Heavy‑duty hinges keep heavy doors, gates and machinery working safely and reliably across industrial sites. Choosing the right hinge means understanding the common hinge types, how load ratings are established, which materials resist corrosion best, and how to install and maintain them correctly. This guide walks through the hinges most used in Australia, how their load limits are measured, the materials suited to different environments, and practical installation and upkeep tips so you can pick the best hinge for the job.