Weighing in Motion

Belt Scales

Weighing in Motion

Improve Your Belt Scale Operation
Established in 1946 as a repair shop for scales, mainly from the prevalent dairy industries, Rice Lake extended its portfolio with weighing equipment, like belt scales. Today they offer all kinds of scales all over the world. The article describes how to optimize a belt scale system by choosing the right indicator for particular application.
(ed. WoMaMarcel - 16/12/2014)
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The BS143 model weighs three idlers on an inner frame that is supported by four load cells. This makes it the most accurate belt scale from Rice Lake Weighing Systems and is particularly qualified for higher capacities and high belt speeds.

Rice Lake Weighing Systems started as a service company in 1946, repairing scales for the area’s famous dairy industry. In 1971, they began supplying new and refurbished pivots and bearings, and soon began including precision test weights, building an advanced metrology lab to become a major supplier of test weights and recalibration services. The next addition to the catalog were electronic parts and components. “Service, selection and speed” became Rice Lake’s motto to live by. The entire weighing industry welcomed that commitment and soon depended on Rice Lake for critical parts and components as well as 24/7 technical assistance. Today, Rice Lake Weighing Systems is at the forefront of the evolution in weight-based measurement and automated process control. Rice Lake’s corporate headquarters, metrology laboratory and main manufacturing plant remain in Rice Lake, Wisconsin, employing more than 500 employees. Additional manufacturing facilities are located in Alabama, Connecticut, Nevada and Washington. Internationally, Rice Lake’s presence is represented by manufacturing facilities in Brazil, India, the Netherlands, and Mexico. Rice Lake has a unique global distribution and service network including more than 2000 distributors in 75 countries with trained technicians and finest factory support.

In 2013, the European division, Rice Lake Weighing Systems Europe B.V., acquired Dutch belt-scale manufacturer Master Engineering. Known for being a key systems and solutions provider of static and dynamic weighing throughout the Netherlands and Belgium, Master Engineering’s progressive technology provided durable, reliable, and efficient solutions for various weighing applications. Now, Rice Lake Weighing Systems offers a broad delivery program of Master belt scales, streamlining the same durability, reliability and efficiency customers have come to know and trust. Rice Lake Weighing Systems has six different models of Master belt scale frames ensuring the possibility of one or more solutions for every application. From the food, recycling, or chemical industry to steel, animal feed, and compost production, Rice Lake Weighing Systems is committed to quality weighing solutions.

A belt scale consists of a weigh frame with one or more load cells, a speed pick up, and a weigh processor, which integrates the two signals (kg/m and m/s) into a value of kg or tons per hour. The selection of the weigh frame and speed pick up is determined by the requested accuracy; variables such as belt scale speed and inclination of the belt, the structure of the transport belt, and external circumstances like moisture and aggressive environment. Optimize your belt scale system by choosing the right indicator for your application. Some factors to consider when selecting an indicator are:

  • Functionality: Are you simply measuring the product quantity or do you need to control the dosing of the product as well?
  • Communication: Are you connecting to a PLC, PC, or other device?
  • Environment: What sort of elements will this indicator be exposed to? Dust, wind, rain, snow, and heat are all environmental factors when considering the right indicator.
  • Miscellaneous factors: Are you seeking an MID approval or Atex classification?

The same factors can be considered when choosing the right belt scale frame. With six different models of belt scale frames to choose from, Rice Lake Weighing Systems will guide you through every step of the decision making process. Here are our three most popular frames to consider when optimizing your weighing, dosing, and batching process:

  • The BS143 model weighs three idlers on an inner frame that is supported by four load cells. This makes it the most accurate belt scale from Rice Lake Weighing Systems and is particularly qualified for higher capacities and high belt speeds. It is often used in OIML certified applications at harbors for loading ships and trucks, as well as offloading bulk cargo. Made using specifications of the conveyer belt, the frame is suitable for most conveyer belt models.
  • The BS221DB model consists of two arms, each equipped with a pivot and a load cell, that are mounted to the outside of the side supports of the conveyer belt. The idler or weighing roller will be mounted on top of both arms. This model provides easy assembly and good accessibility for service. The BS221DB is suitable for most belt widths and capacities, which makes it applicable in various market segments.
  • The BS311 model consists of an idler or roller placed on a simple load cell beam, which makes it a very cost effective solution. It is suitable for belt widths up to 1000 mm and belt speeds up to 1.5 m/s. This frame is often used in dosing belts that can regulate the capacity of a bulk flow using the measured value and a controlled belt speed.

When choosing a belt scale, experienced and professional industry experts can help you choose the right one for your specific application. Rice Lake offers a full line of advanced weighing equipment, supplies and parts, plus the capability to design custom equipment and integrated systems quickly and economically. Your process and your business are guaranteed to be serviced and supported by dedicated scale experts in the industry, 24 hours a day, 7 days a week, 365 days a year.

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