A checkweigher machine weighs products in motion. It classifies, counts, and rejects products that are out of specification, helping users meet throughput and legal needs with dependable weight control.
Image Credit: Thermo Fisher Scientific – Production Process & Analytics
Why Use Checkweighers: Brand Security
Meeting Consumer Expectations
Producing consistent quality products is critical for protecting one’s brand and bottom line. That means guaranteeing that the weight of the packaged product to be shipped is the same as the weight stated on the label.
Why Use Checkweighers: Regulations
In the U.S., the National Institute of Science and Technology (NIST) characterizes the Maximum Allowable Variation of packaged products (Ref Handbook 133 NIST Revised 2016).
In Europe, the Measuring Instruments Directive (MID) regulations characterize the performance of checkweighers utilized for weighing products that consumers can purchase.
Other countries and regions have similar standards and criteria.
Why Use Checkweighers: Plant Efficiency
- Improved Equipment Effectiveness (OEE)
- Weight management to minimize product giveaway
- Optimized efficiency
- Consistent product throughput
Image Credit: Thermo Fisher Scientific – Production Process & Analytics
Why Use Checkweighers: Weight Control
Producing consistent-quality products protects one’s brand and bottom line. That means guaranteeing that the weight of a packaged product ready for shipment is the same as stated on the label.
Checkweighers weighs products in motion. It weighs, counts, and rejects products that do not meet specifications, helping users meet throughput and legal criteria while providing reliable weight control.
- Meeting Specifications: Does the finished product match specifications? Your checkweigher should compare data within permissible limits that you set. Future business depends on it.
- Net Content: Under Weight: Use checkweighers to help ensure your products meet customer expectations, as well as the United States Department of Agriculture (USDA) Food Safety and Inspection Service labeling policies for product weight.
- Net Content: Over Weight: Don’t give away product. Checkweighers can help your bottom line by ensuring that there isn’t too much product inside.
- Contaminants: Some checkweighers can be combined with other packaged product inspection equipment like metal detectors or X-ray systems for an economical, spacesaving product inspection solution.
- Classification: Checkweighers can even be used to help classify products into weight zones or grades.
Why Use Checkweighers: Weight Control
- Missing Primary Components: Count by weight is important to customer satisfaction. What would a customer think if he or she opened a box of chocolates, and a piece was already missing from the tray?
- Sub-Standard Products: Has a packaged product been damaged? Has it sprung a leak? Has it been filled with the right product or number of products? Has a foreign object found its way into the packaging? A checkweigher can discover a problem before or at the end of the line.
- Control: The weight data from your checkweigher can be fed back to control your filler system, providing a closed loop to drive process efficiency.
- Missing Secondary Components: The product might be intact, but is everything else that should be inside also enclosed— like a leaflet, spoon or straw?
- Lot Deviation: Before a shipment goes out the door, checkweighers can monitor lots and compare averages and standard deviations to targets.
Image Credit: Thermo Fisher Scientific – Production Process & Analytics
This information has been sourced, reviewed and adapted from materials provided by Thermo Fisher Scientific – Production Process & Analytics.
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