Tianjin Jintong Power Iron Tower Manufacture Co., Ltd.
Tianjin Jintong Power Iron Tower Manufacture Co., Ltd.
13821566236@163.com

What Is a Tubular Tower?

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    A tubular tower is a high-strength, hollow steel structure composed of multiple conical or cylindrical sections joined by flanges or slip joints. It is designed to support heavy loads — such as communication antennas, power transmission lines, wind turbines, or lighting systems — while providing excellent aerodynamic performance and structural stability.

    Compared to lattice towers, a tubular tower offers superior aesthetics, reduced maintenance, and better resistance to environmental factors such as wind, ice, and corrosion. These advantages make it a preferred choice in telecommunication, power transmission, wind energy, and lighting applications.


    What Is a Tubular Tower?


    Structure and Design of a Tubular Tower

    A typical tubular steel tower consists of three to five tapered segments, fabricated from high-grade rolled steel plates that are welded, shaped, and joined together to form a seamless conical structure.

    Key Structural Components:

    • Base Plate: Anchored to the foundation using high-strength bolts

    • Flange Connections or Slip Joints: Provide mechanical strength between sections

    • Access Doors and Ladders: Allow maintenance and cable routing inside the tower

    • Internal Cable Raceway: Protects power and signal cables from weather exposure

    • Lightning Protection and Earthing System: Ensures operational safety


    Design Characteristics:

    • Heights range from 15 to 120 meters, depending on the application

    • Cross-section typically circular or polygonal (8, 12, or 16 sides)

    • Designed according to IEC, TIA-222, or GB/T standards

    • Structural analysis includes wind load, seismic load, and dynamic vibration calculations


    Types of Tubular Towers

    Depending on the industry and functional requirement, steel tubular towers can be classified into several types:

    1. Communication Tubular Tower

    Used for supporting antennas, microwave dishes, and cellular base stations.

    • Clean design suitable for urban environments

    • Internal cabling protects against weather

    • Low maintenance compared to lattice towers

    2. Power Transmission Tubular Tower

    Employed in power lines, especially for urban and coastal projects where space or aesthetics are important.

    • High mechanical strength for heavy conductor loads

    • Resistant to corrosion and bird nesting

    • Easier to inspect and maintain

    3. Wind Turbine Tubular Tower

    A crucial component in wind energy systems, supporting nacelles and blades.

    • Height: 60–140 meters

    • Fabricated with thick steel plates (up to 60 mm)

    • Designed for fatigue resistance and dynamic stability

    4. High Mast or Lighting Tubular Tower

    Used for large-area illumination such as airports, seaports, or highways.

    • Hollow tapered shape allows internal lifting system

    • Smooth surface reduces wind drag and dirt accumulation


    Advantages of Tubular Towers

    1. Aerodynamic Efficiency

    The circular or polygonal shape minimizes wind resistance, reducing dynamic stress and vibration.

    2. Aesthetic Appearance

    Sleek, modern design blends well with urban landscapes — often preferred over lattice towers for city installations.

    3. Corrosion Resistance

    Manufactured from hot-dip galvanized steel, often with optional polyurethane or epoxy paint for coastal protection.

    4. Space and Maintenance Savings

    A single compact base requires minimal land area, ideal for urban and industrial zones. Internal access also protects maintenance staff and equipment.

    5. Long Service Life

    With proper design and galvanizing, service life typically exceeds 30 years with minimal upkeep.

    6. Reduced Electromagnetic Interference

    The closed steel body provides natural shielding, reducing radio frequency interference in telecommunication applications.


    Manufacturing Process of Tubular Towers

    At Jintong Towers, the manufacturing of tubular towers follows a precise and standardized process to ensure safety, accuracy, and durability.

    1. Raw Material Preparation

    • Steel plates sourced from certified mills (Q345B, Q420, or S355)

    • Ultrasonic inspection to detect internal defects

    2. CNC Cutting and Bending

    • Plates cut into conical shapes using CNC plasma cutters

    • Rolled into taper using automatic bending machines

    3. Submerged Arc Welding (SAW)

    • Automated welding ensures full penetration and consistent quality

    4. Flange and Accessory Assembly

    • Flanges, ladders, and platforms welded to design specifications

    5. Surface Treatment

    • Hot-dip galvanizing (zinc coating ≥85μm) to prevent rust

    • Optional powder coating for color or extra protection

    6. Quality Inspection

    • Dimensional and coating thickness testing

    • Trial assembly before shipment

    7. Packaging and Delivery

    • Modular sections packed with identification marks for easy field installation

    Every step follows ISO 9001:2015, ISO 14001, and ISO 45001 quality management standards.


