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Which Vertical Packing Machine Fits Your Product?
Twelve machines, one operating principle: film wraps around a vertical forming tube, product drops in by gravity, seal jaws form the bag, a cutter separates each unit. The variable is bag format (back-seal, 3-side, 4-side, triangle, pillow, stick), lane count (1, 6, or 10 simultaneous bags), and dosing system (volumetric cup, auger, tipping bucket, pendulum, liquid pump). Choose by product type and bag format below. For powders, start with our powder packaging solutions, which explains how to match the line to the powder before picking one of these twelve. To compare this family against the others, see all ShengWei packing machine models in one index.
All 12 Models at a Glance
Seal format, bag width, filling system and speed for each model, taken from each machine page's specification table. Actual speed depends on product, dose and film.
| Model | Seal and bag format | Bag width | Filling | Speed |
|---|---|---|---|---|
| SW-A6 | 3-side seal sachet, 6 lanes | 30–100 mm | Piston pump (liquid), auger screw (powder) or volumetric cup (granule), configurable | Max 200–300 sachets/min (whole machine) |
| SW-B10 | Back seal stick sachet, 10 lanes | 10–30 mm | Pendular (rocker-arm) dosing for powder and fine granules | Up to 300 bags/min |
| SW-C6 | 4-side seal sachet, 6 lanes | 30–70 mm | Piston pump (liquid), auger screw (powder) or volumetric cup (granule), configurable | Max 200–300 sachets/min (whole machine) |
| SW-1022 | Triangle bag (pyramid pouch), back seal and cross seals | 25–140 mm | See machine page | Max 60–100 bags/min |
| SW-1328 | Three-side seal sachet | 40–140 mm | Rotating measuring cup disc, 4 cups standard / 5 optional | 50–70 bags/min standard; max 60–100 |
| SW-1528 | Four-side seal sachet | 25–140 mm | Inclined auger (powder), rotary volumetric cup or liquid pump | Max 60–100 bags/min |
| SW-2030A | Back seal sachet | 25–140 mm | Rotary turntable volumetric cup feeder | Max 60–100 bags/min |
| SW-2030B | Back seal sachet | 25–140 mm | Motor-driven auger screw | Max 60–100 bags/min |
| SW-2030C | Back seal sachet | 25–140 mm | Chain bucket conveyor with tipping bucket and turntable dual discharge | Max 60–100 bags/min |
| SW-2030D | Back seal | 40–140 mm | Pendulum (oscillating) dosing head | Max 60–100 bags/min |
| SW-2830A | Stick pack, back-seal sachet | 40–150 mm | Self-flow (gravity) liquid feeding from a 304 stainless steel hopper | 60–100 bags/min |
| SW-2830B | Stick pack, back-seal sachet | 20–100 mm | Servo-driven auger screw (standard) | Max 40–100 bags/min |
Multi-Lane Small Sachet Lines
6- to 10-lane configurations that run simultaneous small sachets in parallel — highest throughput for seasoning, salt, sugar, and stick sachets.
SW-A6
Six Column Three Side Seal
Six parallel lanes forming three-side-seal sachets for salt, sugar, coffee creamer, MSG, and fine seasoning — the classic hotel and catering sachet.
- Filling
- Piston pump, auger or cup, per product
- Speed
- Max 200–300 bags/min (whole machine)
- Best For
- High-output 3-side seasoning sachets
SW-B10
Ten Column Back Seal
Ten parallel back-seal stick pouches in a single cycle — the highest-throughput sachet machine in the catalogue. Ideal for sugar, salt, MSG, and fine spice powders.
- Filling
- 5–20 g metering range (dose changed by swapping the matching dosing parts)
- Speed
- Max 300 bags/min (whole machine)
- Best For
- Highest-output back-seal sticks
SW-C6
Six Column Four Side Seal
Dual-film six-lane machine producing premium flat four-side-seal sachets. The extra side seam gives better product protection and a cleaner branded appearance than 3-side sachets.
- Filling
- Piston pump, auger or cup, per product
- Speed
- Max 200–300 bags/min (whole machine)
- Best For
- Premium 4-side seal sachets
Single-Sachet & Specialty Shapes
Single-lane premium sachet machines and the pyramid/triangle specialty line. Lower speed than multi-lane lines, but each pouch is bigger and the sealing pattern is more refined.
SW-1022
Triangle / Pyramid Packing
Forms pyramid-shaped triangle bags — the distinctive silhouette used by premium tea, herbal infusion, and specialty candy brands.
- Filling
- Volumetric cup
- Speed
- Max 60–100 bags/min
- Best For
- Pyramid tea bags, specialty pouches
SW-1328
Three Side Seal Single Sachet
Single-lane three-side-seal machine for larger individual sachets. Modular dosing — volumetric cup, auger, or liquid pump, configured for granules, powder, or liquid.
