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17M Mega Scale Stainless Steel Flag Pole Internal Halyard System
Talk to Our Engineer Now 1. Colossal Sway-Resistant Geometry (Ø216mm Base)
At 17 meters (over 5.5 stories high), mitigating catastrophic aerodynamic whipping is the primary engineering focus. This mega-scale model features an ultra-heavy-duty 3.0mm structural wall thickness. The stainless steel shaft is precision-spun into an aggressive conical taper, expanding to an unprecedented Ø216mm base diameter. This creates a colossal section modulus, ensuring absolute rigidity during severe coastal storms.
2. Mega-Scale Anchoring: 22mm Flange & M24 Bolts
Flying monumental flags at a 55.7-foot elevation generates extreme overturning moments. To completely neutralize foundation shear forces, this mast is anchored by an oversized 400x400mm square flange plate featuring a staggering 22mm thickness. The foundation kit includes four massive M24 anchor bolts with a 1200mm (1.2-meter) embedment depth, permanently locking the structure into the concrete footing.
3. Vandal-Proof Internal Halyard System
High-profile international installations cannot risk flag theft or the severe acoustic disruption (clanking) of traditional external ropes. This system utilizes a state-of-the-art Internal Halyard Mechanism. The stainless steel wire rope is routed entirely through the hollow shaft and managed by a heavy-duty, built-in geared hand crank. Locked securely behind a flush access door, it guarantees tamper-proof security and completely silent operation.
4. Architectural 304/316 SS & Anti-Tangle Finial
Constructed from noble 304 or 316 stainless steel, the mast provides permanent immunity to rust and coastal salinity. To ensure oversized flags remain flawlessly displayed, the top assembly utilizes a 360° smooth-rotating finial. A suspended counterweight rod and precision guide bead apply continuous downward tension, preventing massive flags from wrapping or tangling during turbulent weather shifts.
| Model Reference | DL01-A01G17-012 |
| Pole Height | 17M (Approx. 55.77FT) |
| Structural Material | 304 / 316 Grade Stainless Steel |
| Top Shaft Diameter | Ø80mm |
| Bottom Shaft Diameter | Ø216mm (Mega-Scale Base) |
| Structural Wall Thickness | 3.0mm (Ultra Heavy Duty) |
| Hoisting Mechanism | Internal Halyard with Built-in Hand Crank |
| Halyard Material | Stainless Steel Wire Rope |
| Anti-Tangle Hardware | Counterweight Rod, Guide Bead & 360° Finial |
| Base Flange Dimensions | 400 * 400 * 22mm (Extreme Overturning Resistance) |
| Foundation Bolts | 4 Pieces – M24 (H1200mm Embedment Depth) |
| Surface Finishing | Brushed / Satin / Polished Metallic Finish (Zero Painting) |
Mega-Scale Civic Applications for 17M Heavy-Duty Poles
The 17-meter (55.7ft) architectural specification is the absolute zenith of single-mast commercial engineering. With its extreme 22mm flange and 1.2-meter deep M24 foundation anchors, it is exclusively designed for international borders, national stadiums, and presidential-level plazas.
National Stadiums & Olympic Venues
Display Strategy: Global sporting events require towering, imposing flag arrays. The 17M height ensures massive national flags remain highly visible to tens of thousands of spectators, without being dwarfed by towering stadium grandstands.
Structural Benefit: The extreme 400x400x22mm flange plate and 1200mm deep M24 anchor bolts guarantee that even in a long linear array, every single mast will remain perfectly plumb and geometrically uniform over decades of exposure to severe wind loads.
International Border Crossings & Customs
Display Strategy: Border control zones utilize monumental flags to project national sovereignty and authority. These open terrains are frequently subjected to extreme crosswinds and harsh weather conditions.
Structural Benefit: The 316 stainless steel option provides ultimate immunity to environmental corrosion. The colossally expanded Ø216mm base and 3.0mm heavy-duty wall thickness guarantee the structure will not buckle or fracture under sudden, high-altitude wind shear.
Presidential Palaces & State Memorials
Display Strategy: The highest level of state memorial spaces demands an environment of absolute reverence. Traditional external halyards slap violently against hollow poles in the wind, causing unacceptable acoustic disruption.
Structural Benefit: The internal stainless wire rope system completely silences the hoisting operation. The built-in geared hand crank mechanism is secured behind a locked access door, providing absolute security against unauthorized lowering or tampering.
