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The Importance of Checkweigher Belts in Modern Industry
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Time to read 4 min
What Are Checkweigher Belts
Checkweigher belts are a specific type of conveying belt utilized on checkweighers worldwide. A checkweigher is an industrial scale primarily used in packaging to ensure that products meet specified weight requirements. This conveyor automatically weighs items to a high degree of accuracy and rejects items that are outside the pre-determined weight range. Checkweighers are essential for quality control, waste reduction, and compliance regulations across many different industries. The belt is the primary mechanism in the conveyor that moves product across the scale mechanism. Because of this, a checkweigher belt must be seamless and manufactured under precise specifications to ensure the most accurate weight is transmitted to the scale, especially in high-speed applications. This belt type is typically constructed with an endless woven polyester core encompassed with synthetic rubber, PU, or silicone, depending on the checkweigher application. Most of these belts are 0.95mm, 1.2mm, or 2mm in thickness and vary in a wide array of widths. Additionally, checkweigher systems also use modular belting or mesh belts. We also supply custom checkweigher belts upon request!
Checkweigher History
Checkweigher systems date back as early as 1933; however, the first actual successful checkweigher system was created in 1953 by the Ilumatronic Company of California. These systems were developed particularly for the food industry, but it wasn’t until 1960 that the first batch of commercial checkweigher systems was produced and approved for use. Then, in 1964, Anritsu introduced the first electronic checkweigher system that utilized electronic micrometers and weigh cells based on measuring electrical displacement. This method significantly improved accuracy and speed. Moving forward to 1970, checkweighers found themselves in the pharmaceutical industry through Anritsu's innovation of the K515 system, which weighed minute products like capsules at an impressive rate of 600 per minute with an accuracy range of 2mg. By the late 20th century, significant advances had been made in digital weighing technology, including strain gauge load cells and electromagnetic force restoration (EMFR) technology that revolutionized checkweighers’ performance and accuracy. Today, modern checkweighers are highly sophisticated pieces of equipment that utilize advanced sensors, digital signal processing, automated rejection mechanisms, and data recording technology to conform to regulations and strict quality control guidelines across a broad spectrum of industries and applications.
Checkweigher Belt Applications in Modern Industry
Checkweigher belts are the primary component for checkweighers, which are utilized in a broad spectrum of applications in today’s ever-growing industrial automation operations. With increasing demands for checkweighers, especially across sectors like food and beverage, pharmaceuticals, and chemicals, checkweighers are a growth sector in industrial automation. As of 2025, checkweighers have a market size of 212.9 million USD; however, by the year 2032, the forecasted market size will be at 309.4 million USD. This translates to a Compound Annual Growth Rate (CAGR) of 5.5%. Specific applications include:
- Food Industry – Checkweighers ensure accurate portion sizes while preventing overfilling and keeping packaged food items in compliance with labeling regulations.
- Pharmaceutical – These conveyors are essential in this sector for maintaining precise dosages and complying with strict regulations.
- Packaging Industry – Checkweighers are implemented across many packaging industries, including even automated fulfillment centers, to ensure packed goods match weight values to prevent fulfillment.
- Consumer Goods – This broad spectrum of applicational usage covers anything from packaged organics to preservatives and more. Almost every commercially packaged item you see at a grocery store has been through a checkweigher system.
- Other Industries – Checkweighers are used for cosmetics, chemicals, airline luggage, and many more!
Checkweigher Belt Selection
Our selection of checkweigher belts is nearly endless due to our capabilities. We provide direct OEM replacements for virtually any checkweigher manufacturer in the industry to ensure precise weight results without the need to recalibrate or configure your current setup. Additionally, our premium checkweigher belts can be supplied as FDA-compliant, antistatic configuration, or with an array of silicone coatings for high and low temperature applications.
Checkweigher Belts from USA Roller Chain
In today's ever-growing demands, we at USA Roller Chain understand the importance of reliability and performance. This is why all of our replacement checkweigher belts are manufactured from top-grade materials, ensuring precision and optimal use from our checkweigher belts for our clients. Contact us today for a quote!
Checkweigher Chain Selection
In a niche portion of the checkweigher industry, roller chains and silent chains are used. We supply a full range of chains and sprockets utilized in checkweigher systems.
- 3/16” Pitch Silent Chains – These chains are utilized in several different checkweigher systems within sorting, postage meters, and Mettler-Toledo Hi-Speed systems.
- 25NCWCC Plastic Checkweigher chain – This chain is designed with straight side-plates and extended pins; it is made from NylatronGS material.
- C25 Stainless Steel Chain – Constructed with straight sidebars from 304-grade stainless steel, this chain is utilized primarily by Thompson checkweigher systems.
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Written By: Connor Eversen
Vice President of Sales & Marketing