- Filling
- Modular (cup / auger / liquid pump)
- Speed
- 50–70 bags/min standard; max 60–100
- Best For
- Premium 3-side single sachet
SW-1528
Four Side Seal Single Sachet
Dual-film single-lane machine producing premium flat 4-side-seal sachets. Two configurations — liquid piston filler and auger powder filler — share one frame.
- Filling
- Dual-film piston or auger
- Speed
- Max 60–100 bags/min
- Best For
- Premium 4-side single sachet
SW-2030 Pillow-Pouch Series
Four compact VFFS machines on the shared SW-2030 frame, differentiated by dosing system — pick the filler that matches your product's flow behaviour.
SW-2030A
Granule Back Seal
Cup-turntable VFFS for free-flowing granules — seeds, nuts, candy, puffed snacks, rice, small pet food pellets. The entry-level 2030-series model.
- Filling
- Cup turntable
- Speed
- Max 60–100 bags/min
- Best For
- Free-flowing granules
SW-2030B
Auger Powder Back Seal
Auger-screw VFFS for fine powder — coffee, flour, milk powder, protein powder, spice blend. Dust enclosure around the auger for clean production.
- Filling
- Auger screw
- Speed
- Max 60–100 bags/min
- Best For
- Fine powder with dust control
SW-2030C
Tipping Bucket Back Seal
Dual tipping-bucket chain conveyor for fragile or large-piece products — puffed chips, shrimp crackers, mushroom slices, large seeds, candy clusters. Gentle handling preserves product integrity.
- Filling
- Dual tipping buckets
- Speed
- Max 60–100 bags/min
- Best For
- Bulky / fragile products
SW-2030D
Pendular Small Granule
Oscillating pendulum dosing head for small precision granules — sugar, fine salt, chia seed, quinoa, sesame, millet. Higher accuracy than cup-turntable at small fill weights.
- Filling
- Pendulum dosing head
- Speed
- Max 60–100 bags/min
- Best For
- High-precision small granule
Long Stick Pack Lines
SW-2830 series for long thin single-serve stick-pack sachets — the narrow pouch format used by instant coffee, probiotic supplements, liquid jelly bars, and stick ice pops.
SW-2830A
Jelly Bar Stick (Liquid)
Self-flow 304 stainless hopper feeds liquid by gravity into long stick pouches — jelly bars, fruit beverage sticks, stick yogurt drinks, flavoured water. No pump seals.
- Filling
- Self-flow stainless hopper
- Speed
- 60–100 bags/min
- Best For
- Liquid stick-pack sachets
SW-2830B
Reciprocating Powder Stick
Auger dosing + pneumatic reciprocating sealing jaw — the hermetic-seal stick-pack machine for instant coffee, 3-in-1 creamer, sugar, probiotic and protein powder sticks.
- Filling
- Auger + reciprocating jaw
- Speed
- Max 40–100 bags/min
- Best For
- Powder stick-pack sachets
Not sure which configuration fits your product? Send us a product description or sample — we will recommend the right machine and bag format within one business day. If you would rather start from the product than from the machine, compare granule packing machines by dosing method for free-flowing granules, or liquid packing machines by pump type for liquids, sauces and pastes.
Select By Pouch Type
All twelve vertical machines form bags from rollstock film during the packing cycle. Bag format is determined by the forming collar geometry. Film material (OPP/CPP, PET/PE, PA/PE laminate, kraft paper) is compatible within the structures and samples we have validated; send a sample for a sealing test to confirm yours.
Back Seal Pouch
Fin Seal Pouch
3 Side Seal
4 Side Seal
Gusset Pouch
Shape Bag
Need spout pouches, zipper bags, or K-seal stand-up bags? Those formats are made on premade-bag machines — see our Premade Bag Packing Machine category.
Select By Industry
Configurations for food, beverage, snack, condiment, chemical, hardware, and pet care industries.
Tell us your industry →Select By Application
Granule, powder, liquid, paste, irregular solid, sticky candy, frozen ice pop, or compound multi-product packaging.
Send us a product sample →How a Vertical Form Fill Seal (VFFS) Machine Works
All twelve machines share the same four-step VFFS cycle. The variable is the bag format (the forming collar shape), the dosing system (how product is metered into the tube), and the lane count (one bag at a time or 6–10 bags simultaneously).
01
Film Unwind & Forming
Rollstock film (OPP/CPP, PET/PE, PA/PE, aluminum laminate) unwinds from a shaft at the rear of the machine. It passes over a forming collar that folds the flat web into a continuous vertical tube around the dosing pipe. A photoelectric eye tracks print-registration marks so branded graphics land in the correct position on every bag. Bag format — back-seal, 3-side, 4-side, triangle, pillow, or stick — is determined by the forming collar geometry. Dual-film configurations (SW-C6, SW-1528, and similar) use two webs fed from separate shafts to form a flat 4-side-seal sachet.
