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Lattice Suspension Tower

Lattice Suspension Tower is a self-supporting steel lattice structure designed to carry overhead transmission line conductors along straight paths or at minor deviation angles, maintaining required ground clearance and structural integrity under dynamic tension and climate loads.

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Product Overview

Technical Specifications

Fully compliant with international overhead line design standards (ASCE 10, IEC 60826, ASTM, EN).

Item	Standard Specification	Buyer Options (Full Customization)
Structure Type	Self-Supporting Space Lattice Tower	Body extensions, leg extensions, or unequal leg lengths
Application Line Voltage	110kV up to 500kV+ Transmission Lines	Configuration optimized for single, double, or multi-circuits
Material	Q355B / Q420 / Q235B High-Strength Steel	Graded usage based on leg, bracing, or crossarm stress
Material Equivalent	ASTM A572 Gr. 50/60/65, EN10025 S355 / S420	Tailored to project-specific country standards
Connection Type	Standardized Bolted Assembly	High-strength Grade 8.8 / 10.9 HDG tower bolts & nuts
Surface Treatment	Hot-Dip Galvanized	ISO 1461 / ASTM A123 (80–120 μm)
Design Loading	Dynamic Wind + Ice Load + Intact Conductor Weight	Custom calculated per local weather & broken-wire criteria
Service Life	30+ Years	Engineered for permanent national grid infrastructure

Customization Options

Custom Item	Options
Tower Configuration	Barrel Type, Delta Type, Cathead Type, or Custom Array
Terrain Adaptation	Variable Leg Extensions (Hillside/Uneven Ground Foundations)
Conductor Arrangement	Single / Bundle Conductors (Vertical, Horizontal, or Triangular)
Design Load Criteria	Configured by Local Wind Speed, Ice Thickness, and Broken-Wire Conditions
Auxiliary Equipment	Anti-climbing Devices, Step Bolts, Bird Guards, and Earth-wire Attachments

Manufacturing & Quality Assurance

Advanced CNC punching, drilling, and angle cutting line to ensure precise bolt-hole alignments across complex modular connections.
All welding processes for crossarm brackets and ground plate assemblies adhere to AWS D1.1 / EN ISO 3834 standards with rigorous testing.
100% geometric dimensional verification conducted on template towers before mass hot-dip galvanizing.
Digital gauge testing to verify strict compliance of zinc coating thickness on every component batch.
Full factory prototype trial pre-assembly available to guarantee zero-error field fit-up.

Export Logistics & Component Marking

Indelible Piece Marking: Every steel angle and gusset plate is permanently stamped with a clear code matching the erection drawings for rapid field sorting.
Sea-Worthy Protection: Compactly bundled and strapped with heavy-duty steel bands using wooden skids, burlap, or wrap to protect the zinc finish from deep-sea salt corrosion.
Freight Cost Reduction: Modular member bundles are length-matched for maximum volume density in 40ft HQ containers, slashing loose ocean freight expenses.

Corporate Qualifications & Supply Capacity

Certified Authority: Fully certified under ISO 9001 (Quality), ISO 14001 (Environmental), ISO 45001 (Health & Safety), and CE standards to guarantee compliance with strict global markets.

Industrial Qualification: Proud holder of the Steel Structure Professional Contracting Grade II Qualification, proving our proven expertise in heavy industrial engineering.

Massive Production Capacity: With an annual output reaching 360,000 tons, we provide stable, scalable, and on-time delivery for utility-scale grid projects and global tenders.

Engineering Power: Driven by a dedicated team of 26 certified technical and economic experts, offering precision OEM & ODM services tailored to your national grid blueprint and loading requirements.

Export & Project Support

Available upon request:

Structural calculation and tower optimization reports (PLS-TOWER / STAAD.Pro equivalent)
Approved tower shop, fabrication, and structure foundation drawings
Galvanizing thickness inspection records
Itemized packing lists & container loading diagrams

Material test certificates (MTC EN 10204 3.1)
Tower field erection & line reference guides

FAQ

Q: Can your lattice suspension towers handle line routing over uneven mountain terrains?

A: Yes. Driven by our 26 certified experts and robust OEM/ODM services, we design custom variable leg extensions (unequal leg configurations) to adapt precisely to slope angles, eliminating massive ground leveling costs.

Q: How do you ensure the hundreds of lattice tower components fit perfectly on site?

A: We utilize advanced CNC angle lines for hole placement and perform a full prototype pre-assembly check at our factory before hot-dip galvanization. Combined with our permanent component marking system, on-site contractors can assemble the tower smoothly.

Q: What details are required for an accurate quotation?

A: To provide an accurate quote within 24–48 hours, please supply: Line voltage, tower configuration type, design wind speed, ice loading thickness, conductor size/weight, span lengths, and destination port.

Q: What quality documentation do you supply with the shipment for engineering sign-off?

A: As a CE-certified manufacturer with Grade II Steel Structure Qualification, every export project includes a full quality dossier: Material certificates (MTC EN 10204 3.1), approved shop drawings, structural calculation reports, galvanizing thickness records, and itemized container packing lists.

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