product
SUK vertical form fill seal (VFFS) packaging machines form bags from roll film, fill the selected product and seal the finished packs. For food factories using back-seal pillow bags, selection starts with the food product, fill amount, bag width and length, film structure and required bags per minute.
Granules, powders, liquids and pastes require different dosing configurations. A multihead weighing system, auger filler or liquid filler should be assessed against the actual food product rather than assumed to suit every application.
Compare the model-specific bag dimensions and film widths in the specification table below. Volumetric measuring ranges in ml are not the same as product fill weights in grams. The final filling range and operating speed must be confirmed with the actual product and packaging specification.

Use the product and finished bag to narrow the configuration: food powder dosing, snack weighing and bagging, rice packaging, or ice cube bagging.
Compare the VFFS selection guide before fixing the bag-maker, film and dosing arrangement. For small packs that must be boxed, review the powder VFFS-to-carton route separately. Provide your product sample, bag drawing, film and accepted bags per minute for a matched factory-line proposal.
The table retains earlier website configuration references. Catalog records can describe different SKL configurations and dimension definitions. Confirm the current model, finished bag dimensions, film width, dosing range, utilities and installation drawing for the quoted setup; a volume range is not a verified gram range.
| Model | SKL-420 | SKL-520 | SKL-720 | SKL-820 |
| Bag length | 80-320mm(L) | 80-420mm(L) | 100-500mm(L) | 100-550mm(L) |
| Bag width | 50-200mm(w) | 50-250mm(w) | 100-350mm(w) | 180-400mm(W) |
| BMax width of roll film | 420mm | 520mm | 720mm | 820mm |
| Packing material | OPP / CPP/OPP/PEPET / PE | OPP / CPP/OPP/PEPET / PE | OPP / CPP/OPP/PEPET / PE | OPP / CPP/OPP/PEPET / PE |
| Packing speed | 5-60bags/min | 5-50bags/min | 5-40bags/min | 5-30bags/min |
| Measuring range | 150-1500ml | 150-2000ml | 500-3500ml | 6000ml(Max |
| Power | 220V 50/60hz 2.2kw | 220V 50/60hz2.5kw | 220V50/60hz3kw | 220V 50/60hz 5kw |
| Machine weight | 500kg | 550kg | 600kg | 900kg |
| Machine size(mm) | (L)1388 x(W)1116x(H)1536mm | (L)1440x(W)1216x(H)1796mm | (L)1500x(W)1116x(H)1536mm | (L)1780x(W)1350x(H)1950mm |
Explore related equipment: the premade pouch packing machine for stand-up and zipper pouches, the stick packing machine for powders, or ask SUK about a packaging line solution.
Which food packaging format do you need? For ready-made zipper or stand-up pouches, compare the premade pouch packing machine. For small single-serve stick packs and sachets produced in parallel, review the multi-lane powder sachet machine. These are alternative configurations selected around the pack, not interchangeable names for the same machine.
Request a VFFS configuration: send your food product or sample, fill weight or volume, finished-bag width and length, film sample, target bags per minute, cleaning needs and installation country. Bag width is not roll-film width; please identify each separately. Maximum speed and maximum fill quantity are not simultaneous performance guarantees.