Granule Filling Machine Selection Guide

Granule Filling Machine Selection Guide  ：How to Choose the Right Granule Filling Machine

Find the Right Granule Filling Machine

Answer 5 simple questions to find the most suitable filling solution for your product.

Questions 1 :What product are you filling?

Seeds,Grains,Nuts,Peanut,Cashew,Almonds ,Pistachios,Brazil Nuts,Brazil Nuts,Chickpeas,Dried Fruits,Snacks food,Dried Fruits,Candy,Gummies,Coffee Beans,Popcorn,Pet Food,Beans,Rice,Meat,Fresh meat,Other Granules.

Questions 2 :What is your target filling weight?

(1)50–100 g  (2)100–500 g (3)500 g–1 kg  (4)1–5 kg  (5)Other

Questions 3 :How many cans/bottle/bag you want to fill per minute ?

(1)1-20 pcs/hour  (2)20-30pcs/hour  (3) 20-45 pcs/min  (4)45-70pcs/min ...

Questions 4: Do you have any requirement of filling accuracy ?

(1) Standard  (2)Good   (3)High

For the accuracy it depends on machine running speed,product granules size and product status 

Questions 5:What package are you using?

(1)Can :metal can, plastic can, paper can, aluminum can   

(2)Bottle/Jar : plastic bottle, glass jar

(3)Pouch /bag :Stand-Up Pouch,Stand-Up Zipper Pouch,3-Side Seal Pouch etc.

Step to judge

Product → Weight → Accuracy → Speed → Package → Machine

It can’t just follow the product to select the filling machine , for example filling nuts, it has 100g , 500g , 1kg , difference filling weight speed and filling machine also difference .

For example

100g/60cans per minutes

500g/30 cans per minute

1000g /20 cans per minute

If need one machine cover above speed , that need consider the top high as reference ,that it need use mutil weigher filling machine 

What kind of filling machines recommend ?

Here 3 types granules filling machine 

Type A :Linear Weigher

Type B :Multihead Weigher

Type C: Volumetric Cup Filler(Measurecup filling machine )

Type A :Linear Weigher

Recommended for Small & Medium Production

Suitable for :

Seeds,Sunflower seeds,Beans,Cereals,Coffee beans,Small granules

Recommended :

Production approximately 10–25 packs/min

Medium accuracy requirement

Small or medium production

Simple operation required

Cost-effective solution preferred

Typical Line

Can Feeding → 4-Head Linear Weigher → Can Seamer →Capping machine→Labeling Machine(Can body labeling machine / Cap top lableing machine )→  Date Coder → Can Collector

Type B :Multihead Weigher

Recommended for High-Speed & High-Accuracy Production

Nuts,Almonds,Cashews,Candy,Gummies,Dried Fruits,Potato Chips,Pet Food

Recommended :

High production speed

High weighing accuracy

Irregular product

 High-value products

Automatic production line required

Typical Line

Can accumulation table →Z Elevator → Multihead Weigher → Can/Jar Feeding → Capping or Seaming → Labeling machine → Collector

Type C: Volumetric Cup Filler(Measurecup filling machine )

Recommended for Stable-Density Granules

Salt,Popcorn,Rice,Sugar,Seeds,Other free-flowing granules

Recommended when:

Product density is relatively stable

 High precision is not the top priority

Cost-effective solution is preferred

 High-speed volumetric filling is required

Typical Line

Elevator → Volumetric Cup Filler → Bag/Can Filling → Sealing → Finished Product

Fast selection

Recommended Solution

Example 1

Product: Sunflower Seeds
Weight: 250 g
Speed: 15 cans/min
Accuracy: Medium
Package: Metal Can

Recommended:

4-Head Linear Weigher + Automatic Can Seamer

Why?

The production speed is moderate and the product is a relatively small, free-flowing granule. A linear weigher provides a practical balance between accuracy, speed and investment.

Example 2

Product: Mixed Nuts
Weight: 500 g
Speed: 50 cans/min
Accuracy: High
Package: Metal Can

Recommended:

Multihead Weigher + Automatic Can Seamer(if have residual oxygen requirement , can use nitrogen room can seaming machine  / Vacuum nitrogen flush gas can sealing machine)

Why?

Mixed nuts have different sizes and shapes. High-speed combination weighing can provide better accuracy and reduce product giveaway.

Example 3

Product: Popcorn
Weight: 100 g
Speed: 40 packs/min
Accuracy: Standard
Package: Bottle/Pouch

Recommended:

Volumetric Cup Filler + capping machine /Premade bag packing machine

Why?

Popcorn is a lightweight, free-flowing product. If bulk density is relatively stable and filling tolerance is acceptable, volumetric filling can provide a cost-effective solution.

Need a More Accurate Recommendation?

Machine selection depends on actual:

 Product size

 Product density

 Product shape

Target weight

Required speed

Accuracy

Packaging container

Send us your product information and we can recommend the most suitable granule filling machine and complete packaging line.

When select machine , what need to noted :

1.Evaluate Physical Material Properties

Before choosing hardware, analyze the physical characteristics of your raw granule:

(1)Flowability (Angle of Repose): Poorly flowing granules require dimpled weigh buckets, steep chute angles (45°–60°), and active vibratory hoppers.

(2) Friability & Delicacy: Delicate items (e.g., freeze-dried fruits, crisp chips) require soft-touch TPU bucket coatings, reduced drop heights, and inclined discharge chutes.

(3) Hygroscopic & Sticky Tendencies: Water-absorbing or oil-coated granules (e.g., gummy candies, seasoned snacks) need Teflon coatings, air-assisted discharge, or dehumidified enclosures.

Verify Sanitary Standards and Construction Materials

Select machine finishes based on industry regulations:

Food Grade: Contact parts in SUS304 stainless steel; IP65 rating for wet washdown environments.

Pharmaceutical Grade : Contact parts in SUS316L stainless steel

Frequently Asked Questions

What is the difference between a volumetric cup filler and a multihead weigher?

A volumetric cup filler measures product by volume inside a physical cup, while a multihead weigher measures product by exact weight using multiple electronic load cells. Volumetric fillers are faster and less expensive but vulnerable to weight errors caused by density shifts. Multihead weighers offer superior accuracy and eliminate product giveaway.

How do I prevent product breakage when filling fragile granules?

To protect fragile granules (such as freeze-dried products or fragile snack foods), specify equipment with low drop heights, dimpled/cushioned weigh hoppers, soft TPU linings, and steeply angled discharge chutes

How often should line checkweighers be integrated into a granule line?

Integrating a checkweigher is recommended for all fully automated lines. It provides real-time feedback loops to the filling machine, auto-rejects non-compliant weights, and ensures compliance with legal net weight tolerances .