02
Product Dosing & Drop
Product enters the forming tube by gravity from the dosing system — volumetric cup for granules and candy, auger screw for powder, tipping bucket for fragile large pieces, pendulum head for precision small granules, or a self-flow hopper or piston pump for liquid. The PLC synchronizes dose release with film pull so product arrives at the bag position exactly when the end-seal jaws open.
03
Vertical (Back) Seal
Heated vertical seal bars press the overlapping film edges together along the side of the tube, forming the continuous back seam that gives back-seal sachets their name. On 3-side and 4-side sachet machines, the equivalent vertical seal forms one long edge of the flat sachet. Temperature and pressure are independently adjustable from the HMI so the same machine handles thin OPP/CPP and thicker PA/PE laminates without retooling.
04
End Seal, Cut & Discharge
Horizontal end-seal jaws close across the tube below the product charge, sealing the top of one bag and the bottom of the next in one stroke. A blade within the jaws separates the finished bag. Reciprocating-jaw models (SW-2830B) hold dwell time longer for hermetic aluminum-laminate seals. An optional date coder prints batch number and expiry. Finished bags drop onto an output conveyor or directly into a collection chute. The HMI stores product recipes for fast changeover.
Key Components at a Glance
All vertical packing machines share the same VFFS sealing platform, PLC control (Siemens / Mitsubishi / Delta available), and branded pneumatic components. The dosing system upstream is what varies by model. Each product page has detailed component breakdowns and branded part close-ups.
Shared Across All Models
- PLC (Siemens / Mitsubishi / Delta available) + Siemens SMART 700 HMI touch screen
- Film pull with photoelectric mark registration
- Vertical and horizontal seal bars with independent PID temperature
- AirTAC / SMC pneumatic cylinders and solenoid valves
- Omron rotary encoder for bag length tracking
- Schneider overcurrent breakers and frequency converter
- SUS304 stainless steel product contact surfaces
- Recipe memory for fast changeover between SKUs
Model-Specific Dosing Systems
- SW-A6 — Six-lane; piston pump, auger or volumetric cup, per product (3-side seal sachets)
- SW-B10 — Ten-lane back-seal sticks; 5–20 g metering range (dose changed by swapping the matching dosing parts)
- SW-C6 — Six-lane dual-film; piston pump, auger or volumetric cup, per product (4-side seal sachets)
- SW-1022 — Single-lane volumetric cup (pyramid bags)
- SW-1328 — Modular single-lane (cup / auger / liquid pump)
- SW-1528 — Dual-film single-lane (piston for liquid, auger for powder)
- SW-2030A — Cup turntable (free-flowing granules)
- SW-2030B — Auger screw with dust enclosure (fine powder)
- SW-2030C — Dual tipping buckets (bulky / fragile items)
- SW-2030D — Oscillating pendulum head (small precision granules)
- SW-2830A — 304 stainless self-flow hopper (liquid stick pack)
- SW-2830B — Auger + reciprocating sealing jaw (powder stick pack)
Click each model for full specifications, component photos, and factory video.
Case studies
Hungary Case Study: SW-420 and SW-1528 for Milk Powder and Tomato Powder
Repeat order from a Hungarian food company: an SW-420 back-seal machine with auger filler for milk powder and an SW-1528 four-side-seal machine for tomato powder.
Read the case study →Mexico Case Study: SW-2030 Back-Seal Machine for 30 g Protein Powder Sachets
A Mexican contract packer chose one SW-2030 back-seal auger machine for 30 g protein powder sachets: machine choice, rated speed, PI terms and current status.
Read the case study →Frequently Asked Questions
Vertical packing machine vs. pillow pouch or premade bag machine — what is the difference?
Which vertical packing machine should I choose for my product?
What is the difference between back-seal, 3-side-seal, and 4-side-seal bags?
What products can a vertical packing machine handle?
What is the speed range across models?
What is the difference between a multi-lane and a single-lane vertical sachet machine?
How does a sachet or stick pack machine work?
Which model is best for coffee stick sachets?
Can one vertical packing machine handle both liquid and powder?
What film materials are compatible?
What are the lead time, payment, and shipping terms?
Do you provide installation, training, manuals, and spare parts?
Pouch Type Compatibility
Single-column vertical machines (VFFS) run a wide range of bag formats from rollstock film: back-seal pillow bags, 3-side and 4-side seal sachets, and gusseted bags. See each pouch type page for compatible models.
Ready to Choose Your Vertical Packing Machine?
Tell us your product type, bag format, fill weight, speed requirement, and daily output target. We will match you to the right configuration and return a quotation within one business day.
info@shengweimachine.com · +86 181 2511 2025