    Applications of Tubular Towers

    Tubular towers are highly versatile and used across multiple industries:

    IndustryApplication

    Telecommunication

    Cellular base stations, microwave links, and broadcasting

    Power Transmission

    110kV–500kV lines, urban distribution systems

    Wind Energy

    Onshore and offshore wind turbine supports

    Lighting Infrastructure

    High masts for ports, highways, and sports arenas

    Security and Surveillance

    Camera and radar installation towers


    Design Standards and Engineering Codes

    Professional tubular tower design adheres to strict international standards:

    • IEC 60826: Design of overhead transmission structures

    • TIA-222-H: Communication tower standard

    • GB/T 2694: Chinese steel tower design code

    • AWS D1.1: Welding standard for structural steel

    • ISO 1461: Hot-dip galvanizing requirements

    Engineering considerations include:

    • Wind pressure up to 60 m/s

    • Seismic intensity up to 9 degrees

    • Fatigue life exceeding 25 years under cyclic loading


    Tubular Tower vs. Lattice Tower

    FeatureTubular TowerLattice Tower

    Structure

    Closed steel sections

    Open truss framework

    Aesthetics

    Sleek, modern appearance

    Industrial look

    Wind Resistance

    Low drag coefficient

    Higher drag

    Maintenance

    Internal access, easy

    Exposed, harder to clean

    Weight

    Heavier

    Lighter

    Cost

    Slightly higher initial cost

    Lower initial cost

    Durability

    30–50 years

    20–30 years

    In urban or coastal areas, tubular towers are generally preferred for their visual appeal, long lifespan, and better corrosion protection.


    Inspection and Maintenance

    To ensure safe, long-term operation:

    • Inspect anchor bolts annually

    • Monitor weld joints and flange connections for fatigue

    • Recoat galvanizing if corrosion is detected

    • Perform ultrasonic testing every 5 years for wind turbine towers

    Regular inspection reduces the risk of structural degradation and extends service life.


    Why Choose Jintong Towers for Tubular Towers

    Jintong Towers is a leading manufacturer and exporter of tubular towers, offering custom-engineered solutions across power, communication, and renewable energy sectors.

    Our Core Advantages:

    • Decades of experience in tower and pole fabrication

    • Advanced CNC rolling, welding, and galvanizing facilities

    • Customized design per IEC, GB/T, or client specifications

    • In-house quality inspection and testing laboratories

    • Efficient logistics for global shipping and installation support

    Our Commitment:

    From design to delivery, we provide reliable, cost-effective, and durable steel tower solutions that meet international safety and performance standards.


    Conclusion

    A tubular tower represents the evolution of steel tower engineering — combining strength, durability, and aesthetics in a single structure. Its aerodynamic performance, corrosion resistance, and low maintenance requirements make it an ideal choice for modern telecommunication, power, and renewable energy projects.

    With deep manufacturing expertise and global project experience, Jintong Towers delivers high-quality tubular towers tailored to diverse environments and technical demands — helping customers build efficient and sustainable infrastructure worldwide.


    Frequently Asked Questions (FAQ)

    1. What materials are used to manufacture tubular towers?

    Typically, high-strength low-alloy steels such as Q345B, Q420, or S355 are used for superior load capacity and corrosion resistance.

    2. How tall can a tubular tower be?

    Tubular towers are commonly 20 to 120 meters tall, depending on application (telecom, power, or wind).

    3. How are tubular tower sections joined?

    Sections are connected using flanged bolts or slip-fit joints, ensuring structural integrity and easy on-site assembly.

    4. What surface treatment ensures durability?

    All towers undergo hot-dip galvanizing per ISO 1461, with optional painting for extended corrosion protection.

    5. Why choose tubular towers over lattice towers?

    They offer better aesthetics, lower maintenance, and higher resistance to wind and corrosion, especially in coastal or urban environments.

    References