Request A Quote 
11M Polygonal Street Light Pole 4mm Wall Q235B Steel Manufacturer
| Diameters | Top: Ø80mm / Bottom: Ø212mm |
| Wall Thickness | 4.0mm Standard |
| Flange Plate | 400 x 400 x 20mm |
Talk to Our Engineer Now 1. Polygonal Stiffening & High Section Modulus
At 11 meters, dynamic wind loads cause severe aerodynamic drag. The press-braked polygonal geometry acts as a series of longitudinal stiffeners along the Q235B steel shaft. This significantly increases the section modulus compared to standard round tubes, restricting structural deflection within safe engineering tolerances even when mounting heavy dual-outreach arms.
2. Anti-Cupping 20mm Base Flange
The overturning moment at an 11-meter height is immense. To prevent base plate yielding (cupping) and weld-seam fatigue, this model is anchored by an oversized 400x400mm square flange plate with an extreme 20mm thickness. This heavy-duty footprint ensures the lateral forces are evenly distributed into the concrete foundation without localized stress concentrations.
3. Torsional Rigidity for Outreach Arms
Expressway lighting often requires long outreach brackets (2 to 3 meters) extending over the carriageway. Asymmetrical wind loads on these brackets generate high torsional stress (twisting). The wide Ø212mm base tapering to a Ø80mm top tenon provides the necessary torsional rigidity to prevent the luminaire head from rotating out of its designed photometric alignment.
4. Galvanic Cathodic Protection (≥85μm HDG)
To guarantee a 25+ year lifespan without structural repainting, the column undergoes Hot Dipped Galvanizing to deposit a zinc layer of ≥85μm. This provides galvanic cathodic protection—ensuring that even if the outer ≥60μm powder coat is physically compromised by roadway debris, the underlying structural carbon steel will not suffer from sub-surface oxidation.
| Model Reference | DL01-A01A03-039 |
| Pole Height | 11M (Approx. 36.08FT) |
| Structural Material & Yield Strength | Q235B Carbon Steel (Min. Yield 235 MPa) |
| Cross-Section Geometry | Polygonal (High Torsional Rigidity) |
| Top Shaft Diameter | Ø80mm |
| Bottom Shaft Diameter | Ø212mm |
| Structural Wall Thickness | 4.0mm |
| Base Flange Dimensions | 400 * 400 * 20mm (Anti-Deformation Design) |
| Multi-Mounting Capacity | Supports Single/Double Mast Arms up to 3 Meters |
| Electrical Maintenance | Flush Service Door with Internal Earth/Grounding Lug |
| Galvanizing Standard | HDG, Zinc Coating ≥ 85μm (IEC/IECEE Compliant) |
| Powder Coating | ≥ 60μm Thickness (Custom RAL Colors Available) |
Civil Engineering Applications for 11M Polygonal Columns
The 11-meter (36ft) column is engineered specifically for large-scale carriageways and industrial transit routes. Its massive 20mm thick flange and 212mm base diameter provide the payload capacity required for long outreach arms and heavy multi-fixture setups.
Multi-Lane Expressways & Toll Highways
Illumination Strategy: Illuminating 4-to-6 lane expressways requires the light source to be elevated to 11 meters to achieve adequate horizontal lux distribution across the entire right-of-way (ROW) without causing blinding glare to high-speed drivers.
Structural Benefit: Strict highway setback regulations dictate that poles must be placed further away from the carriageway edge. The robust Q235B steel structure safely supports long 2-meter to 3-meter outreach arms, accurately positioning the luminaire directly over the active traffic lanes without structural yielding.
Large-Scale Refineries & Industrial Hubs
Illumination Strategy: Industrial complexes mandate low-maintenance infrastructure that can withstand high levels of airborne chemical pollutants and continuous weathering over decades.
Structural Benefit: The dual-layer HDG (≥85μm) and powder-coated surface chemically seals the raw carbon steel from oxidation. Elevating the fixture to 11 meters also keeps the luminaire safely out of reach of heavy machinery and articulated trucks operating within the facility.
Commercial Shipping & Inland Ports
Illumination Strategy: Inland freight terminals require heavy-duty lighting structures that will not suffer from metal fatigue due to the constant, low-frequency vibrations generated by passing heavy goods vehicles.
Structural Benefit: The massive 400x400x20mm flange plate acts as a supreme shock absorber. It ensures that continuous harmonic vibrations are safely dissipated into the concrete foundation, preventing micro-fractures in the weld seams over a 25-year operational cycle.
