Inside the largest automated warehouse in the Southern Hemisphere

Amazon's robotics fulfilment centre in Western Sydney is the largest warehouse in the country, equivalent to 24 rugby league fields. (Credit Damian Shaw)

In Australia's biggest warehouse, all you can hear is the hum of hundreds little electric motors whirring.

Welcome to Amazon's new $500 million robotics fulfilment centre, a gargantuan network of polished concrete and conveyor belts that the ecommerce giant anticipates will shoulder the heavy lifting of Australia's online shopping boom.

Boasting 200,000 square metres of floor space over four levels, the Western Sydney building is the first of its kind in Australia to harness the power of hundreds of robots that sort, distribute and move products.

More robovac than robocop, the robots are capable of sorting more than 18,000 pods of products that could house anything from an iPhone to jewellery, books or toys.

Amazon says the use of the robots is not a replacement for human workers but a way to improve efficiency and save space – allowing the business to store 50 per cent more items per square metre.

The robots are ankle-high blue platforms capable of avoiding collisions, sorting products and being as efficient as possible. (Credit Damian Shaw)

Every package that passes through the Kemps Creek warehouse is anticipated to be touched by four separate humans, who do the "creative" work of picking, packing and stowing products.

Amazon Australia's Director Operations Craig Fuller tells 9News.com.au that it's likely the new robotics centre is the most technologically advanced small logistics centre in the country.

"The big difference between an Amazon warehouse and something like Coles or Woolworths is that the supermarket system is designed around moving pallets and breaking them down," Mr Fuller said.

"Whereas we accept customer orders direct. So our entire warehouse mentality is about being able to pick one unit and deliver it to a customer on time."

Amazon says its aim is to be "Earth's most customer centric company", priding itself on two-day delivery for its paid subscribers known as Prime Members.

The new robotics centre in Sydney places Amazon within a 12-hour window of delivering as far north as Brisbane and as far south as the NSW South Coast by road.

Craig Fuller, Director of Operations for Amazon Australia, said the robots will drastically improve the number of products that can be held on site. (Credit Damian Shaw)

By using robots to tackle the vast but mundane task of finding a product from a catalogue of millions, Mr Fuller says the end goal is faster delivery for shoppers.

"The opening of this site will double our operational footprint in Australia while creating more than 1500 local jobs in Western Sydney, with the opportunity to work alongside advanced robotics to deliver the ultimate in service for customers," Mr Fuller said.

"The introduction of robotics enables us to exponentially increase our capacity for storing inventory, providing additional opportunities for the thousands of small and medium sized Australian businesses we support, while increasing product selection and improving delivery speed for our customers around the country."

The retailer is preparing for the future of online shopping in Australia by future-proofing its logistics operations. (Credit: Damian Shaw)

Amazon.com.au launched in Australia in December 2017 and now offers customers 125 million products across 31 different categories including Amazon devices.

Amazon Robotics will complement the retailer's existing network of six Australian fulfilment centres launched in Dandenong South, Moorebank, Perth's Airport Precinct, Lytton and most recently a second site in Ravenhall, Melbourne.