Heavy Engineering & Fabrication

Dawsons has the ability to manage a project from design through to fabrication and installation. In over 30 years of operation, we have been involved in projects as diverse as structural refurbishments of mine processing plants, fabrication of pressure vessels in SAF2507; design and construction of mine camps and process plants; to the installation of an underground crusher.

We understand that our clients operate in a 24/7 environment and we manage projects between our workshops to ensure that even the tightest deadlines are met. We don't rely on third parties for supplementary labour – all of our projects are resourced internally. We also own our fleet of trucks, cranes and site tooling so that we maximise control of deadlines and quality at every stage of a project.

The Dawsons Difference

  • We are able to leverage off our three purpose built engineering workshops in Cairns, Townsville, and Mt Isa.
  • We are able to control workflow and utilise down time in one workshop to meet deadlines for clients – projects can be shared between sites.
  • Our workshops are able to operate 24/7 to meet tight deadlines.
  • We can mobilise a project workforce from across the company – ensure we have the best mix of available skills and ability on the project.
  • Our ability to mobilise to any site, Australia wide, at short notice has been critical to the success of many remote breakdown or emergent work projects.
The Dawsons Difference

Recent Projects

All Projects
HMAS Cairns Wharf Project

HMAS Cairns Wharf Project

SMC Marine · Cairns · 2024-2026

Fabrication of 600 tonne of steelwork for wharf expansion, permanent and temporary steelwork in mild and stainless, pile welding. Fabrication to 5131CC3.

View Project
Cairns Water Security Stage One

Cairns Water Security Stage One

John Holland, Koppens, FGF, HEH · Cairns · 2024-2026

Pipeline welding and mechanical package. 1500+ welds on lines from Behana intake to new Edmonton treatment plant. Above ground mechanical supply and installation package.

View Project
Daintree Bank Stabilization

Daintree Bank Stabilization

Albem Highways · Cairns · 2025-2026

Spliced 100+ mild steel piles to MRTS68. All works undertaken in environmentally sensitive World Heritage areas.

View Project
Mitchell River Bridge

Mitchell River Bridge

Albem · Mitchell River · 2024-2026

Pile splicing and site welding to MRTS68 on remote construction site.

View Project
HMAS Cairns Dirty Diesel Tank

HMAS Cairns Dirty Diesel Tank

NQ Petro · Cairns · 2025

Design and construct to API650 100,000 L mild steel, painted to ADF standard. Installation at HMAS Cairns for VIVA Energy.

View Project
Barge Ramp

Barge Ramp

Brady Marine · Cairns · 2025

New barge ramp for Ports North Smiths Creek. Fabricate and install multiple components in mild steel, stainless steel and aluminium. Gangways, stainless steel articulation joints, rails, pile welding.

View Project
Wharf Hopper

Wharf Hopper

Aurizon · Cairns · 2025

Design and construct fertilizer hopper for Aurizon rail. Re engineer from existing. 4.5m wide x 5m tall.

View Project
GEMCO Truss

GEMCO Truss

South32 · Cairns · 2025

Construction of dual conveyor truss 50m length, 3.6m long, 2.2m height. 36t, mild steel. 1518m of Welding to AS1554.1 Surface protection. Transportation to site.

View Project
Roaster Dome Replacement

Roaster Dome Replacement

Sun Metals · Townsville · 2024

Supply of 85T of grade A283C plate, fabrication of 2 x dome roofs and rolled strake sections. Site works included removal of the existing dome roofs and top strakes. Repairs to the existing shell, installation of the new top strakes, internal stiffeners and dome roofs.

View Project
Water Treatment Plant Chemical Dosing Upgrade

Water Treatment Plant Chemical Dosing Upgrade

Cairns Regional Council · Cairns · 2024

Installation of new 20KL FRP sodium hypochlorite storage tanks, a new chemical dosing panel and dual-wall piping. The scope also covered electrical works, SCADA integration, building modifications, access platforms, civil works, chemical-resistant coatings and safety shower installation.

View Project
Butterfly and Main Inlet Valves Replacement

Butterfly and Main Inlet Valves Replacement

Cleanco · Barron Gorge Power Station · 2024

Replacement of a CN2600 Butterfly Valve and 2 DN1200 Main Inlet Valves. Works involved the removal of the existing 50 year old valves, installation of new valves, pipework modifications, hydraulic works, electrical works and new access platforms.

