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Tension Tower Manufacturer

Tension Towers are critical structural components in overhead transmission line systems, specifically designed to withstand significant longitudinal conductor tension and unbalanced mechanical loads.

As a professional manufacturer of transmission towers, Jiudingli provides high-performance tension tower solutions for global power companies.

Transposition Tower
The Transposition Tower is used in high-voltage transmission lines to swap phase conductor positions and balance electrical parameters.
Strain Tower
The Strain Tower is a self-supporting steel lattice tower used at transmission line tension sections, terminal sections, and angle locations to withstand conductor tension and unbalanced loads.
Sectionalizing Tower
The Sectionalizing Tower is used at transmission line sectionalizing points to provide structural support for conductor separation and mounting of switching equipment.
Heavy Duty Tension Tower
The Heavy Duty Tension Tower is a self-supporting steel lattice tower used in 110kV–800kV transmission lines, installed at tension, terminal, and angle sections to carry conductor tension and
Dead End Tower
The dead end tower is a lattice steel tower that fixes and ends the transmission line at line terminals or angle positions, where all conductor pull force is taken by the tower.
Anchor Tower
The Anchor Tower is a lattice steel tower installed at transmission line angle or terminal points to carry conductor tension and stabilize line direction under high longitudinal load.

Product Specifications

Item	Specification
Tower Type	Lattice Tension Tower
Voltage Range	35kV – 1000kV+
Structure Material	Q235B, Q355B, ASTM Equivalent
Surface Treatment	Hot-Dip Galvanized
Zinc Coating Thickness	≥85μm
Tower Height	15m – 120m
Line Angle	0°–90°+
Wind Resistance	Up to 250 km/h
Seismic Design	Available
Design Standards	IEC, IEEE, EN, GB
Service Life	30–50 Years

Product Features

Extreme Torsional & Longitudinal Rigidity

Reinforced with heavy steel gusset plates and high-grade bracing to withstand unbalanced loads from accidental conductor breakage.

Asymmetric Loading Optimization

Tailored body designs safely distribute stresses caused by ice shedding or localized wind shear.

High-Class Bolted Connections

Grade 8.8 and 10.9 hot-dip galvanized heavy hex bolts prevent joint slippage under permanent line tension.

Pre-Engineered Maintenance Features

Includes step bolts, safety line attachment loops, and insulator assembly plates to simplify stringing and maintenance.

Applications

Transmission Line Angle Points:

Used where transmission lines change direction.

Line Termination Locations:

Supporting conductor dead-end and terminal sections.

River and Highway Crossings:

Providing additional structural strength for large-span crossings.

Mountainous Transmission Corridors:

Ensuring stability in steep and uneven terrain.

Grid Sectionalizing Points:

Used to divide transmission systems into manageable sections.

UHV & EHV Transmission Networks:

Supporting critical backbone transmission infrastructure.

Manufacturing Process

To ensure maximum structural performance and reliability, each tension tower undergoes strict manufacturing procedures:

Engineering Design & Structural Analysis

Hot-Dip Galvanizing

Galvanization Testing

Final Inspection

Packaging & Shipment

Raw Material Inspection

CNC Cutting & Punching

Angle Steel Processing

Welding & Fabrication

Trial Assembly

Quality Management

Quality control for tension structures requires precision. Jiudingli's QA/QC system operates under international standards and includes:

100% Non-Destructive Testing (NDT)

Ultrasonic (UT) and Magnetic Particle (MT) testing are applied to all critical welds on cross-arms and terminal gussets.

Digital Zinc Film Gauge Verification

Multi-point electronic scanning ensures galvanized coating thickness meets or exceeds ASTM A123 / ISO 1461 requirements.

Low-Temperature Toughness Verification

Regular Charpy V-Notch tests confirm that high-tensile steel remains tough and non-brittle in freezing project environments.

Packaging & Transportation

Packaging Methods

Steel bundle packaging
Galvanized surface protection
Component identification labeling
Reinforced export packaging

Transportation Options

Container shipment
Break bulk shipment
Heavy project logistics
Global export delivery

Certifications & Compliance

Our suspension tower systems comply with global transmission engineering standards:

ISO 9001 Quality Management System

ISO 14001 Environmental Management System

ISO 45001 Occupational Safety System

IEC / IEEE Transmission Standards

Third-party inspection support (SGS / BV / TÜV)

Material Test Certificates (MTC)

FAQ

Q:What is the difference between a suspension tower and a tension tower?

A:A suspension tower mainly supports vertical conductor loads, while a tension tower is designed to resist conductor tension and anchor the transmission line.

Q:What voltage levels can your tension towers support?

A:Our tension towers can be designed for 35kV to 1000kV+ transmission systems.

Q:Do you provide angle tower and dead-end tower solutions?

A:Yes. We manufacture angle towers, dead-end towers, anchor towers, and special-purpose transmission structures.

Q:Can you customize towers according to project drawings?

A:Yes. We provide OEM and project-specific manufacturing services according to customer drawings and technical specifications.

Q:What is the expected service life?

A:Typically 30–50 years under normal operating conditions.

Q:Can third-party inspections be arranged?

A:Yes. SGS, BV, TÜV, and other inspections can be arranged before shipment.

Q:What payment methods do you accept?

A:We generally accept T/T, L/C, and other mutually agreed international trade payment methods.

Q:What is the production lead time?

A:Normally 20–45 days depending on tower quantity and project complexity.

Q: Can your tension towers be supplied with uneven leg configurations for mountain slope installation?

A: Yes. We regularly design and produce custom "leg extensions" or variable hill-climbing leg configurations (high-low legs). This allows our towers to anchor securely on steep terrain without requiring extensive hillside leveling or major soil excavation.

Q: How do you guarantee that the holes on your heavy-duty gusset plates align perfectly on-site?

A: All high-stress gusset plates are cut and drilled using high-precision CNC plasma equipment with zero-tolerance programming. Combined with a mandatory 1:1 trial assembly at our factory before galvanizing, we ensure every bolt hole aligns perfectly with our assembly manuals - making field installation smooth and efficient.

We're well-known as one of the leading tension tower manufacturers and suppliers in China. If you're going to buy tension tower made in China, welcome to get quotation and specification from our factory. For price consultation, contact us.

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