Automatic Six Column Four Side Sealing Vertical Packaging Machine
SW-C6 · 6 Lanes · 4-Side Seal Sachets · Up to 1,800 sachets/min combined
The SW-C6 is a high-output multi-lane vertical packing machine that simultaneously forms, fills, and seals six 4-side seal sachets from two film rolls — one upper, one lower. Built for condiment, liquid, powder, and granule portion production with fully enclosed seal integrity. Ideal for pharmaceutical, hotel amenity, airline catering, and premium food service packaging where all four edges of the sachet are sealed for maximum barrier protection. Fill volume 5–30 ml per sachet, six columns running in parallel at 200–300 cycles per minute.
Quality
CE Certified
Source
Factory Direct · Guangdong
Customization
OEM · Voltage · Language · Dosing
After-Sales
2-Year Warranty · 24 h Support
SW-C6: Six-Lane Four-Side Seal Sachet Platform
The SW-C6 is a vertical form-fill-seal (VFFS) machine with six parallel lanes producing 4-side seal sachets. Each cycle produces six fully enclosed pouches simultaneously — two film rolls (upper and lower) feed into the machine, pass through longitudinal sealing bars that form the vertical side seams, get dosed with product from a central manifold, then pass through horizontal sealing jaws that close the top and bottom edges. At 200–300 cycles per minute, combined throughput is 1,200–1,800 finished sachets every minute, equivalent to roughly 720,000 sachets in an 8-hour shift.
The 4-side seal format differs from a 3-side seal in that all four edges of each sachet are sealed independently — not just two sides and one end. This gives a fully enclosed pouch with maximum seal integrity, a uniform rectangular appearance for retail display, and the full front and back panels available for printed graphics without interruption from a rear back-seal strip. For oxygen-sensitive products — pharmaceutical powders, instant coffee, premium condiments — the 4-side seal's better barrier performance justifies the slightly higher film usage. For larger pre-formed stand-up pouches with zipper or spout, see the premade bag packing machine family.
The filling system is selected by product type at time of order: piston pump dosing for liquids and sauces, auger screw dosing for dry powder, and volumetric cup dosing for free-flowing granules. Typical applications include honey, plum sauce, salad dressing, ketchup, jam, instant coffee, sugar, seasoning powder, and pharmaceutical portion packs. Fill volume is 5–30 ml per sachet; bag width is 30–70 mm; bag length is 50–150 mm. For a 3-side seal variant of the same six-lane architecture, see the SW-A6 six-column three-side-seal machine. For a 10-lane back seal stick sachet machine, see the SW-B10 ten-column machine. For triangle-shaped tea and seasoning bags instead of rectangular sachets, see the SW-1022 triangle bag packing machine.
Combined Output
Up to 1,800 sachets/min
Fill Volume
5–30 ml
Seal Format
4 sides
| Parameter | SW-C6 |
|---|---|
| Machine Type | Automatic six-column four-side sealing vertical packaging machine |
| Number of Lanes | 6 columns |
| Bag Style | 4-side seal sachet (fully enclosed rectangular pouch) |
| Bag Width | 30–70 mm |
| Bag Length | 50–150 mm |
| Fill Range | 5–30 ml per sachet |
| Cycle Speed | 200–300 cycles/min |
| Combined Throughput | 1,200–1,800 sachets/min (6 × cycle rate) |
| Film Supply | Dual roll — upper film + lower film feed |
| Filling System | Piston pump (liquid) · Auger screw (powder) · Volumetric cup (granule) — configurable |
| Control System | PLC + touch screen HMI + servo film pull |
| Temperature Control | Independent controllers per sealing zone |
| Contact Material | 304 stainless steel |
| Compatible Film | OPP/CPP · PET/PE · NYLON/PE · aluminum foil laminate · PE |
| Power | 6 kW |
| Voltage | 380V 50/60 Hz (three-phase) |
| Air Consumption | 0.8–1.4 m³/min |
| Machine Weight | ~1,000 kg |
| Dimensions (L×W×H) | 1,700 × 1,550 × 3,200 mm |
Recommended Configurations by Product
The SW-C6 is the right pick when your product benefits from the fully enclosed 4-side seal format — oxygen-sensitive contents, premium retail presentation, or full-panel printed graphics. Below are tested configurations with expected output at six lanes running in parallel. Contact us with your product dimensions, viscosity, and target daily volume for a tailored dosing-system recommendation.
