Walmart recently announced that, after successful tests, it is adding thousands of robots to locations throughout the country.

The Bentonville, Arkansas-based retail giant will be utilizing 1,500 Auto-C autonomous floor cleaners, 300 additional Auto-S shelf scanners, and 1,200 more FAST Unloaders.

The Auto-C floor cleaners can be programmed to travel throughout the open parts of the store, cleaning and polishing the floor. The Auto-S technology scans items on store shelves to help ensure availability, correct shelf location and price accuracy.

The FAST Unloaders work with the shelf scanners, automatically scanning and sorting items unloaded form trucks based on priority and department.

“Our associates immediately understood the opportunity for the new technology to free them up from focusing on tasks that are repeatable, predictable and manual, “says John Crecelius, senior vice president of Central Operations for Walmart U.S. “It allows them time to focus more on selling merchandise and serving customers, which they tell us have always been the most exciting parts of working in retail.”

Walmart is also rolling out 900 new Pickup Towers, where consumers can retrieve online orders that were selected for instore pickup.