Multi-lane four-side-seal liquid filling and packing machine
Forms 4-12 lanes of four-side-seal pouches in one pass: film feed, slitting into strips, separate dosing into each lane, four-side sealing, coding and cutting. Stainless steel 304 body for sauces, condiments, honey, juice and liquid household products.
01
What changes with this machine
One machine covers the whole job: from film roll to finished pouches in a carton. A single run produces 4-12 lanes, so output grows 3-8 times over a single-lane packer with the same crew. The film is split from the roll by itself, each strip gets its own dose, the perimeter is welded with four seams, and the date and batch number are printed on the pouch.
The product is liquid or semi-liquid: sauces, condiments, honey, juice, nectar, milk drinks, shampoo, creams, liquid household chemicals. Film is polypropylene or special paper, 0.07-0.1 mm thick.
Finished pouch: 24-120 mm long, 38-120 mm wide. Lanes per pouch run from 4 to 12, film width up to 480, 720 or 960 mm.
Dosing by a piston or peristaltic pump, selected to match product viscosity. For thick products that settle or congeal, an agitator and hopper heating are fitted.
Compressed air at 0.8 MPa and 0.8 m3/min, power supply 220 V. The installation needs access routes and floor space for the machine footprint and the discharge.
It is installed after the product preparation station — hopper with agitator and heating — and before cartoning. Finished pouches leave on the conveyor for wrapping, labelling and palletising. If the line needs a different pack format, the same machine is converted by changing the tooling in 30 minutes.
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Specifications by head count
Values come from the product manual; the output unit follows the pack format.
| Lanes | 4-6 / 4-10 / 4-12 lanes |
|---|---|
| Film width | up to 480 / 720 / 960 mm |
| Film thickness | 0.07-0.1 mm |
| Pouch size | 24-120 mm x 38-120 mm |
| Sealing type | four-side seal |
| Speed | up to 40 cuts/min |
| Dosing accuracy | up to 1% |
| Power and weight | 2.8 / 4.1 / 5.5 kW; 300 / 400 / 500 kg |
03
Construction and process
What the machine gives you
One run produces 4-12 lanes of finished pouches. Film feed, longitudinal sealing, cutting, dosing, cross sealing, coding, cutting and discharge are all performed by one machine, with no transfer between separate machines.
Why a four-side seal
The pouch perimeter is sealed on four sides: two longitudinal side seams and the upper and lower cross seams. In a three-side-seal pouch one seam is replaced by a fold, and the product leaks along that line in storage. A four-side seal holds both liquids and pastes and gives the finished pouch an even shape.
How the filling runs
A knife splits the web along the roll into front and back film. The tension mechanism with press rollers draws the web as the film shrinks under heat. The forming unit welds the side seams and the film becomes a tube. The cutting unit divides the wide strip into lanes, the dosing heads fill each lane with its own volume, the upper and lower cross seams are welded, then the date and batch number are printed, the notch is cut out and the cross knife separates the finished pouch.
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Machine photos
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What to confirm before ordering
Send samples — we test on your product and build the configuration around it.
- Film: material (polypropylene film or special paper), thickness, web width, print repeat, presence of a registration mark and a notch.
- Pouch: finished length and width, lanes per pouch, tolerance for sealing-zone contamination, required cut type — plain or serrated.
- Product: viscosity and feed temperature, settling or crystallisation, whether agitation and hopper heating are needed, required dose volume and weight tolerance.
- Line: required daily output, availability of 0.8 MPa compressed air and power, floor space and access routes, who will operate the line.
Confirmed by testing, not promised
40 cuts per minute is the machine's technical maximum, not a guaranteed line output. Real output depends on viscosity, dose volume, film material and the path to the conveyor, and is confirmed by a test on your own sample. The machine is designed for liquid and semi-liquid products: powders need a different dosing arrangement, and we say so plainly rather than sell something that will not work.
Multi-lane four-side-seal liquid filling and packing machine
We will build the multi-lane line around your pouch and your product
Send a film sample, the pouch dimensions and product parameters — we will propose a configuration with the right lane count, output calculation and price. We test on your samples: dosing, speed and seal quality.
✓ 15+ years of experience · ✓ own factory in China · ✓ free sample testing