Honey, Plum Sauce & Dressing
10–30 ml liquid or semi-viscous sauces
- Filler
- Piston pump (heated optional for honey)
- Cycle
- ~250 cycles/min → 1,500 sachets/min
- 8 h Output
- ≈ 720,000 sachets
- Clients
- Premium food service brands, hotel amenity packers, airline catering, gourmet condiment co-packers
Instant Coffee & Creamer
5–15 g fine powder portions (oxygen-sensitive)
- Filler
- Auger screw (fine powder disc)
- Cycle
- ~280 cycles/min → 1,680 sachets/min
- 8 h Output
- ≈ 806,400 sachets
- Clients
- Premium coffee roasters, non-dairy creamer brands, hotel amenity suppliers, convenience beverage OEMs
Pharmaceutical Powder & Liquid
5–20 ml liquid or 5–15 g powder single-dose packs
- Filler
- Piston pump or auger screw (clean-room compatible)
- Cycle
- ~200 cycles/min → 1,200 sachets/min
- 8 h Output
- ≈ 576,000 sachets
- Add-ons
- Date coder, metal detector, nitrogen flush, tear-notch
Seasoning & Premium Granule
5–20 g free-flowing granules and flakes
- Filler
- Volumetric cup dosing
- Cycle
- ~250 cycles/min → 1,500 sachets/min
- 8 h Output
- ≈ 720,000 sachets
- Clients
- Seasoning brands, salt packers, premium condiment lines, single-serve dry-mix packers
Not the right fit? For 3-side seal sachets at the same six-lane throughput, see the SW-A6 six-column three-side-seal machine. For 10-lane back seal stick sachets, see the SW-B10 ten-column machine. For larger single-lane liquid fills (30–1,000 ml), see the SW-420F collar type liquid machine. For single-lane powder sachets with auger dosing up to 500 g, see the SW-420E/620E auger powder machine. For pre-formed stand-up powder pouches, see the SW-L200/L250/L320 premade bag powder machine. For pre-formed granule pouches, see the SW-D200/D250/D320 premade bag granule machine.
Output Bag Type: 4-Side Seal Sachet
The SW-C6 produces a single bag format: the 4-side seal sachet — all four edges of each sachet are heat-sealed. Two film rolls (upper and lower) feed together into the machine, longitudinal sealing bars close the vertical seams between lanes, and horizontal sealing jaws close the top and bottom of each sachet in every cycle. This format is the premium choice for oxygen-sensitive products, retail display-ready packs, and any application needing full-panel printed graphics without a back-seam interruption.
Typical output — honey, plum sauce, and salad dressing in 4-side seal single-serve sachets
4-Side Seal Sachet (Standard Output)
Compatible film: OPP/CPP · PET/PE · NYLON/PE · aluminum foil laminate · plain PE. The machine runs rollstock film only from two master rolls — no pre-formed sachet supply needed. Upper and lower films can be the same structure or mixed (e.g., clear film on one side for product visibility, foil on the other for barrier). Send your film sample for sealing temperature and dwell time confirmation before production.
Note: This machine produces 4-side seal sachets only. For 3-side seal sachets at the same six-lane throughput, see the SW-A6 six-column three-side-seal machine. For back seal stick sachets, see the SW-B10 ten-column back seal machine. For stand-up or zipper pouches, see the SW-Y200 premade bag liquid machine.
How the Six-Lane 4-Side Seal Cycle Works
Each cycle on the SW-C6 produces six fully enclosed sachets simultaneously. The four-stage cycle — dual film feed, vertical sealing, dosing, horizontal end seal — runs continuously at 200–300 cycles per minute. Operators interact with the machine through one touch screen HMI; all six lanes are controlled together.
01
Dual Film Feed
Two master film rolls feed into the machine — an upper film and a lower film. Each passes over an independent tension-control rack. The two films come together above the dosing stations, aligned face-to-face, ready to be sealed along the vertical seams that separate the six lanes. Servo-driven film pull maintains consistent tension on both films so lane width stays uniform throughout a production run.
02
Vertical Side Sealing
Seven heated vertical seal bars press the upper and lower films together along seven parallel seams, creating six sachet channels with two side seals each. Temperature controllers maintain a stable set point per bar so seal strength is consistent across all six lanes. This is the first two of the four seals — the left and right side seals of each sachet.
03
Dosing & Fill
The selected dosing system — piston pump for liquid, auger screw for powder, volumetric cup for granule — delivers the target fill volume to all six lanes simultaneously through six fill nozzles. Fill accuracy is typically within ±1% for free-flowing products. Fill volume is adjustable from the HMI panel; the same machine can run different fill weights for different SKUs by recipe recall.
04
Horizontal End Seal & Cut-Off
Horizontal heated jaws close across all six lanes, forming the top and bottom end seals simultaneously — completing the third and fourth seals of each sachet. A knife built into the jaw set cuts between each sachet row to separate the finished sachets from the continuous web. Each cycle produces six fully enclosed 4-side seal sachets, dropped onto the outfeed conveyor for downstream collection, date coding, or cartoning.
