Robots are revolutionizing factories, warehouses, and distribution centers (DCs) around the world, thanks largely to heavy investments in the technology between 2019 and 2021. And although investment has slowed since then, the long-term outlook calls for steady growth over the next four years. According to data from research and consulting firm Interact Analysis, revenues from shipments of industrial robots are forecast to grow nearly 4% per year, on average, between 2024 and 2028 (see Exhibit 1).
EXHIBIT 1: Market forecast for industrial robots - revenuesInteract Analysis
Material handling is among the top applications for all those robots, accounting for one-third of overall robot market revenues in 2023, according to the research. That puts warehouses and DCs on the cutting edge of robotic innovation, with projects that are helping companies reduce costs, optimize labor, and improve productivity throughout their facilities. Here’s a look at two recent projects that demonstrate the kinds of gains companies have achieved by investing in robotic equipment.
FASTER, MORE ACCURATE CYCLE COUNTS
When leaders at MSI Surfaces wanted to get a better handle on their vast inventory of flooring, countertops, tile, and hardscape materials, they turned to warehouse inventory drone provider Corvus Robotics. The seven-year-old company offers a warehouse drone system, called Corvus One, that can be installed and deployed quickly—in what MSI leaders describe as a “plug and play” process. Corvus Robotics’ drones are fully autonomous—they require no external infrastructure, such as beacons or stickers for positioning and navigation, and no human operators. Essentially, all you need is the drone and a landing pad, and you’re in business.
The drones use computer vision and generative AI (artificial intelligence) to “understand” their environment, flying autonomously in both very narrow aisles—passageways as narrow as 50 inches—and in very wide aisles. The Corvus One system relies on obstacle detection to operate safely in warehouses and uses barcode scanning technology to count inventory; the advanced system can read any barcode symbol in any orientation placed anywhere on the front of a carton or pallet.
The system was the perfect answer to the inventory challenges MSI was facing. Its annual physical inventory counts required two to four dedicated warehouse associates, who would manually scan inventory to determine the amount of stock on hand. The process was both time-consuming and error-prone, and often led to inaccuracies. And it created a chain reaction of issues and problems. Fulfillment speed is one example: Lost or misplaced inventory would delay customer deliveries, resulting in dissatisfaction, returns, and unmet expectations. Productivity was also an issue: Workers were often pulled from fulfillment tasks to locate material, slowing overall operations.
MSI Surfaces began using the Corvus One system in 2021, deploying a small number of drones for daily inventory counts at its 300,000-square-foot distribution center (DC) in Orange, California. It quickly scaled up, adding more drones in Orange and expanding the system to three other DCs: in Houston; Savannah, Georgia; and Edison, New Jersey. The company plans to add more drones to the existing sites and expand the system to some of its smaller DCs as well, according to Corvus Robotics spokesperson Andrew Burer.
Those expansion plans are based on solid results: MSI’s inventory accuracy was about 80% prior to the drone implementation, but it quickly jumped to the high 90s—ultimately reaching 99%—after the company initiated the daily drone counts, according to Burer.
“We actually had an incident early on where one of the forklift drivers ran into the landing pad, rendering it inoperable for about a week while the Corvus team fixed it,” Burer recalls. “When we restarted the system, we noticed MSI’s inventory accuracy had dropped down to the 80s. But after flights resumed, accuracy quickly improved back to near perfect.” He adds that such collisions are rare as Corvus mounts landing pads high off the floor to avoid impacts but that accidents can still happen.
Overall, the system has helped speed warehouse operations in two key ways: First, the accuracy improvement means that associates no longer waste time searching for missing material in the warehouse. And second, the associates who used to conduct the physical inventory counts have been reallocated to picking and replenishment—creating a more efficient, and optimized, workforce.
A SAFER, MORE EFFICIENT WAREHOUSE
Robot maker Boston Dynamics is well-known for its Stretch and Spot industrial robots, both of which are at work in warehouses and DCs around the world. Earlier this year, Stretch made its debut in Europe, teaming up with Spot at a fulfillment center run by German retail company Otto Group. The deployment marks the first time Stretch and Spot are being used together—in a partnership designed to improve Otto Group’s warehousing operations by increasing efficiency and making warehouse work safer and more attractive to workers.
The partnership is part of a two-year project in which Boston Dynamics will deploy dozens of its warehouse robots in Otto Group’s European DCs. The first location is a fulfillment site operated by Hermes, the company’s parcel delivery subsidiary, in Haldensleben, Germany—a facility that handles as many as 40,000 cartons of goods on peak days.
At the site, Stretch—which is a mobile case-handling robot—autonomously unloads ocean containers and trailers, using its advanced perception system to pick and place boxes onto a telescoping conveyor inside the container or trailer. Spot—a quadruped robot—helps with predictive maintenance by collecting thermal data and performing acoustic and visual detection tasks throughout the facility to reduce unplanned downtime and energy costs. One of Spot’s jobs is to detect air leaks in the facility’s warehouse automation systems; future duties may include conveyor vibration detection, according to leaders at Otto Group.
Both Stretch and Spot will help the Haldensleben facility run more efficiently, especially during fall peak season when volume increases and work intensifies. The addition of Stretch addresses safety and comfort issues as well: Trailer unloading—a process that entails repeatedly lifting and moving heavy boxes inside a trailer, which can be dark, dirty, cold, and/or hot, depending on the weather—tends to be unappealing to workers. Along with reducing the amount of labor required, automating these tasks will have the added benefit for European facilities of helping them comply with EU (European Union) regulations limiting the amount of time workers can spend in those conditions.
Essentially, the robots are making life easier on the warehouse floor and for the company at large.
“Stretch is going to have a ton of benefits for customers here in the EU,” Andrew Brueckner, of Boston Dynamics, said in a recent case study on the project.
