Product Focus:
Multihead Weighers

Multihead weighers are responsible for generating precise measurements of products. They are very valuable pieces of equipment due to their ability to operate with high levels of accuracy, speed and efficiency.

Multihead weighers are able to measure a wide range of product types including everything from leafy greens and vegetables, cooked products and dry foods to frozen foods, fruits, nuts and seeds.

Multihead weighers are also used to accurately fill a range of packaging and containers including bags, trays, tubs, buckets, boxes, jars and even to distribute ingredients into other machines. They are also sometimes used to weigh individual packs into multipacks.

The Japanese food company, Ishida, invented the multihead weigher back in the 1970s. It was a machine that revolutionised the food industry because of its high speeds and accuracy.
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The earliest use of the invention was limited to the mere weighing of vegetables. However, during the 1980s, multihead weighers began to be used for the weighing and packaging of confectionery and snacks. In today’s food industry, thanks to the precision and rapidness of these machines, they are used to weigh almost all food products on the market, including meat and fish, dairy, and grains. Complex products such as ready meals are also manufactured using multihead weighers.

Multihead weighers function by having a number of ‘hoppers’ ordered into columns. Each column is equipped with a weighing head.
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First, the product is fed to the top of the multihead weigher where it is released into hoppers. Next, the machine's computer system will determine which hopper combinations are closest to the target weight - this is typically 100 grams.
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Then, all hoppers of an optimal combination discharge their products into a weigh hopper underneath (once it becomes clear). The process then repeats with a new product.

Multihead weighers offer a number of major advantages that improve the efficiency of food production. Let's take a closer look at some of these below.

Greater Efficiency
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‍Multihead weighers are highly valuable because they enable food manufacturing companies to meet market demands. Performance is significantly enhanced when you get work done with a high-speed and piece of machinery as opposed to human hands.

Not only are multihead weighers fast, but they are also immensely accurate. The advanced technology used inside the machine avoids mistakes that manual food packagers can make, like misinterpreting size and miscalculating weight. Multihead weighers can offer companies a significant increase in food production efficiency and enable manufacturers to maintain high-quality products.
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More Choice Of Bags

A huge variety of bags can be filled using these machines. From large catering bags to very small bags for products like crisps, all bag sizes can be processed with the utmost precision and efficiency. Multihead weighers are used to fill all sorts of things from bags, trays, tubs, buckets, boxes, jars and even other machines, as well as weighing packs into multipacks.
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Mix-Weighing

Multihead weighers have the capacity to hold and process up to eight mixed components very rapidly and accurately. Companies that utilise mix-weighing in food production will find that multihead weighers make the whole process more practical.
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Products with a number of different components or ingredients can be mixed on a multihead weigher. The weigher is divided into sections, each with its own in-feed. For instance, a cereal containing dried fruit and nuts in addition to lower cost ingredients such as oats of flakes could be weighed on a multihead with eight heads serving each of the more costly ingredients, plus four heads designated to the others — therefore ensuring that ingredients are correctly distributed into the product in the desired ratios.

There are a range of multihead weighers available on the market designed for food production businesses of all types and sizes. Some of the most popular options include:

A10 10 Head Weigher

• Weight Range: 10 – 1000g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 70 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 7’ Touchscreen
  

• Bucket Volume: 1.6 Litre
  

Option

Dimpled Plate
Infeed Load Cell Detection
2.5 Litre Bucket
Standard Timing Hopper
Duck Mouth Timing Hopper
10’ Touchscreen

Multi-Mouth Feeder
Rotary Top Hopper
Multi-Head Load Cell
Watertight Cabinet
Air Drying System
60° Discharge Chute Design

Sus 304 Actuator Cover
AISI 316 Contacting Parts
Teflon Coating W280C /
B380C
Isolator
60Hz Configuration

A10S 10 Head Weigher Compact

• Weight Range: 5 – 200g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 70 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 7’ Touchscreen
  

• Bucket Volume: 0.5 Litre
  

Option

Dimpled Plate
Standard Timing Hopper
10’ Touchscreen
Watertight Cabinet

Air Drying System
60° Discharge Chute Design
AISI 316 Contacting Parts

Teflon Coating W280C /
B380C
Isolator
60Hz Configuration

A 14 14 Head Weigher

• Weight Range: 10 – 2000g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 120 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 7’ Touchscreen
  

• Bucket Volume: 1.6 Litre
  

Option

Dimpled Plate
Infeed Load Cell Detection
2.5 Litre Bucket
Standard Timing Hopper
Duck Mouth Timing Hopper
10’ Touchscreen

Multi-Mouth Feeder
Rotary Top Hopper
Multi-Head Load Cell
Watertight Cabinet
Air Drying System
60° Discharge Chute Design

Sus 304 Actuator Cover
AISI 316 Contacting Parts
Teflon Coating W280C /
B380C
Isolator
60Hz Configuration

A14 Head Cheese Weigher

• Weight Range: 10 – 2000g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 70 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 7’ Touchscreen
  

• Bucket Volume: 1.6 Litre
  

• Bucket Type: Dimpled Buckets
  

Option

2.5 Litre Bucket
Infeed Load Cell Detection
Standard Timing Hopper
10’ Touchscreen

Multi-Head Load Cell
Watertight Cabinet
Air Drying System
Sus 304 Actuator Cover

Teflon Coating W280C /
B380C
Isolator
60Hz Configuration

A14S 14 Head Weigher Compact

• Weight Range: 5 – 200g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 120 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 7’ Touchscreen
  

• Bucket Volume: 0.5 Litre
  

Option

Standard Timing Hopper
10’ Touchscreen
Watertight Cabinet

Air Drying System
AISI 316 Contacting Parts
Teflon Coating W280C /
B380C

Isolator
60Hz Configuration

A16S 16 Head Duplex Weigher

• Weight Range: 10 – 200g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 180 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 10’ Touchscreen
  

• Bucket Volume: 0.5 Litre
  

Option

Dimpled Plate
High Speed Timing Hopper

Teflon Coating W280C /
B380C

Isolator
60Hz Configuration

A20 20 Head Weigher

• Weight Range: 10 – 200g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 120 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 10’ Touchscreen
  

• Bucket Volume: 1.6 Litre
  

Option

Dimpled Plate
Rotary Top Hopper
2.5 Litre Bucket
Twin Bagger Timing Hopper

High Speed Timing Hopper
Air Drying System
Sus 304 Actuator Cover
AISI 316 Contacting Parts

Teflon Coating W280C /
B380C
Isolator
60Hz Configuration

A24S 24 Head Weigher

• Weight Range: 10 – 200g
  

• Weight Accuracy: X (0.5)
  

• Maximum Speed: 60 Weighs per Minute
  

• Motor Type: Step Motor
  

• Display Screen: 10’ Touchscreen
  

• Bucket Volume: 0.5 Litre
  

Option

Dimpled Plate
Standard Timing Hopper

Teflon Coating W280C /
B380C

Isolator
60Hz Configuration