Multihead Weigher for Small Particles

Updated: 2026-07-19

Overview

Multi-head weighing scales, also known as combination weighers, are advanced industrial weighing systems designed for high-speed and high-accuracy portioning of small granules, snacks, and other products. They are widely used in the food, pharmaceutical, and chemical industries to ensure precise weight measurements while minimizing waste. These scales typically consist of multiple weighing heads that work in unison to combine measurements and achieve the exact target weight. The technology behind multi-head weighing scales has evolved significantly, enabling them to handle a variety of products, including irregularly shaped items. Their ability to operate at high speeds while maintaining accuracy makes them indispensable in modern production lines.

Structure and Working Principle

A multi-head weighing scale comprises several key components: feed hoppers, weighing hoppers, a central processing unit, and a discharge chute. The product is fed into the system via the feed hoppers, which distribute it evenly to the weighing hoppers. Each weighing hopper measures the product's weight independently, and the central processing unit calculates the optimal combination of hoppers to achieve the target weight. The system then discharges the selected combination into the discharge chute for packaging. This dynamic process allows for rapid and accurate weighing, even for products with varying densities or shapes. Advanced models may include features like automatic calibration and self-cleaning mechanisms to enhance performance and hygiene.

Key Features

Multi-head weighing scales are renowned for their high-speed operation, often capable of weighing up to 200 portions per minute. They incorporate multiple weighing heads (typically 10 to 24) to ensure accuracy and reduce product giveaway. The touchscreen interface allows for easy setup and monitoring, while automatic calibration ensures consistent performance over time. Other notable features include stainless steel construction for durability and hygiene, anti-vibration technology to minimize interference, and compatibility with various packaging machines. Some models also offer data logging and connectivity options for integration with factory automation systems.

Application Areas

Multi-head weighing scales are extensively used in the food industry for portioning snacks, nuts, confectionery, frozen vegetables, and meat products. They are also employed in the pharmaceutical industry for precise dosing of tablets, capsules, and powders. Additionally, these scales find applications in the chemical industry for measuring granules, pellets, and other bulk materials. Their versatility and accuracy make them suitable for both small-scale operations and large-scale production lines. Industries that require strict adherence to weight regulations, such as retail and export, particularly benefit from the reliability of multi-head weighing scales.

Maintenance and Precautions

Regular maintenance is essential to ensure the longevity and accuracy of multi-head weighing scales. This includes routine cleaning to prevent product buildup, especially in food applications where hygiene is critical. Calibration should be performed periodically, or as recommended by the manufacturer, to maintain precision. Operators should avoid exposing the scales to excessive moisture, dust, or corrosive substances, as these can damage sensitive components. It's also advisable to inspect the scales for wear and tear, particularly in high-throughput environments, and replace parts as needed to prevent downtime.

B2B Procurement Guide

When procuring a multi-head weighing scale, buyers should consider several factors to ensure they select the right model for their needs. Key considerations include the type of product being weighed, the required throughput (portions per minute), and the level of accuracy needed. Hygiene standards, such as compliance with FDA or EU regulations, are also critical, especially in food and pharmaceutical applications. Additionally, buyers should evaluate the supplier's after-sales support, including availability of spare parts and technical assistance. Comparing different models based on features, price, and warranty can help in making an informed decision. For reference, prices typically range from $5,000 to $50,000, depending on the scale's complexity and capabilities.