Three Side Seal Packaging Machine | Automatic Pouch Packing
Engineered for high-precision, hermetic pouch forming, precise volumetric dosing, and ultra-high-speed sealing. Ludyway’s automated three side seal packaging systems deliver industry-leading efficiency across powder, granule, paste, and liquid applications in food, pharmaceutical, cosmetic, and chemical sectors.
What is a Three Side Seal Packaging Machine?
Ludyway’s automatic three-side seal pouch packaging systems utilize intelligent servo-driven multi-axis motion synchronization. By unrolling flexible barrier films across specialized forming triangles or collar assemblies, our machinery automatically aligns the film, creates longitudinal side seals, executes ultra-precise product injection, and thermally seals the top boundary prior to guillotine or tear-notch cutting.
Whether handling free-flowing granules, ultra-fine cohesive powders, viscous gels, or thin liquids, our machines adapt via modular dosing attachments—such as multi-head auger fillers, micro-piston volumetric dispensers, or precision peristaltic pumps. With automated temperature feedback circuits and computerized registration eye-mark tracking, each pouch exhibits uniform seal strength and pristine branding aesthetics.
High-Tech Engineering & Performance Features
Multi-Axis Servo Synchronization
Equipped with independent Panasonic/Schneider servo drive motors that govern film pulling, dynamic cross-sealing jaws, and reciprocating filling nozzles with sub-millimeter positional repeatability.
Intelligent PID Thermal Management
Digital PID controllers coupled with dedicated solid-state relays maintain exact sealing bar temperatures within ±1°C, preventing laminate film scorching, pinhole formation, or weak airtight seams.
Optical Eye-Mark Precision Cut
High-frequency optical sensors continuously scan pre-printed registration markers on laminate film rolls, compensating automatically for film stretching to guarantee razor-sharp graphic alignment.
Hermetic Leak-Proof Sealing
Custom-machined diamond, straight-line, or checkerboard sealing jaws supply uniform pneumatic-mechanical pressure, creating leak-free seals capable of resisting burst pressures up to 0.45 MPa.
Sanitary SUS304 / SUS316L Build
Fully compliant with cGMP, CE, and FDA standards. All product-contact components are engineered from electropolished stainless steel with tool-free disassembly for rapid washdowns.
Industry 4.0 PLC Touch Interface
Intuitive 7-to-10-inch color HMI featuring recipe storage for over 100 package variants, dynamic error diagnostic displays, real-time yield counters, and Ethernet integration for remote telemetry.
Industrial Specifications & Operating Benchmarks
Explore the operational parameters of Ludyway’s automatic three-side seal sachet and pouch packing machinery series. Custom lane configurations, speed calibrations, and material customizations are engineered to meet specific industrial output requirements.
| Specification Parameter | Single-Lane Model (LW-3S100) | Multi-Lane High Speed (LW-3S600) | Heavy-Duty Viscous Liquid (LW-3SL800) |
|---|---|---|---|
| Packaging Speed | 30 – 80 pouches/min | 120 – 480 pouches/min (Multi-lane) | 40 – 160 pouches/min |
| Pouch Width Range | 25 mm – 120 mm | 30 mm – 90 mm per lane | 40 mm – 160 mm |
| Pouch Length Range | 40 mm – 180 mm | 50 mm – 200 mm (Adjustable) | 60 mm – 220 mm |
| Filling Dosing Range | 0.5 g – 100 g / 1 ml – 100 ml | 1 g – 50 g / 1 ml – 50 ml per lane | 10 ml – 250 ml |
| Filling Accuracy | ≤ ± 1.0% (Product dependent) | ≤ ± 0.8% (Multi-axis auger/piston) | ≤ ± 0.5% (Servo-piston drive) |
| Applicable Film Laminates | PET/AL/PE, PET/PE, NY/AL/PE, Paper/PE | Multi-layer barrier films, BOPP, Foil | Chemical-resistant barrier films, Nylon foil |
| Max Film Roll Diameter | 320 mm (Core Ø 76 mm) | 450 mm (Core Ø 76 mm) | 400 mm (Core Ø 76 mm) |
| Compressed Air Demand | 0.6 MPa, 0.25 m³/min | 0.6 – 0.8 MPa, 0.55 m³/min | 0.6 MPa, 0.35 m³/min |
| Electrical Power Supply | 220V / 380V, 50/60Hz, 2.2 kW | 380V, 3-Phase, 50/60Hz, 6.8 kW | 380V, 3-Phase, 50/60Hz, 4.5 kW |
| Machine Footprint (L×W×H) | 1100 × 850 × 1750 mm | 1850 × 1400 × 2100 mm | 1500 × 1100 × 1950 mm |
Wide-Ranging Industrial Applications
The distinct geometric advantage of a 3-side seal pouch delivers exceptional volumetric density, product preservation, and brand real estate. Our systems are actively deployed across vital international sectors:
Food & Beverage
- Powders: Instant coffee, seasoning blends, drink mixes, milk powder.
