Check weighers are automated machines used in packaging lines to ensure that the weight of a product is within specified limits. They play a crucial role in quality control by verifying that each package meets the required weight standards, thus ensuring compliance with regulations and maintaining customer satisfaction. Primary Packaging Check Weighers:** These are used to weigh the product in its immediate packaging, such as bottles, cans, or boxes. The primary packaging is the first layer of packaging that comes in direct contact with the product. Check weighers in this stage ensure that the product itself, without any additional packaging, meets the weight specifications. **Secondary Packaging Check Weighers:** These are used for products that have already been packaged in primary packaging and are then grouped together in secondary packaging, such as cartons or cases. Secondary packaging serves for branding, logistics, and protection during transportation. Check weighers at this stage ensure that the total weight of the grouped products is accurate, accounting for both the primary packages and the secondary packaging materials. Check weighers help in reducing product giveaway, ensuring regulatory compliance, and maintaining brand reputation by preventing underweight or overweight products from reaching consumers. They are essential in industries like food and beverage, pharmaceuticals, and consumer goods.