29.63 m Octagonal Steel Pole with Four-Section Slip-Joint Design and Base Flange

Product Overview

This 29.63 m octagonal steel pole is designed for engineered power infrastructure applications requiring a tall steel support structure with a segmented configuration. Manufactured from specified Q500C steel, the pole consists of four sections intended for slip-joint assembly, a base flange connection, and a hot-dip galvanized surface finish.

With a stated unit weight of 13,169.54 kg, this product is intended for project-based procurement where structural design, foundation interface, transportation, lifting, and installation requirements must be coordinated before delivery.

The final suitability of the pole depends on the approved structural drawings, design loads, connection details, applicable project standards, and site conditions.

Key Product Features

• 29.63 m stated overall height: Intended for projects requiring a tall steel pole structure, subject to dimensional verification.
• Eight-sided cross-section: Octagonal geometry provides a defined structural profile for engineering design and fabrication.
• Four-section slip-joint configuration: Segmented construction supports transportation and on-site assembly planning. Final joint overlap and assembly requirements must follow approved drawings.
• Base flange connection: Provides a bolted interface with a compatible foundation or supporting structure, subject to the specified flange and anchor-bolt design.
• Q500C steel: Steel grade specified for the four pole sections.
• Hot-dip galvanized finish: Provides a zinc coating intended to help protect the steel against atmospheric corrosion. Coating requirements and inspection results should be confirmed against the project specification.

Buyer Considerations: What to Verify Before Ordering

Large steel poles require coordination between structural engineering, manufacturing, logistics, and site installation. The following points should be confirmed before production approval.

Structural loading and design conditions

Wind loading, ice loading where applicable, conductor or equipment loads, eccentric loads, deflection limits, and foundation reactions must be checked against the project's design criteria. Steel grade and pole dimensions alone do not establish the allowable load capacity.

Section joints and assembly

The four-section configuration requires verification of section orientation, slip-joint overlap, joint fit, assembly sequence, and any specified locking or connection details. These details should be documented in the approved fabrication and installation drawings.

Base flange and foundation interface

The flange dimensions, plate thickness, bolt-hole pattern, anchor-bolt arrangement, weld details, and foundation interface must match the approved foundation design. Compatibility should not be assumed from the flange connection alone.

Corrosion protection

The required zinc-coating thickness, surface preparation, coating inspection method, and acceptance criteria should be stated in the purchase specification. The actual coating performance depends on the environment, coating quality, and maintenance conditions.

Transport and lifting

The stated pole length, section dimensions, total weight, packing arrangement, lifting points, and center of gravity should be checked before shipment. The selected transport method must comply with the dimensional and weight limits applicable to the route and destination.

Design and Assembly: How the Pole Configuration Works

The pole is supplied in four sections with an octagonal cross-section. The sections are intended to be joined through a slip-joint arrangement, subject to the approved joint design.

A segmented configuration can help accommodate transport and handling constraints associated with long steel structures. Actual transport feasibility depends on the dimensions of each section, packing method, container or vehicle configuration, and destination restrictions.

At the bottom, the flange connection is intended to interface with the project-specific foundation or support. The anchor-bolt layout, flange geometry, weld details, and foundation reactions must be coordinated with the structural design.

The Q500C steel specification identifies the stated material grade. Hot-dip galvanizing provides a zinc-based protective coating, while compliance with the specified coating requirements must be demonstrated through appropriate manufacturing records and inspection.

No load rating, wind-speed rating, service life, or regulatory compliance should be assumed without the relevant engineering calculations and verification documents.

Technical Specifications

Pole Section Schedule

Dimensional note: The section dimensions above reproduce the supplied data. The meaning and order of the paired diameter or across-flat dimensions, the wall-thickness units, and the section numbering must be confirmed against the manufacturing drawing.

The four stated section lengths total 33,180 mm, whereas the stated overall pole length is 29,630 mm. Because slip-joint sections may overlap during assembly, the effective assembled length must be confirmed from the approved drawing and joint-overlap dimensions before these figures are used for production or contractual documentation.

Applications and Suitability

This pole may be considered for the following applications when the structural design and project specifications confirm suitability:

• Power transmission or distribution infrastructure: For engineered steel pole installations with verified conductor, equipment, wind, and foundation loads.
• Electrical utility projects: For utility-owned or contractor-delivered infrastructure where the required pole geometry, steel grade, connections, and coating are defined by the project.
• EPC and infrastructure projects: For projects requiring coordinated fabrication, sectional transport, flange interfaces, and site assembly.