SW-C6 Running Demo
Watch the SW-C6 feeding two film rolls, forming six parallel channels, filling, and sealing six 4-side seal sachets in every cycle. Send a product and film sample if you want us to run a full packing test on your specific configuration.
Five Design Features That Drive 4-Side Seal Reliability
A six-lane 4-side seal machine has one extra mechanical axis compared to a 3-side seal machine — the dual film feed. The SW-C6's design addresses the five mechanical areas that determine lane-to-lane consistency, seal integrity, and long-term uptime on high-volume portion-pack production.
① Dual Film Rack with Independent Tension
Two film racks — one for the upper film, one for the lower film — with independent tension control on each. Both films need to arrive at the sealing zone with matched tension; otherwise the 4-side seal geometry drifts and lane widths become uneven. Each rack includes a dancer arm and photocell registration.
② Configurable Filling System
Piston pump, auger screw, or volumetric cup — the dosing module is specified at time of order to match your product. All three options meter simultaneously into six lanes from one central reservoir through six fill nozzles positioned between the vertical seal bars. Changeover to a different product within the same dosing family is recipe-driven from the HMI.
③ Seven-Bar Vertical Seal Assembly
Seven parallel heated vertical seal bars create six sachet channels in one stroke. Each bar has its own controller and thermocouple. Side seal bars, end seal jaws, and the film-pull area can be tuned independently — critical when switching between OPP/CPP, PET/PE, and aluminum foil laminate, each of which has a different optimal sealing window.
④ Touch Screen HMI & PLC Control
One HMI controls all six lanes — cycle speed, sealing temperature, fill volume, bag length, and fault codes are on a single screen. Product recipes are saved so operators can switch between SKUs without manually re-entering parameters. Language and unit settings are configured at time of order.
⑤ Horizontal End Seal Jaws with Integrated Knife
End seal jaws extend across all six lanes and close simultaneously, forming the top and bottom seals of each sachet in one stroke. A knife built into the jaw set separates each row of six sachets from the continuous web. Jaw pressure, dwell time, and temperature are adjustable per recipe to match film gauge and structure.
Core Parts on the SW-C6
The images below show the control, sealing, and film-handling parts that matter most when evaluating the SW-C6 for long-term multi-lane operation, film changeover, and maintenance access. Full component list including electrical brands is provided in the quotation sheet on request.
Touch Screen HMI
One central interface controls all six lanes. Stores product recipes for rapid SKU changeover and displays real-time cycle speed, temperature, fill volume, and fault diagnostics for both film feeds and all four sealing zones.
Temperature Controller Bank
Dedicated controller per sealing zone — seven vertical seal bars plus horizontal end-seal jaws — allows precise heat tuning for OPP/CPP, PET/PE, or foil laminate film. Mixed upper and lower film structures are supported.
Dual Film Rack & Tension Control
Two independent film racks — one for upper film, one for lower film — each with dancer arm and photocell registration. Matched tension is essential for even lane widths on a 4-side seal machine, which is the variable that most affects seal geometry.
Is a 4-Side Seal Six-Lane Machine Right for Your Product?
The SW-C6 is a specialized high-throughput platform for 4-side seal portion sachets. The 4-side seal format costs slightly more in film per sachet than a 3-side seal — the extra seal adds film overhead — but delivers better barrier integrity, uniform retail appearance, and full-panel printable graphics. Below is a decision framework to confirm fit.
Choose the SW-C6 When:
- Your product is oxygen-sensitive or light-sensitive — instant coffee, pharmaceutical powder, vitamin powder, premium condiments — and needs the fully enclosed 4-side seal for barrier performance
- Retail display uniformity matters — hotel amenity, airline catering, or premium retail channels prefer the rectangular full-seal look over a back-seal strip
- Printed graphics need the full front and back panels without interruption from a rear seam
- You want to mix upper and lower film structures — for example, clear film on one side for product visibility, foil laminate on the other for barrier
- Daily output is high — 300,000+ sachets per shift at 5–30 ml fill per sachet
- Bag format is stable across SKUs — sachet dimensions do not change frequently
Choose a Different Machine When:
- Film cost is the dominant constraint — the 3-side seal format uses less film per sachet. Use the SW-A6 six-column three-side-seal machine for the same six-lane throughput with a simpler single-film feed
- Fill volume is larger than 30 ml — use the SW-420F collar type liquid machine for 30–1,000 ml liquids, or the SW-420E/620E auger powder machine for powder up to 500 g
- You need back seal stick sachets at 10-lane throughput — use the SW-B10 ten-column back seal machine
- Bag format or SKU changes frequently — a single-lane machine is faster to re-tool for format changes than a multi-lane platform
- Product is a single solid piece (biscuit, candy bar, soap) — use the SW-350A/450A/550A pillow pouch machine
When This Machine Is Not the Right Fit
The SW-C6 is not suitable for highly viscous pastes, sticky or stringy materials, irregular large granules, or products that bridge in a feeder hopper. Multi-lane dosing depends on even product distribution from a central reservoir — if the product does not flow consistently, one or more lanes will under- or over-fill. For sticky or viscous products in larger portions, consider the SW-Y200 premade bag liquid machine (pre-formed stand-up pouches with dedicated pump). For irregular granules needing multi-head weigher accuracy, use the SW-420A multi-head weigher machine. For vacuum packaging or barrier-sensitive products that need air evacuation, use the SW-130ZK/160ZK vacuum packing machine. For spouted-pouch pharmaceutical liquid in larger single-serve volumes, use the SW-CCS6 spout pouch filling and capping machine.
