For liquid fertilizers, water-soluble fertilizers, and agricultural nutrient solutions, small-dose stick bag packaging has become increasingly popular due to its convenience, accurate dosage, and easy transportation.
However, many small and medium-sized fertilizer manufacturers face a common challenge: how to efficiently load thousands of small liquid stick bags into bottles with consistent quantity and stable production speed.
Traditional manual bottle loading requires workers to count stick bags and place them into bottles by hand. This method is slow, labor-intensive, and may cause problems such as missing stick bags, inconsistent quantities, and unstable production efficiency.
This case presents a complete Liquid Fertilizer stick bag-to-Bottle Packaging Line, integrating a Multi-Lane Back Seal Liquid Packaging Machine, Incline Conveyor, Counting & Discharge Unit, Bottle Loading Unit, Four-Head Rotary Capper, and inspection system.
The complete production line automates the process from liquid fertilizer filling to finished bottled product output.
PACKAGING SOLUTION OVERVIEW
This packaging system is designed for liquid fertilizer products using a stick bag-in-bottle packaging format.
The production process includes:
- Automatic liquid stick bagproduction;
- stick bagconveying and counting;
- Automatic bottle loading;
- Bottle capping;
- Cap inspection;
- Finished product collection.
This solution helps fertilizer manufacturers reduce manual operations while improving packaging consistency and production efficiency.
STICK BAG AND BOTTLE PACKAGING FORMAT
Inner Bag: 10ml Round Corner Back Seal Liquid Bag
The inner bag adopts:
- Round corner back seal design;
- 10ml small-dose filling volume;
- Straight sealing pattern.
The round corner design improves product appearance and reduces the risk of sharp edges damaging the outer bottle during transportation.
The liquid fertilizer is automatically measured, filled, sealed, and cut by the Multi-Lane Back Seal Liquid Packaging Machine, producing individual ready-to-use stick bags.
Outer Packaging: 20 stick bags per Bottle
The finished stick bags are automatically counted and loaded into plastic bottles.
Each bottle contains:
20 liquid fertilizer stick bags
The automatic system completes:
- stick bagconveying;
- Quantity counting;
- Grouping;
- Bottle loading;
- Bottle capping.
Compared with manual operation, the automated system ensures accurate stick bag quantity and improves packaging efficiency.
EQUIPMENT COMPOSITION OF THE LIQUID FERTILIZER STICK BAG -TO- BOTTLE PACKAGING LINE
The complete packaging line consists of multiple automated units working together.
Equipment | Quantity | Main Function |
Multi-Lane Back Seal Liquid Packaging Machine | 1 unit | Performs liquid measuring, stick bag forming, filling, sealing, and cutting |
Incline Conveyor | 1 unit | Transfers finished stick bags to the counting section |
Counting & Discharge Unit | 1 unit | Counts stick bags accurately and discharges them according to preset quantities |
Bottle Orienter | 1 unit | Automatically arranges empty bottles in the correct position |
Bottle Inverting Unit | 1 unit | Inverts bottles according to loading requirements |
Bottle Loading Unit | 1 unit | Loads counted stick bags into bottles automatically |
Bottle Erecting Unit | 1 unit | Returns bottles to upright position after loading |
Buffer Conveyor | 1 unit | Provides temporary storage and ensures continuous operation |
Four-Head Rotary Capper | 1 unit | Automatically tightens bottle caps |
Misaligned Cap Rejector | 1 unit | Detects and removes bottles with incorrect cap positions |
Semi-Automatic Bottle Collecting Unit | 1 unit | Collects finished bottled products |
AUTOMATIC PACKAGING PROCESS
The complete liquid fertilizer stick bag-to-bottle packaging process includes:
Step 1: Liquid Fertilizer Filling
Liquid fertilizer is supplied to the Multi-Lane Back Seal Liquid Packaging Machine through the feeding system.
The machine automatically completes:
- Film forming;
- Liquid measuring;
- Filling;
- Heat sealing;
- stick bag
Step 2: Stick Bag Conveying and Counting
The Incline Conveyor transfers finished stick bags.The Counting & Discharge Unit counts stick bags according to the preset quantity.
For this project:
20 stick bags are counted for each bottle.
Step 3: Automatic Bottle Loading
Empty bottles are organized by the Bottle Orienter and transferred through the conveyor system.
The Bottle Loading Unit automatically places counted stick bags into bottles.
This eliminates manual counting errors and improves production stability.
Step 4: Bottle Capping and Inspection
After stick bag loading:
- Bottles are transferred through the conveyor system;
- The Four-Head Rotary Capperautomatically tightens caps;
- The Misaligned Cap Rejectordetects and removes abnormal bottles.
The Semi-Automatic Bottle Collecting Unit collects qualified bottles.
SUITABLE APPLICATIONS
The Liquid Fertilizer stick bag-to-Bottle Packaging Line is suitable for:
- Liquid fertilizer manufacturers;
- Water-soluble fertilizer producers;
- Plant nutrition solution companies;
- Agricultural chemical manufacturers.
Typical applications include:
- Liquid fertilizers;
- Water-soluble fertilizers;
- Plant nutrient solutions;
- Agricultural liquid formulations.
The equipment configuration can be customized according to:
- Product viscosity;
- Chemical characteristics;
- stick bagsize;
- Bottle size;
- Production capacity requirements.
The Liquid Fertilizer stick bag-to-Bottle Packaging Line integrates automatic stick bag packaging, counting, bottle loading, capping, and inspection into a complete production solution.
For small and medium-sized fertilizer manufacturers, this automated packaging system helps reduce labor costs, improve production efficiency, and achieve consistent packaging quality.
With flexible configuration options, the packaging line can be customized according to different liquid fertilizer products and production requirements, providing a reliable solution for modern fertilizer packaging.
