All food-contact parts are made of 304/316 stainless steel. For corrosive or viscous materials, we offer options like Teflon or other food-grade anti-corrosion coatings on contact surfaces.
3-Side Seal Bag Packaging Solutions
3-side seal bags are widely used for flat, compact packaging of solid and granular products. Our automatic pouch packing machines deliver high-speed, consistent sealing on three sides—ideal for snacks, hardware, and dry goods.
Keywords: 3-side seal bag packaging machine, automatic pouch packing machine, granular packing machine, snack packaging machine, flat pouch sealer.
What is a 3-Side Seal Bag?
A 3-side seal bag (also called a flat pouch or three-seal pouch) is created by sealing three edges of two film layers. It is simple, cost-effective, and offers excellent print visibility, making it a versatile choice for various industries
Key terms: 3-side seal bag, flat pouch, three-seal pouch, simple packaging, print-friendly pouch.
Recommended Packaging Machines
Machines and modules suitable for 3-Side Seal Bag packaging—choose based on pouch structure, filling method, and target output.
Keypack Intelligent One-Stop Nitrogen-Filled Fresh-Keeping tea bag packaging machine
One-stop nitrogen-filled fresh-keeping tea bag packaging machine for automated inner and outer bag packaging. Features triangle bag making, filling, thread and tag attachment, and nitrogen filling at 20-40 packs/min. Suitable for tea, herbal tea, flower tea, fruit tea, and coffee powder packaging.
Keypack Intelligent KL8-200 8-station Pouch Feeding Machine - For Pre-Made Bags
8-station pouch feeding machine for premade bag packaging. Integrates multi-head combination weigher and screw filling system for automated bag feeding, filling, and sealing. Suitable for snacks, nuts, coffee, powder, and granular materials packaging.
Kunbupack Liquid 3-Side Seal Bag Vertical Form-Fill-Seal Machine
PLC servo-driven vertical form-fill-seal machine for liquid packaging in food, pharmaceutical and chemical industries. Features stainless steel construction and precision metering for sauces, condiments, beverages and liquid materials.
Kunbupack Powder 3-Side Seal Bag Vertical Form-Fill-Seal Machine
Professional 3-side seal vertical packaging machine designed for powder materials with dust-proof structure and precision screw metering. Ideal for milk powder, seasoning powder and other powdery products packaging.
Kunbupack Granule 3-Side Seal Bag Vertical Form-Fill-Seal Machine
Servo-driven 3-side seal vertical packaging machine designed for granular materials with precision metering system. Ensures accurate bag weight and secure sealing for food, pharmaceutical and chemical industry applications.
Specs & Options
Our packaging solutions provide premium, hermetic sealing for granules, powders, and liquids in the food and medical industries.
The system is highly adaptable, supporting both continuous film-forming and premade pouch (Pick-Fill-Seal) workflows:Pouch Design: Supports standard 4-side seal, premade shaped pouches, custom outlines, and window areas; features precise artwork registration via color mark detection.
Seal & Feed Structure: Flexible configuration for roll-fed film or automated premade pouch loading, ensuring enhanced package symmetry and superior shelf stability.
Functional Features: Automated pouch opening (for premade bags), tear notch, sponge air exhaust for slim profiles, or gas inflation for product protection.
System Control: PLC servo drive with a touchscreen interface for synchronized parameter storage and fast transitions between different pouch formats.
Coding & Traceability: Integrated ribbon coding or inkjet options for high-clarity date, batch, and QR/barcode printing.
Line Integration: Fully automated process covering pouch feeding or forming, metering, filling, sealing, and counting systems.
Why KEYPACK
Why Choose Keypack Intelligent? We provide reliable, turn-key packaging solutions designed for your success. Our precision engineering minimizes waste and maximizes your uptime, while our global support network ensures seamless operation. We partner with you to deliver not just machinery, but lasting value and growth.
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Over a decade of experience
50000 m²
Manufacturing facility
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CasesSuccessful applications
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Engineers Technical team
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Countries Global presence
Frequently Asked Questions
Are the machine materials food-grade compliant?
Are you a manufacturer or a trading company?
What certifications do your machines hold, and which markets have you exported to?
Which industries do your packaging solutions serve?
Do you offer full "Turnkey" projects and flexible equipment?
What after-sales support and quality guarantee do you provide?
How are installation and training provided?
What is the warranty? Are spare parts readily available?
Get a Custom Solution Quote
Send your requirements and get a layout suggestion.
Please provide:
Your product (power, liquid, granule; Specific products are better)Packaging format (e.g., pouch, bottle,can).
Target weight/volume.
Required speed (bags/min).
Film/material type.
Country of operation.Contact (Email/WhatsApp).