Why Choose ShengWei Machine
Factory Direct from Guangdong
Designed and manufactured in our own 8,000 m² factory in Shantou, Guangdong. No trading companies, no middlemen — you work directly with the engineers who build your SW-C6 and can specify the dosing system, bag width, film structure, and voltage to your requirements.
Built-to-Order Configuration
Filling system (piston pump, auger, cup), voltage (380V/220V, 50/60 Hz), HMI language (English, Spanish, Arabic, Russian, Portuguese, French, and more), bag width, and optional add-ons (date coder, metal detector, nitrogen flush, tear-notch) are configurable per order. OEM branding available for distributors.
Lifetime Remote Support
Free remote video technical support for the life of the machine — not just the warranty period. Spare parts ship from our factory within 3 working days. On-site installation available on request — particularly valuable for 4-side seal machines where initial dual-film alignment and lane balancing matter.
40+ Export Countries
ShengWei machines are deployed in the UAE, Saudi Arabia, Nigeria, Mexico, Colombia, Indonesia, the Philippines, and 30+ additional markets across food service, condiment, coffee, pharmaceutical, and hotel amenity industries.
What Our Clients Say
We chose the SW-C6 over a 3-side seal machine because our pharmaceutical powder sachets need the fully enclosed 4-side seal for moisture protection — our regulatory filing requires it. The dual film feed gives us the option to run aluminum foil on the barrier side and printed PET on the customer-facing side. Seal integrity is consistent across all six lanes; we do periodic burst-pressure tests and failures are rare. The touch screen HMI is easy for operators trained on our other ShengWei line.
Hassan A.
Packaging Operations Manager — Pharmaceutical Contract Packer, Saudi Arabia
The SW-C6 replaced our older 3-side seal machine when a major hotel chain required rectangular 4-side seal sachets for uniform display on their breakfast amenity trays. The footprint is similar and the productivity is about the same — we give up a little film cost to get the retail-ready appearance our customer specified. ShengWei's engineers helped us set up the dual film tension on install; once that was dialed in, the machine has been stable for over six months of daily production.
Priya S.
Production Manager — Hotel Amenity Supplier, India
Frequently Asked Questions
What is the difference between 4-side seal and 3-side seal?
What products can the SW-C6 pack?
Why does the SW-C6 use two film rolls?
How many sachets per minute can the SW-C6 produce?
Which filling system do I need — piston pump, auger, or volumetric cup?
What film materials are compatible — and can I mix upper and lower film?
How accurate is the fill across all six lanes?
Can voltage and HMI language be customized?
What warranty and after-sales support is included?
What is the lead time and payment terms?
Can I send a product sample for a packing test?
Expert Guides
4-Side Seal vs 3-Side Seal vs Back Seal
Bag format tradeoffs for portion packs — seal integrity, film utilization, graphic panel area, and retail display considerations compared head to head.
Compare Formats →Multi-Lane vs Single-Lane Sachet Machines
Throughput, footprint, film waste, maintenance complexity, and SKU flexibility compared — how to choose the right architecture for your production volume.
Read Guide →Piston Pump vs Auger vs Cup Dosing
When each dosing system is the right fit — product viscosity, particle size, accuracy expectations, and changeover flexibility compared.
Learn More →Other Multi-Lane & Seal Format Machines
Different seal types and lane configurations for sachet and pouch production.
Six-Column Three-Side Seal Vertical Machine
Six-column three-side seal vertical machine. Same lane count with three-side seal for cost-effective sachets.
Four-Side Seal Vertical Machine
Single-lane four-side seal vertical machine. Same seal type in larger format for retail-size pouches.
Ten-Column Back Seal Vertical Machine
Ten-column back seal vertical machine. Maximum lane count for highest sachet output.
Ready to Scale with the SW-C6?
Send us your product (liquid, powder, or granule), target fill volume, bag dimensions, upper and lower film structure, and daily output requirement. We will confirm the right dosing system and return a quotation within 24 hours.
info@shengweimachine.com · +86 181 2511 2025