Application suitability depends on the required structural capacity, electrical clearances, conductor arrangement, environmental exposure, foundation design, and governing standards. The product should not be specified for a particular voltage class or loading duty without engineering confirmation.

How to Select the Right Steel Pole

To confirm suitability and prepare an accurate quotation, buyers should provide:

1. Project location and destination port or delivery address.
2. Required assembled height and approved general arrangement drawing.
3. Pole loading data, wind design criteria, conductor or equipment loads, and deflection requirements.
4. Cross-section dimensions, wall thicknesses, section lengths, and slip-joint overlap requirements.
5. Base flange drawing, anchor-bolt layout, and foundation interface details.
6. Required steel grade, material certificates, applicable fabrication standards, and inspection requirements.
7. Galvanizing specification, coating thickness, and coating inspection criteria.
8. Order quantity, required delivery date, packaging preferences, and shipping constraints.
9. Required certificates, inspection reports, and destination-market compliance documents.

Where drawings or calculations are not yet available, the project team should identify the missing design inputs before confirming the final configuration.

Quality Assurance and Documentation

For project procurement, the following documents can be requested where applicable and available:

• Approved fabrication and dimensional drawings.
• Steel material certificates and traceability records.
• Welding procedure and inspection records, where specified.
• Dimensional inspection reports.
• Hot-dip galvanizing inspection records and coating-thickness results.
• Final inspection documentation and packing lists.
• Project-specific third-party inspection or compliance documents, if required and agreed.

The availability and scope of these records should be confirmed with the manufacturer before being stated as included in the supply contract.

Packaging, Transport and Delivery

The supplied photographs show the steel pole sections and associated components loaded inside a shipping container. This provides a visual reference for the packing arrangement of the photographed shipment, but does not independently establish the container type, cargo securing compliance, or suitability for every destination.

Before shipment, confirm the actual package dimensions, gross and net weights, section identification, lifting and handling instructions, load distribution, cargo securing arrangement, and route-specific transport restrictions.

For a long, heavy, multi-section pole, shipping feasibility should be assessed using the approved packing plan and the actual dimensions and weights of the cargo and transport equipment.

Frequently Asked Questions

Is the pole supplied in one piece?

The stated configuration consists of four sections intended for slip-joint assembly. The final joint arrangement and assembled dimensions should be confirmed from the approved drawings.

What steel grade is specified?

Q500C is specified for all four sections in the supplied product data. Material certificates should be checked to verify the delivered material grade and the applicable material standard.

Is the pole hot-dip galvanized?

Yes. Hot-dip galvanizing is the specified surface treatment. The required coating thickness, applicable standard, and inspection acceptance criteria should be agreed before production.

Does the pole include a base flange?

The described product has a base flange connection. The flange dimensions, bolt-hole pattern, anchor-bolt compatibility, and foundation interface must be verified against the project drawings.

Can the pole be used for a specific transmission voltage?

The voltage class cannot be determined from the overall height, steel grade, and section dimensions alone. Electrical clearances, conductor configuration, structural loads, and the governing project design must be reviewed.

What information is needed for a quotation?

Please provide the quantity, destination, approved drawings, design requirements, flange and foundation details, galvanizing specification, inspection requirements, and target delivery date. If drawings are unavailable, provide the project design basis and identify the details requiring confirmation.

Can customized dimensions or connections be supplied?

Customization can be evaluated against the manufacturer's engineering and production capabilities. Final acceptance depends on the approved drawings, material availability, applicable standards, and agreed production requirements.

Request a Technical Review and Quotation

Send us your project drawings, required quantity, destination, technical specifications, and target delivery schedule.

Our project team can review the supplied dimensions, identify information requiring confirmation, and assess the quotation, manufacturing documentation, packaging, and delivery requirements for your project.

Request a quotation and technical review for the 29.63 m octagonal steel pole.

How to Choose / CTA

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• Company: Futao Metal Structural Unit Co., Ltd.
• Official Website: http://www.metalpowerpole.com
• WhatsApp: 0086-13812516912,13665163520
• Email: li@fu-tao.com,sales2@futaogroup.com