View Project
Vanadium Electrolyte Plant

Vanadium Electrolyte Plant

Vecco · Townsville · 2023

Installation of client supplied piping, associate tanks and pumps. Approx 2km of site run PVC piping. Pilot plant with new technology and hard deadline for commissioning required a high degree of flexibility and active problem solving from our supervisor and trades.

View Project
Tank Repair Cannington Mine

Tank Repair Cannington Mine

South 32 · Townsville · 2023

Workshop fabrication and site installation to complete 98% Sulphuric Acide Stock Tank Repairs. The bottom strake required replacment. The project was carried out by installing an external support ring and replacing one shell plate at a time, new nozzles, blasting and painting. Work was carried out to aPI1650/651

View Project
Daintree Ferry Ramps

Daintree Ferry Ramps

Douglas Shire Council · Cairns · 2023

Supply and install Nothern and Southern ramps and four corner post davits for the Daintree Ferry. Installation works undertaken within tight operational windows and all in an environmentally sensitive area.

View Project
E2G Highway Project

E2G Highway Project

Wagstaff Piling · Cairns · 2022

Site welding of 50 steel casing piles. 100% Ultrasonic Testing and Mag Particle Testing required. TMR568 Standard.

View Project
Ravenswood Gold Platework Package

Ravenswood Gold Platework Package

Ravenswood Gold / Ausenco · Ravenswood Gold Mine · 2021

Supply, fabrication and delivery of 500T Plate work. Tanks, Hoppers, 2500m² of Guards.

View Project
APT Fire System Upgrade

APT Fire System Upgrade

APA Group · Mount Isa Diamantina & Leichardt Power Station · 2019-2021

Dawsons provided the supply, fabrication, installation and commissioning for the Diamantina and Leichardt Power Station Fire System Upgrade. The works were completed around steam and gas turbines, the central control room, power building and generator.

View Project
MIWB Tank Pipework

MIWB Tank Pipework

John Beever · Mount Isa Water Board · 2020

The project included the assembly of 2 x 50ft diameter tanks and required pipework at the Mount Isa Water Board.

View Project
Annular Cooler Rebuild

Annular Cooler Rebuild

Ferretti Engineering · Whyalla - Pellet Plant · 2019

Dawsons provided mechanical labour to rebuild the Annular Cooler at the Whyalla Pellet Plant during its 2019 scheduled outage. This included mobilisation of a total of 150 personnel which included mechanical trades, riggers, doggers and trade assistants.

View Project
Skyrail

Skyrail

Skyrail · Cairns · 2019

Design and construct cantilevered boardwalk structure in Barron Gorge National Park.

View Project
231 Flue & Walkway

231 Flue & Walkway

Glencore Mount Isa Mines · Mount Isa · 2018

The 3m diameter ducting ran was fabricated to replace ducting that runs between Lead Smelter Sinter Plant and the Stack Extraction Fan approximately 80m in length. We carried out the fabrication, trial assembly and delivery to the site and later carried out the installation.

View Project
Ceza

Ceza

South 32 · Cannington · 2018

Offsite fabrication packages and specialist site labour – supervision, planning and trades for the production critical installation of underground crusher.

View Project
Gunpowder Mine Redevelopment

Gunpowder Mine Redevelopment

Capricorn Copper · Gunpowder Mine · 2017

All mechanical repair works on processing plant to move from care and maintenance to full production. Fully tooled and supervised crew.

View Project
Sun Metals Shed

Sun Metals Shed

Sun Metals · Townsville · 2016

Construction of product shed, 100m long x 58m wide, 14m high walls. 10,000 cubes of concrete, 450T steel reinforcing, 9000m sheeting.

View Project
Hemi Hydrate Filter Train Expansion

Hemi Hydrate Filter Train Expansion

Incitec Pivot · Phosphate Hill · 2012

Brownfields construction project. Off-site fabrication packages and fast track on site Civil, Structural, Mechanical and Electrical.

View Project

Gallery

Talk to us about Heavy Engineering & Fabrication

Call 07 4058 5200 or email info@dawsonseng.com.au

Email Us