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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, multi-head weigher, tipping bucket, pendulum, liquid pump). Choose by product type and bag format below.
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
- Volumetric cup (6 lanes)
- Speed
- 40–300 bags/min
- 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
- Volumetric cup (10 lanes)
- Speed
- 50–600 bags/min
- 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
- Dual-film + 6-lane dosing
- Speed
- 40–300 bags/min
- 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. Mesh or standard film both supported.
- Filling
- Volumetric cup
- Speed
- 30–60 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 — switch between volumetric cup, auger, and weigher to handle granules, powder, or mixed products.
- Filling
- Modular (cup / auger / weigher)
- Speed
- 30–60 bags/min
- Best For
- Premium 3-side single sachet
SW-1528 / 1528B
Four Side Seal Single Sachet
Dual-film single-lane machine producing premium flat 4-side-seal sachets. Two configurations — liquid piston filler (SW-1528) and auger powder filler (SW-1528B) — share one frame.
- Filling
- Dual-film piston or auger
- Speed
- 30–60 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
- 30–70 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, pharmaceutical excipient, spice blend. Dust enclosure around the auger for clean production.
- Filling
- Auger screw
- Speed
- 30–70 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
- 30–70 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
- 30–60 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, easy CIP cleaning between SKUs.
- 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, protein, and pharmaceutical powder sticks.
- Filling
- Auger + reciprocating jaw
- Speed
- 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 24 hours.
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 — switch the collar to switch the format. Film material (OPP/CPP, PET/PE, PA/PE laminate, kraft paper) does not affect compatibility.
Back Seal Pouch
Fin Seal Pouch
3 Side Seal
4 Side Seal
Gusset Pouch
Flat Bottom
Stand Up 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, pharmaceutical, 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 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, multi-head weigher for irregular solids, 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 up to 100 product recipes for fast changeover.
Key Components at a Glance
All vertical packing machines share the same VFFS sealing platform, Siemens PLC control, 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
- Siemens S7-200 PLC + Siemens SMART 700 HMI touch screen
- Servo-driven 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 volumetric cup turntable (3-side seal sachets)
- SW-B10 — Ten-lane volumetric cup turntable (back-seal sticks)
- SW-C6 — Six-lane dual-film dosing (4-side seal sachets)
- SW-1022 — Single-lane volumetric cup (pyramid bags)
- SW-1328 — Modular single-lane (cup / auger / weigher)
- 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.
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?
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, 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, gusseted bags, and stand-up doypacks (with the right film and former). 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 24 hours.
info@shengweimachine.com · +86 181 2511 2025
