Supply and Install Cooling Tower 3 and 4 Crawl Beam

AC 240

2026-04-07 10:00

Tender Closed on: 2026-04-10 11:00

Ethekwini Metropolitan Municipality

Boilermaking, Fabrication and Engineering Services, Construction and Building Supplies, Cranes, Hoists, Forklifts and Lifting Equipment, Industrial Machinery, Tools and Equipment, Steel Structures, Supply and Installation of Machinery and Equipment, Welding Services, Equipment and Supplies

Durban, KwaZulu-Natal

Ethekwini Metropolitan Municipality

Ethekwini Metropolitan Municipality Tenders

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AC 240 - Supply And Install Cooling Tower 3 And 4 Crawl Beam

Category: General

RFQ

Enquiries Procuring Entity : UShaka Marine World


Tender Summary

Objectives

The primary objective of this tender is to procure a qualified service provider to supply, install, test, and commission a maintenance lifting system and crawl beam structure for Cooling Towers 3 and 4 at uShaka Marine World. The system aims to enable safe removal and installation of cooling tower motors and components, ensuring long-term operation in a coastal environment with enhanced corrosion protection.

Scope

The scope of work includes:

  • Engineering design of the lifting system and crawl beams
  • Structural steel fabrication
  • Supply of lifting equipment and structural components
  • Delivery to site
  • Installation and erection of structural steel and lifting systems
  • Load testing and commissioning of the system
  • Provision of documentation and certification for the installed system

Technical Requirements

The technical specifications for the project include:

Structural Crawl Beams

  • Type: Universal Beam (UB)
  • Size: UB 305 × 165 × 40
  • Material: S355 Structural Steel
  • Finish: Hot dip galvanized
  • Load Capacity: Safe Working Load (SWL) of 500 kg, minimum design load of 750 kg

Vertical Structural Column

  • Type: Circular Hollow Section (CHS)
  • Diameter: 200 mm
  • Wall Thickness: 12 mm
  • Material: S355 Steel
  • Height: 6 meters
  • Anchored to reinforced concrete foundation with chemical anchors

Supporting I-beam and Hoist

  • Beam: UB 356 × 171 × 51, 6 meters long, S355 Steel
  • Hoist features: Emergency stop, overload protection, upper and lower limit switches, weatherproof electrical components

Corrosion Protection

  • Hot dip galvanizing per ISO 1461 with minimum thickness of 100 microns
  • Additional marine coating system with total thickness of 250–300 microns

Safety and Design Documentation

  • Structural calculations, load analysis, shop drawings
  • Anchor bolt calculations, foundation details, welding procedures
  • Coating specifications, all designs signed off by a qualified structural engineer

Skills Requirements

The contractor must demonstrate:

  • Proven experience in rigging, lifting equipment, and structural steel fabrication
  • Capability to design and implement corrosion-resistant structures suitable for marine environments
  • Qualified personnel including certified riggers and welders
  • Ability to perform load testing and provide necessary certifications
  • Experience in working within coastal/marine conditions with appropriate safety standards
This summary is AI generated. Download the tender documents for all the information.

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