Multilane Sachet Production Line | Four-Side Seal, Counting & Flow Pack Repacking
Product Overview
The 4-Side Seal Liquid Sachet Automatic Counting and Cartoning Line is designed for the secondary packaging of small liquid sachets after primary sachet packing.
This line is especially suitable for 4-side seal sachet products such as pop-ice, ketchup, mayonnaise, salad dressing, chili sauce, soy sauce, honey, syrup and other liquid or semi-liquid products packed in small sachets.
After the sachets are produced by the multi-lane packing machine, they are transferred by the counting conveyor, grouped according to the preset quantity, automatically dropped into cartons, and then conveyed to the carton sealing section.
This system helps reduce manual counting and manual loading while improving packing efficiency and carton quantity consistency.
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Complete Multilane Sachet Packaging & Repacking Line
The production line combines three major packaging processes:
1. Multilane Four-Side Seal Sachet Making
The primary packaging section uses a 4–12 lane sachet packing machine.
Multiple sachets are simultaneously formed, dosed, sealed and cut during each machine cycle.
Depending on the application, the system can be configured for:
Liquid
Paste
Powder
Granules
Jelly
Sauce
Syrup
Beverage liquid
Oral liquid
Cosmetic liquid
Other free-flowing or pumpable products
The four-side sealing structure provides a clean and professional sachet appearance and is widely used for small single-dose and portion packs.
2. High-Speed Multilane Production
The machine can be customized with 4 to 12 lanes according to the required production capacity.
Typical operating speed is approximately 25–50 cuts/min.
Production Capacity
| Lanes | Machine Speed | Approx. Output |
|---|---|---|
| 4 Lanes | 25–50 cuts/min | 100–200 sachets/min |
| 6 Lanes | 25–50 cuts/min | 150–300 sachets/min |
| 8 Lanes | 25–50 cuts/min | 200–400 sachets/min |
| 10 Lanes | 25–50 cuts/min | 250–500 sachets/min |
| 12 Lanes | 25–50 cuts/min | 300–600 sachets/min |
Maximum output: up to approximately 600 sachets/min.
Actual production speed depends on product characteristics, sachet size, filling volume, packaging film and machine configuration.
3. Automatic Sachet Counting
After the four-side seal sachets are produced, they are automatically discharged to the downstream conveyor and counting system.
The counting section can:
Receive sachets from multiple lanes
Separate and organize finished packs
Count preset quantities
Group sachets automatically
Transfer each group to the flow wrapper
For high-speed multilane production, automatic counting helps eliminate the bottleneck caused by manual collection and counting.
4. Flow Pack Repacking Line
After counting and grouping, individual sachets are transferred to an automatic horizontal flow pack machine.
The machine repacks multiple primary sachets into one larger secondary pillow bag.
Typical secondary packaging formats include:
5 sachets per bag
10 sachets per bag
20 sachets per bag
Customized pack quantities
The quantity per outer bag can be adjusted according to the customer's retail or distribution requirements.
Production Process
The complete workflow is:
Product Feeding
↓
Multilane Sachet Forming
↓
Filling / Dosing
↓
Four-Side Sealing
↓
Cutting
↓
Automatic Discharge
↓
Sachet Counting
↓
Grouping
↓
Flow Pack Repacking
↓
Finished Multipack
This integrated design connects primary packaging and secondary packaging into one continuous production line.
Main Advantages
High Production Capacity
With 4–12 lanes and up to approximately 600 sachets/min, the system is suitable for medium- and high-capacity manufacturing.
Complete Primary + Secondary Packaging
One system handles both individual sachet production and multipack repacking.
Reduced Labor
Automatic discharge, counting, grouping and flow wrapping reduce manual handling between packaging stages.
Accurate Counting
Preset quantities can be automatically grouped before entering the secondary packaging machine.
Flexible Sachet Format
The line can be adapted to different sachet widths, lengths, filling volumes and products.
Flexible Secondary Pack Quantity
The number of sachets per flow pack can be customized according to different market requirements.
Suitable for Multiple Products
Different filling systems can be configured for liquid, paste, powder and granular products.
Main Parameters
| Parameter | Specification |
|---|---|
| Machine Type | Multilane Sachet Production Line |
| Primary Packaging | Four-Side Seal Sachet |
| Number of Lanes | 4–12 Lanes |
| Machine Speed | 25–50 Cuts/Min |
| Production Capacity | Approx. 100–600 Sachets/Min |
| Filling System | Customized According to Product |
| Downstream System | Automatic Counting & Grouping |
| Secondary Packaging | Horizontal Flow Pack Repacking |
Available Filling Systems
Different dosing systems can be selected according to the product:
| Product | Filling System |
|---|---|
| Free-Flowing Liquid | Liquid Pump |
| Viscous Liquid / Paste | Servo Piston Pump |
| Powder | Auger Filler |
| Fine Powder | Screw Dosing System |
| Granules | Volumetric Cup |
| Small Particles | Multihead / Volumetric Dosing |
| Jelly / Syrup | Liquid or Piston Pump |
Optional Configuration
| Option | Description |
|---|---|
| 4–12 Lane Configuration | Customized according to required capacity |
| Servo Filling System | Improved filling accuracy and adjustment |
| Product Feeding System | Automatic upstream product supply |
| Mixing Tank | For liquid or paste products requiring agitation |
| Multi-Tank System | For multiple flavors or formulations |
| Liquid Level Control | Automatic feeding and level monitoring |
| CIP Cleaning | Cleaning solution for liquid-contact parts |
| Easy-Tear Notch | Easy opening for individual sachets |
| Date Coding | Production date / batch / expiry printing |
| Automatic Counting | Counts finished sachets by preset quantity |
| Automatic Grouping | Prepares sachets for secondary packaging |
| Flow Pack Machine | Repackages sachets into larger pillow bags |
| Check Weigher | Optional downstream weight inspection |
| Metal Detector | Optional product safety inspection |
Suitable Applications
This multilane sachet production and repacking system can be used for:
Jelly liquid sachets
Juice sachets
Syrup sachets
Sauce sachets
Condiment sachets
Oral liquid sachets
Cosmetic liquid sachets
Detergent sachets
Honey sachets
Powder sachets
Nutrition powder sachets
Sugar and salt sachets
Pharmaceutical or supplement sachets
Other small-dose sachet products
Why Add a Flow Pack Repacking System?
A high-speed multilane machine can produce hundreds of sachets every minute.
If these sachets are manually collected, counted and packed into larger bags, the secondary packaging process can become the main production bottleneck.
The automatic counting and flow pack repacking system allows the production line to maintain continuous output from primary packaging through to finished multipacks.
This is especially useful for:
High-volume sachet factories
Contract packers
Multi-SKU manufacturers
Retail multipack production
Export packaging
Labor-saving automation projects
Custom Multilane Sachet Production Line
SAMFULL can configure the complete line according to:
Product characteristics
Sachet dimensions
Filling weight or volume
Number of lanes
Required production speed
Filling system
Number of sachets per multipack
Flow pack bag size
Upstream feeding requirements
Downstream automation requirements
The result is a complete sachet making, counting and secondary repacking solution rather than a standalone packaging machine.
