Core Steel Material: High-strength structural angle steel (Q235B/Q345B for domestic projects, ASTM A36/A572 Grade 50 for international markets), ensuring consistent load-bearing performance and weldability.
Corrosion Protection: All components undergo full hot-dip galvanization in compliance with ASTM A123 standards, with a minimum zinc layer thickness of 85μm to resist salt spray, humidity, and industrial pollutants—delivering a 30+ year service life.
Fabrication & Compliance: Prefabricated in JiaYao’s in-house facility with ISO 9001 certified processes, all towers meet global design standards including TIA-222-H (telecom tower safety), GB 50017 (Chinese steel structure code), ANSI/AISC 360 (American standard), and Eurocode 3 (European standard).
Assembly Design: Pre-punched holes and high-tensile stainless steel bolts (ISO 898 Grade 8.8) eliminate the need for on-site welding, reducing installation time and ensuring consistent structural integrity.
| Performance Metric | Three-Legged Angular Steel Tower | Four-Legged Angular Steel Tower |
|---|---|---|
| Typical Height Range | 30m – 50m (max 60m for custom projects) | 50m – 120m (customizable to 150m for special projects) |
| Max Antenna Load Capacity | 4 – 6 standard 5G antennas (max 1200kg total load) | 10+ high-capacity antennas + microwave dishes (max 2500kg total load) |
| Wind Resistance | Up to 200km/h (standard configuration) | Up to 250km/h (reinforced design for coastal/typhoon-prone areas) |
| Base Footprint | 2.5m – 4m per side (3 – 14㎡ total area) | 4m – 8m per side (16 – 64㎡ total area) |
| Steel Consumption | 3 – 6 tons (for 30m – 50m height) | 8 – 15 tons (for 50m – 70m height) |
| Installation Time | 3 – 5 days (full on-site assembly) | 7 – 10 days (full on-site assembly) |
Rural Telecom Coverage: 4G/5G base stations in low-population-density rural areas, villages, and agricultural zones, where budget efficiency is a top priority.
Low-to-Medium Voltage Power Distribution: 10kV – 35kV power line support for rural electrification and small-scale industrial projects.
Remote Monitoring: Environmental monitoring, forest fire prevention, and border patrol surveillance in remote, hard-to-reach areas.
Emerging Market Projects: Cost-sensitive deployments in Southeast Asia, Africa, and Latin America, where rapid rollout and low upfront costs are critical.
Urban & High-Capacity Telecom Hubs: Core network base stations with large numbers of antennas, microwave transmission equipment, and 5G macro cells in suburban and urban fringe areas.
High-Voltage Power Transmission: 110kV – 500kV long-distance power line support for national grid projects and renewable energy (wind/solar) farm interconnection.
Extreme Environment Deployments: Coastal areas, typhoon-prone regions, and high-altitude mountainous areas with strong winds and harsh weather conditions.
Tall Tower Requirements: Broadcast towers, long-distance microwave links, and aviation navigation towers requiring heights over 70m.
Unmatched Cost Efficiency: Uses 30 – 40% less steel than a four-legged tower of the same height, reducing manufacturing, transportation, and installation costs for budget-limited projects.
Compact Footprint: Triangular base requires 50% less land area than a square four-legged tower, making it suitable for narrow sites, hillsides, and areas with limited land access.
Rapid Deployment: Lighter weight and fewer components cut installation time by nearly half, enabling faster network rollout for time-sensitive projects.
Aerodynamic Design: Triangular cross-section reduces wind drag by 15% compared to square four-legged towers, delivering reliable performance in moderate wind environments.
Superior Load & Height Capability: Four-point support system enables higher vertical loads and greater height potential, accommodating large numbers of antennas and heavy transmission equipment.
Enhanced Stability & Torsion Resistance: Square lattice frame minimizes tower twist and deflection under wind load, meeting the strict 0.5° torsion limit for sensitive microwave antennas.
Extreme Environment Adaptability: Reinforced structure withstands higher wind speeds, seismic activity, and ice loads, making it the only viable option for harsh climate regions.
Long-Term Scalability: Extra load capacity allows for future equipment upgrades (e.g., 5G to 6G network expansion) without full tower replacement, reducing long-term infrastructure costs.
3 Legged Angular Steel Tower Communication Tower Q235 Steel 25m LTE Network Weatherproof Rural Areas
Site Assessment: For three-legged towers, prioritize flat or gently sloped sites with stable soil; for four-legged towers, conduct geotechnical surveys to design reinforced foundations for high wind and heavy load conditions.
Foundation Design: Three-legged towers use three independent concrete pile foundations; four-legged towers require four gravity-based or pile-driven foundations, with depth adjusted to soil bearing capacity.
Assembly Process: Follow JiaYao’s step-by-step assembly manual, tightening bolts to specified torque values and verifying tower verticality (max deviation ≤ 1/1000 of tower height) before equipment installation.
Quarterly Inspections: Check bolt tightness, cross-brace integrity, and antenna mount stability for both tower types, with extra focus on wind-facing components in high-wind areas.
Annual Corrosion Checks: Inspect galvanized surfaces for damage or rust, touching up affected areas with zinc-rich paint to maintain corrosion protection.
Bi-Annual Load Assessments: For four-legged towers with heavy antenna loads, conduct structural load tests every 2 years to ensure compliance with safety standards.
5-Year Full Structural Audit: Perform non-destructive testing (NDT) on welds and critical load-bearing components to identify potential fatigue or damage.
