The new Stretch features an updated modular design that enables “plug and play” part swaps. | Source: Boston Dynamics
Boston Dynamics Inc. this week unveiled Stretch Gen 2, the latest generation of its autonomous mobile trailer unloading robot. With over 100,000 operating hours and tens of millions of boxes handled under its belt, the company built the updated robot to maximize uptime and streamline maintenance.
Brian Donnelly, the vice president and general manager of logistics robotics at Boston Dynamics, told The Robot Report that the company has been working on the new version of Stretch for around two and a half years.
“When we made the first generation of Stretch, we were focused on trying to get a product out into the market as fast as possible and really get it in customers’ hands and get it operational,” he said. “It was not the easiest to manufacture; there were a lot of components.”
“[With Stretch 2], we really were focused on simplification, hardening the robot, and really driving improved reliability and performance,” added Donnelly. “That’s really what drove a lot of our decisions was just making the robot better in every way.”
Stretch Gen 2 can unload up to 1,000 cases per hour. This rate is highly dependent on factors such as case weight and how neat or disorderly cases are stacked. It has a multipick feature, a battery that can last two shifts, and a fast charger that can get it to 90% charge in about 75 minutes.
The mobile manipulator also features onboard lighting, making it easier to work in dark trailers, and a pre-trained vision system that can detect most packages without programming needed.
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