- Granules: Sugar, sea salt, pepper, instant soup broth, seeds.
- Liquids & Sauces: Ketchup, chili paste, soy sauce, mayonnaise, salad dressings.
Pharmaceutical & Health
- Nutraceuticals: Collagen peptides, probiotic powders, electrolyte blends.
- Pharma Dosing: Oral rehydration salts (ORS), cold medicine granules, herbal extracts.
- Medical Solutions: Antiseptic gels, sterile alcohol swab packaging.
Cosmetics & Skincare
- Travel Samples: Face wash, moisturizers, whitening serums, facial creams.
- Hair Care: Single-use shampoos, hair conditioners, treatment oils.
- Lotions: Sunscreen lotions, exfoliating facial mask gels, perfume samplers.
Chemical & Industrial
- Detergents: Liquid dishwashing cleaners, floor disinfectant powders.
- Specialty Chem: Industrial grease, mechanical lubricant oils, adhesives.
- Agriculture: Pesticide granules, water treatment powders, plant nutrients.
How an Automatic 3-Side Seal Pouch Machine Works
Ludyway’s three side seal packaging machinery follows a synchronized, continuous or intermittent vertical cycle to convert raw rollstock film into completely hermetic, portion-accurate pouches in split seconds:
Film Unwinding & Tension Control
The motorized roll carrier continuously feeds web film under dynamic pneumatic dancer arm tensioning. Auto-centering guide rollers eradicate web drift and film vibration at high linear speeds.
Triangular Pouch Former Assembly
The flat sheet travels over a precisely calculated geometric forming triangle or collar, folding the web cleanly in half. This creates the continuous folded edge that distinguishes 3-side seal geometry.
Bottom & Vertical Edge Sealing
Vertically heated sealing dies and horizontal bottom sealing bars close with calibrated pneumatic or servo force, bonding the two opposite sides and bottom into an open-top pocket receptacle.
Micro-Dosing & Product Injection
The integrated filling engine (auger screw, volumetric cylinder, or positive displacement liquid pump) injects the exact quantity into the pouch cavity via anti-drip, dust-suction nozzles.
Top Horizontal Sealing & Coding
The top horizontal heated jaw closes to complete the third seal boundary. Simultaneous thermal transfer or hot-stamp ribbon coders imprint lot numbers, expiration dates, and 2D datamatrix codes.
Notching, Trimming & Discharge
A hardened tungsten alloy blade cuts the finished pouch clean or creates easy-open tear notches / micro-perforations before depositing finished pouches onto an outfeed conveyor for secondary packaging.
Featured Sachet & Pouch Packaging Systems
Select from our top-performing three-side seal and multi-lane pouch packing machinery, precision-crafted to fulfill varying product rheologies and production outputs:
Multi-Lane Sachet Packaging Machine for Powder Granule Liquid Filling
View Specifications
High-Speed Multi-Lane Sachet Packaging Lines for Granules & Powder
View Specifications
Multi-Lane Sachet Packaging Machine for Granules, Powders, Liquids
View Specifications
Premade Pouch Packaging Machine for Granules Powder Liquids Automated System
View Specifications
Automatic CBD Pouch Packing Machine for Granule & Powder Sachet Packaging
View Specifications
Cosmetic Sachet Packaging Machine for Powders & Liquids with Multi-Lane Filling
View Specifications
Pharmaceutical Sachet Packaging Lines for Granules & Powder with Multi-Lane Models
View Specifications
Multi-Lane Sachet Packing Machine for Lubricant Oil, High-Speed Liquid Filling System
View SpecificationsTurnkey Secondary Line Integration
A standalone three side seal pouch packing machine is only the initial link in a fully optimized modern packaging plant. Ludyway engineers complete, seamlessly synchronized turnkey production lines that transition primary sachets into retail-ready distribution cartons and pallet loads.
