A huge number of products need to be reliably checked to meet the requirements of net content laws for packaged products and to deliver customer satisfaction—as well as significantly reduce expensive product giveaway. The automatic checkweighers are installed downstream of a multi-head weigher where Lamb Weston's French fries are portioned before ultimately being packed in one kilogram (2.2 pound) bags.
The bags are then weighed, and off-weight items are reliably rejected by a pusher. A light barrier monitors whether the rejection of underweight or overweight products was successful. If rejection fails, a message is displayed in the info section of the user friendly 15-inch touchscreen terminal.
An immediate conveyor shutdown and the activation of a potential-free contact warning allow operators to easily remove off-weight products from the production line and reintroduce them into the production process.
