Social Media | How does a multihead weigher work?

Why is a #multihead_weigher so precise? And how does it work exactly?
With a multihead weigher, the product is fed to the distribution cone in the middle above the #weighing system. From there, the product is conveyed radially outwards to the circularly arranged prefeed hoppers, and then into the weigh hoppers below. A computer uses several partial quantities to determine the #combination that comes closest to the target weight and then initiates the simultaneous pouring out. The emptied prefeed and weigh hoppers are then immediately filled again.

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Multihead weighers have firmly established themselves as crucial components of modern production lines, offering the versatility to weigh diverse product ranges. Whether you are venturing into the food manufacturing sector or seeking optimal solutions for your current operations, a fundamental understanding of multihead weigher functionality and its adaptability to various products is essential.

This guide elucidates the technical workings of a multihead weigher, its industrial applications, and key considerations for selecting one that aligns with your operational needs.

Breaking Down the Functionality of Multihead Weighers

 

A multihead weigher segments large quantities of products into smaller, manageable volumes based on preset parameters. It features components such as weigh buckets, infeed funnels, feed buckets, feeder pans, top cones, collating chutes, and collating funnels.

The process begins with the input of materials into the infeed funnel via conveyors or bucket elevators. Through vibrations or rotational movements, the top cone and feed pans distribute products into individual weigh buckets. Each bucket contains a load cell to monitor product weight consistently, ensuring uniform distribution.

The integrated software then determines the optimal combination of weights to achieve the desired total, distributing products according to target specifications. The cycle continues as emptied hoppers are refilled instantly.

Advantages of Implementing Multihead Weighers

 

In food processing, multihead weighers excel due to their speed and accuracy. Employing load cells within the system allows for high precision in bulk product processing. The frequent refilling of the weigher heads facilitates faster operations compared to manual methods, streamlining automation.

The adaptability of multihead weighers across various industries aids in addressing unique production challenges efficiently. Moreover, these weighers can seamlessly integrate with other systems like checkweighers and product inspection equipment, minimizing manual intervention and enhancing quality and precision.

Factors to Consider When Selecting a Multihead Weigher

 

Several factors should guide your choice of a multihead weigher. These include unique system features tailored to specific products or objectives. Below, we explore some critical considerations:

Head Count and Operational Efficiency

 

Typically, a multihead weigher comprises 10 to 32+ weigh buckets (or heads). More heads allow quicker weight combination calculations and enhance accuracy for processing large volumes efficiently.

 Surface Properties for Various Products

 

The product's nature dictates the surface features of weigh buckets. Textured surfaces facilitate the smooth movement of sticky items, while smoother surfaces are ideal for dry products.

 Optimized Vibration Settings

 

Adjusting vibration amplitude and duration to match the product type is vital. Stickier products demand more vibration, whereas minimal vibration suffices for dry, free-flowing items, ensuring gentle handling.

Custom Bucket Design and Size

 

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Further reading:
Packing Machine - Multiwigh Multihead Weigher 14 Head ...

Larger products necessitate bigger buckets to accommodate substantial quantities. Bucket shape, whether polygonal or rounded, impacts cleaning ease and hygiene, especially for sticky substances.

Determining Maximum Weight Capacity

 

The weigher's maximum capacity is essential, influenced by head size and number. Higher weight capacities are necessary for larger produce or bulk processing, factoring in load cell weight and discharge range.

Prioritizing Speed for Enhanced Productivity

 

Fast processing speeds reduce turnaround times, beneficial for handling large volumes. Weighers' performance is gauged by weight per minute, with higher rates indicating faster operations. However, delicate products may need slower speeds for careful handling.

Compact Machine Design

 

Maximize performance within space constraints by selecting compact multihead weighers that offer efficiency in speed, accuracy, and compatibility.

Additional Features for Optimal Operations

 

Optional features enhance multihead weigher utility, such as:

• Minimizing waste to reduce costs and enhance sustainability

• User-friendly interfaces like touch screens and preset programs

• Real-time data collection for performance analysis

• Automatic feeding control

Ensure your chosen machine aligns with your products and operational goals.

Summary

 

If you need help finding the right multihead weigher for your production lines, our expert food engineering consultants can help. They’re on hand to make your processes as efficient as possible, so you can save money and run your operations as smoothly and stress-free as possible. Contact FESS Group today to discuss your needs. 

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