FABRICATION

Gateway Energy

Gateway Energy offers premium superior quality products based on excellence in:

1. Manufacture

Gateway Energy is the exclusive Australian distributor of Zhejiang Shengda Steel Tower Co Ltd (ZSST), a subsidiary of State Grid Corporation of China (or “State Grid”). State Grid is the second largest company globally (just behind Walmart) and the world’s largest utilities company. ZSST specializes in fabrication of steel poles, lattice towers, and steel tube towers, holding a number of World Records including the tallest transmission line tower at 370m tall and the first dual circuit 500kV poles delivered to Canada.

We specialise in manufacture of steel poles, lattice towers, steel tube towers, steel structures and hot-dip galvanisation. With ZSST we have three large factories in China producing over 200,000 tonnes of steel poles and towers per annum.

Our manufacturing is ISO9001, ISO14001 and OHSAS18001 management system certified.

2. Steel

Gateway Energy only use the highest grades of mid and high-strength structural steel. All our pole bodies are high-strength ASTM A572 GR65 (450MPa) ordered with Charpy Impact Test at -20°C. In this way, we never compromise material quality, we fully test all steel received into factory to ensure compliance with our leading requirements.

3. Welding

All Gateway Energy poles, masts and towers are welded to Structural Steel Welding Code AWS D1.1 and are compliant with our Welding Procedure Specifications and completed by fully Qualified Welders.

4. Galvanising and Dulling

All Gateway Energy poles are galvanised to either ASTM A123 or AS4680 (based on our customers preference) utilising the latest equipment technology at our manufacturers Hot Dip Galvanising (HDG) facilities.

Dulling is the process of de-glaring of the galvanisation finish, giving a similar visual appearance as a concrete pole. After years of development and testing, we have invested in a purpose-built Galvanising Dulling production line which was commissioned in 2017.

5. Painting and Ground Line Duplex Protection

Gateway Energy can supply partially or fully painted poles using international leading brand of high build epoxy paint system for galvanised coatings. Preparation and application procedures are critical to the life of any coating system on non-ferrous substrates, and we use specialist paint contractors for all in-factory application of paint systems.

6. Hold-Down Bolts

Gateway Energy only uses specialist high strength structural bolt steel with excellent ductility. We use only the highest specification of bolt steel and we believe we are industry leaders in this aspect.  This is a no-compromise non-negotiable for us.  Our hold-down bolts, nuts and washers are all third-party tested to the highest requirements, ensuring excellent quality and traceability of each batch.

The quality of Hold-Down bolts can be critical in a successful project and often overlooked as has been demonstrated by some recent Australian projects using lower grade bolts from other suppliers (ultimately costing many millions of dollars in failure, reconstruction and project overrun costs).

7. Quality Assurance

Gateway Energy has comprehensive quality assurance procedures, inspection and test plans (ITPs) for all important steps in our steel poles fabrication.