- Dynamic Checkweighers & Metal Detectors: High-speed weight rejection with optical vision contaminant verification ensuring 100% batch compliance.
- Automated Sachet Counting & Collating: High-speed indexing belts accumulate precise pouch counts (e.g., 10, 20, 30 units) for carton loading.
- Continuous & Intermittent Cartoners: Automatic leaflet insertion, box erection, product loading, and hot-melt glue sealing.
- Robotic Case Packing & Palletizing: End-of-line secondary boxing and automated stretch-film pallet wrapping for logistics protection.
Our integrated lines adhere to central SCADA systems, maximizing Overall Equipment Effectiveness (OEE) while minimizing human manual handling.
Ludyway Machinery | Global Packaging Pioneer
Ludyway stands as one of China’s most trusted manufacturers of advanced packaging equipment and turnkey packaging solutions. Backed by over 30 years of engineering mastery, a state-of-the-art 20,000㎡ smart manufacturing facility, and over 50 intelligent machine models, we deliver rugged, high-performance machinery to enterprise clients in more than 100 countries worldwide.
Quality Assurance & International Compliance
Every three side seal packaging unit leaves our factory after undergoing exhaustive 72-hour continuous test runs, seal integrity vacuum decay analysis, and strict electrical safety validation. Our systems strictly conform to ISO9001 quality management benchmarks and CE machinery safety directives.
Trusted by Industry Leaders & Global Exhibitions
We collaborate with major domestic and international brand partners across pharmaceutical, nutritional, chemical, and food sectors:
International Packaging Industry Expos
Ludyway consistently presents its latest three side seal machinery innovations at world-renowned trade shows including Interpack, ProPak, ALL4PACK, and IPACK-IMA:
Frequently Asked Questions (FAQ)
1. What is the difference between 3-side seal and 4-side seal packaging?
A 3-side seal pouch folds a single roll of film along one boundary and seals the remaining three edges (left, right, top). In contrast, a 4-side seal pouch combines two separate film webs and seals all four perimeter edges. Three side seal pouches consume less packaging film, require simpler former mechanics, and produce a sleek, lightweight sachet.
2. What flexible packaging materials are compatible?
Our machines handle nearly any heat-sealable laminated film, including PET/AL/PE, PET/PE, OPP/CPP, Aluminum Foil laminates, kraft paper with heat-sealable polyethylene coatings, and next-generation recyclable mono-material films (such as all-PE and all-PP barrier substrates).
3. How does Ludyway guarantee zero liquid or powder leakage?
Leak prevention is achieved through dual-zone PID temperature regulation, servo-pressured sealing bars with customized knurling patterns, and anti-drip pneumatic suck-back nozzles for liquids or dust-extraction hoods for powders that prevent product dust from contaminating the sealing zone.
4. How long does pouch size changeover take?
Thanks to quick-release mechanical mounts and digital recipe storage in the touchscreen PLC, length adjustments take less than 3 minutes digitally. Width adjustments requiring a former swap typically take 15 to 25 minutes using tool-free locking levers.
5. Can nitrogen gas flushing be integrated for perishable goods?
Yes. We provide integrated food-grade nitrogen (N2) flushing manifolds that inject inert gas into the pouch immediately prior to top horizontal sealing, reducing residual oxygen levels to below 1.0% to dramatically extend food and pharmaceutical shelf life.
6. What warranty, commissioning, and after-sales support are provided?
Ludyway delivers a comprehensive 12 to 24-month warranty on core components, lifetime technical support, overseas engineer on-site commissioning, complete IQ/OQ validation documentation for pharmaceutical compliance, and fast spare part dispatch within 24 hours.
