Ron Weiss and his daughter, Kristen (center), place asparagus spears on a conveyor belt to be washed at the Weiss Asparagus Farm processing facility in Red Lake Falls, Minn. on Sunday, May 20, 2018.

Ron Weiss and his daughter, Kristen (center), place asparagus spears on a conveyor belt to be washed at the Weiss Asparagus Farm processing facility in Red Lake Falls, Minn. on Sunday, May 20, 2018.

After 3 years of development, including a complete harvesting season, the harvesting robot is now ready for commercial use.

Harvest work is hard and monotonous. This adds weight to arguments that robots could replace humans in the fields. It is already happening on a small scale in the Netherlands, but researchers have ...

And conveyor-belt manufacturers assume some method of roller crowning will be used, so they make belts that accept a modest level of crown without increasing wear. Crown rollers can be used with ...