintain structural integrity, the door provides weather-resistant access to internal wiring components. An internal M8/M10 grounding lug is welded directly inside the cavity, ensuring proper earth bonding to prevent electrical faults in public spaces.
4. IEC Standard HDG & Powder Coating
The bare carbon steel undergoes rigorous chemical cleaning before being submerged in molten zinc (Hot Dipped Galvanizing). This process creates a metallurgical bond with a zinc thickness of ≥85μm. A secondary architectural powder coating (≥60μm) is subsequently applied and heat-cured. This dual-barrier system chemically isolates the steel from road salts, moisture, and UV radiation, guaranteeing over 25 years of operational life.
| Model Reference | DL01-A01A03-035 |
| Pole Height | 7M (Approx. 22.96FT) |
| Structural Material | Q235B Carbon Steel |
| Cross-Section Type | Polygonal (Press-Braked) |
| Top Shaft Diameter | Ø60mm |
| Bottom Shaft Diameter | Ø144mm |
| Steel Wall Thickness | 3.0mm |
| Flange Plate Dimensions | 280 * 280 * 10mm |
| Electrical Maintenance | Integrated Access Door with Grounding Lug |
| Galvanizing Standard | HDG, Zinc Coating ≥ 85μm (IEC/IECEE Compliant) |
| Powder Coating | ≥ 60μm Thickness (Custom RAL Colors Available) |
| Structural Design | Dynamic Wind Load Analysis Certified |
Urban Planning Applications for 7M Polygonal Poles
The 7-meter (23ft) polygonal lighting column provides a critical intermediate height, balancing broad horizontal illuminance for vehicles with glare control for pedestrian zones.
Urban Arterial & Secondary Roads
Illumination Strategy: For 2 to 3 lane urban roadways, a 7-meter mounting height ensures that LED cobra head fixtures achieve optimal light uniformity across the right-of-way (ROW) without generating excessive forward glare.
Structural Benefit: The upgraded 10mm thick flange plate safely handles the increased wind drag of larger road luminaires, while the polygonal shape minimizes visual footprint along modern city streets.
Large Commercial Parking Facilities
Illumination Strategy: Supermarket and retail parking lots require broad area lighting to ensure nighttime safety and security camera visibility.
Structural Benefit: The Ø144mm heavy base diameter allows the pole to securely carry double or triple bullhorn brackets. The integrated access door allows facility managers to quickly service the internal breakers and wiring without specialized equipment.
Industrial Park Perimeters & Walkways
Illumination Strategy: Factory perimeters require reliable, 24/7 boundary lighting that resists damage from heavy truck traffic and industrial emissions.
Structural Benefit: The dual-layer HDG (≥85μm) and powder-coated surface completely seals the raw Q235B carbon steel from oxidation. This ensures a maintenance-free service life exceeding 20 years even in areas with high airborne chemical pollutants.
