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Candy Jar Weighing, Capping & Labeling Line | Case Study
FOOD INDUSTRY · SUCCESS CASE
Automatic Candy Jar Weighing, Capping & Labeling Line
A complete PET jar packaging solution for gummies, vitamins and mixed confectionery, integrating bottle unscrambling, multi-head weighing, filling, capping and positioning labeling.
What Is a Candy Jar Packaging Line?
A candy jar packaging line is an automated system that feeds empty jars, weighs and dispenses candy, applies caps and positions labels in one connected production flow. In this Grepack project, a multi-head weigher handles mixed gummies while the downstream capping and labeling systems prepare each PET jar for retail display.
PackagePET candy jars | ProductMixed gummies & vitamins | Core ProcessWeigh · fill · cap · label |
Project Background
A confectionery manufacturer needed a connected packaging line for mixed gummies packed in PET jars. The project required stable jar feeding, controlled candy dispensing, reliable cap placement and consistent label positioning.
The product mix included candies with different shapes and sizes. This made the weighing and filling stage especially important: the system needed to handle the pieces gently while maintaining a continuous flow into each jar.
Customer Packaging Challenges
Mixed Candy ShapesIrregular gummies can bridge, overlap or flow inconsistently during filling. | Continuous Jar FeedingEmpty PET jars must enter the filling section in the correct orientation without excessive manual handling. |
Stable Cap ApplicationCaps must be placed and tightened consistently to support secure retail packaging. | Accurate Label PositioningLabels must appear in the intended position on every jar for a uniform shelf presentation. |
Recommended Packaging Process
01 | Automatic Bottle Unscrambler |
02 | Multi-Head Weigher |
03 | Jar Filling Interface |
04 | Star-Wheel Capping Machine |
05 | Positioning Labeling Machine |
How Each Machine Solves the Packaging Problem
Gentle and Consistent Candy Handling
The multi-head weigher separates the weighing task across multiple heads and selects a suitable combination for each discharge. This configuration is commonly used for free-flowing pieces such as gummies, hard candy and vitamin gummies. Product trials are still required to confirm the final settings for a specific candy shape and coating.
Controlled Jar Movement
The bottle unscrambler and conveyor coordinate jar feeding before the filling stage. Star-wheel indexing then controls the jar position during capping, helping keep the process stable from filling through closure application.
Repeatable Label Placement
The positioning labeling machine identifies the required jar orientation before label application. This helps maintain a consistent front-facing label position across the finished batch.
Suitable Products and Containers
Product Types | Container Types |
Gummy candy and fruit gummies | PET jars |
Vitamin gummies and supplements | Plastic bottles and wide-mouth jars |
Hard candy and other free-flowing pieces | Rigid containers validated by sample testing |
Configuration note: Filling range, output, weighing accuracy and compatible jar dimensions must be confirmed from the actual product, jar, cap and label samples. This case page does not claim unverified project figures.
Project Video
Watch the complete gummy and vitamin bottling line, including the multi-head weigher, jar filling, capping and positioning labeling stages.
Frequently Asked Questions
What products can a multi-head weigher fill into jars?
It is commonly used for free-flowing pieces such as gummies, hard candy, vitamin gummies, nuts and similar products. Final suitability depends on product size, stickiness, fragility and coating.
Can the line support different jar sizes?
Jar compatibility is evaluated from the diameter, height, mouth size, cap and label. Change parts or adjustments may be required for additional formats.
Why use a positioning labeling machine?
It detects the jar orientation and applies the label in a repeatable position, which is useful when the container or artwork has a defined front-facing side.
What information is needed for a quotation?
Provide the candy sample, target weight, jar dimensions, cap sample, label size, required output, destination country and available workshop layout.
Related Grepack Solutions
Explore more Grepack Industry Solutions for food, liquid and complete packaging line projects.
Request a Candy Jar Packaging Solution
Send Grepack your candy, jar, cap and label samples. Our engineering team will evaluate the material behavior and propose a suitable weighing, filling, capping and labeling configuration.
Related keywords: candy jar packaging line · gummy filling machine · multi-head weigher filling line · candy bottling machine · jar capping machine · positioning labeling machine · vitamin gummy packaging line
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