A 3-Leg Angle Steel Tower is a lattice structure fabricated from hot-rolled steel angle sections (L-profiles), forming a triangular base for stability. Designed for heights of 30–80m, it balances low material costs, simple assembly, and resilience in moderate wind/ice zones.
| Parameter | Specification |
|---|---|
| Typical Height | 30m / 50m / 80m |
| Base Width | 3–6m (triangular) |
| Leg Section | Equal-angle steel (L100×100×10mm to L150×150×12mm) |
| Bracing | Single/double-angle X or K-type |
| Weight (50m) | 5–8 tons |
| Wind Rating | 150 km/h (operational), 180 km/h (survival) |
| Payload Capacity | 1,200–2,500 kg (antennas + microwave + RRUs) |
| Foundation Type |
Isolated concrete footings (2.5m×2.5m×3m deep) |
Design Features
Material Efficiency:
Lower cost vs. tubular steel (20–30% savings)
Simple bolted connections (M20–M30 ASTM A325 bolts)
Fabrication:
Pre-punched holes for field assembly
Hot-dip galvanized (85μm zinc per ISO 1461)
| Aspect | Advantage |
|---|---|
| Stability | Inherent resistance to torsion |
| Foundation Loads | Concentrated at three points (simpler footings) |
| Terrain Adapt. | Tolerates 1.5m elevation difference between legs |
X-Bracing: Standard for heights <60m
K-Bracing: For taller/heavier payloads (reduces unsupported length)
Portal Bracing: At base/platform levels for rigidity
Product Details:
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| Component | Capacity | Mounting |
|---|---|---|
| Sector Antennas | 6–9 (4G/5G) | Top platform (360° ring) |
| Microwave | 2× 0.6m dishes | Side brackets (LoS clear) |
| RRUs | 3–6 units | Mid-platform trays |
| Fiber Tray | 200m capacity | Vertical leg conduit |
| Factor | Angle Steel 3-Leg | Tubular 3-Leg |
|---|---|---|
| Material Cost | 25% lower | Higher (seamless tubes) |
| Assembly Speed | 30% faster (pre-punched holes) | Slower (welding/alignment) |
| Wind Resistance | Moderate (150 km/h) | High (180 km/h) |
| Max Height | 80m | 100m+ |
Package Rederence
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XH Tower Co., Ltd: Building Global Connectivity with Excellence
Established in 2007 and headquartered in Qingdao, Shandong Province, China XH TOWER Co., Ltd is a leading manufacturer specializing in high-quality telecommunication towers, transmission towers, and steel tower components. With over 17 years of industry expertise, we are committed to delivering innovative engineering solutions and superior products that meet global standards, empowering infrastructure development across the world.
