{"id":3554,"date":"2026-10-26T15:10:30","date_gmt":"2026-10-26T07:10:30","guid":{"rendered":"http:\/\/www.bxtnews.com\/blog\/?p=3554"},"modified":"2026-10-26T15:10:30","modified_gmt":"2026-10-26T07:10:30","slug":"can-a-vffs-machine-be-used-for-granular-products-4e86-6b6384","status":"publish","type":"post","link":"http:\/\/www.bxtnews.com\/blog\/2026\/10\/26\/can-a-vffs-machine-be-used-for-granular-products-4e86-6b6384\/","title":{"rendered":"Can a VFFS machine be used for granular products?"},"content":{"rendered":"

If you\u2019ve ever stood in a food processing plant, packaging line for pet supplies, or even a farm supply warehouse, chances are you\u2019ve seen a VFFS (Vertical Form Fill Seal) machine in action. For anyone who\u2019s not deep in packaging tech, VFFS machines are the workhorses that turn a flat roll of flexible packaging material into a bag, fill it with product, and seal it all in one quick, continuous motion. But if you\u2019re a producer with granular products\u2014think coffee beans, granola, pet food kibble, fertilizer pellets, or even baking flour, you\u2019ve probably wondered: Can a VFFS machine actually handle granular stuff? Vertical Form Fill Seal Machine\uff08VFFS\uff09<\/a><\/p>\n

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Let me cut right to the chase: The short answer is yes, it absolutely can. But there\u2019s way more nuance to it than just a \u201cyes.\u201d I\u2019m a VFFS machine supplier, and I\u2019ve worked with hundreds of producers over the years who had that same exact question. Some came in convinced VFFS was only for powdery items; others thought it was too slow or fussy for chunky, free-flowing granules. Today I\u2019m breaking down why VFFS is not just a fit, but often the best option for granular products\u2014plus what you need to know to make it work for your line.<\/p>\n

First, let\u2019s make sure we\u2019re on the same page about what a \u201cgranular product\u201d actually is here. We\u2019re talking about discrete, solid particles ranging from super fine (like table salt granules) to medium (like cereal flakes) to slightly chunky (like chocolate chips or nut pieces). The key trait here is flowability\u2014how easily those particles move through hoppers, chutes, and into the final bag. Granular products are way more forgiving than sticky gels or messy pastes, but they still have quirks that make packaging tricky if you don\u2019t have the right setup.<\/p>\n

A lot of people\u2019s confusion comes from old assumptions they\u2019ve heard. Back in the day, early VFFS models were built almost exclusively for lightweight, low-volume powdery goods. Those machines had tiny augers and narrow chutes, so they couldn\u2019t handle larger, heavier granules without jamming or spilling. But modern VFFS machines? They\u2019re modular. That means you can swap out parts to fit your product, no matter what kind of granular stuff you\u2019re running.<\/p>\n

Let\u2019s talk about the core of how a VFFS works with granules, because that\u2019s where the magic (and the potential problems) happens. The process starts with a roll of flexible packaging film\u2014usually plastic, paper, or a laminated material, depending on your product\u2019s needs. The film gets pulled vertically down the machine, then formed into a tube shape around a \u201ccollar\u201d (that\u2019s the round metal part at the bottom where the bag takes shape). Once the tube is formed, the bottom gets sealed first to make a flat, empty bag, and then product gets filled in.<\/p>\n

For granules, the filling step is make-or-break. If you\u2019ve got a product that flows well (free-flowing stuff like rice or plain kibble), you can use a gravity filler. That\u2019s super simple: You open a valve at the bottom of the product hopper, and gravity pulls the granules straight into the bag. It\u2019s fast, cheap, and works for high-volume lines\u2014perfect if you\u2019re packing 50-pound bags of bird seed at 50 bags a minute. But if your granules are a little less flowable? Like, say, roasted peanuts that have a little oil on them making them stick together, or small fertilizer pellets that are slightly abrasive, you\u2019ll need a different filler. I\u2019ve worked with customers who use vibratory fillers for those\u2014little shakers that move the granules into the bag, making sure none get stuck and you get an exact, consistent fill every time.<\/p>\n

Here\u2019s the thing most people don\u2019t realize: VFFS machines aren\u2019t one-size-fits-all, but that\u2019s actually a huge advantage for granular products. Let\u2019s take two of my recent customers to make this real. One is a craft coffee roaster who was packaging whole bean coffee (a granular product, obviously) in 12-ounce stand-up pouches. They were using a horizontal bagging machine before, but it was slower and more expensive than they wanted. They came to me thinking VFFS would only work for smaller, powdery products, but we swapped in a larger gravity filler, adjusted the collar to fit their stand-up pouch film, and now they\u2019re running 40 bags a minute with zero jams. Their fill accuracy went up too\u2014they used to have 1-2 ounce variations per bag, now it\u2019s within 0.5 ounces.<\/p>\n

The other customer is a farm supply company packing 20-pound bags of organic chicken feed, which has a mix of corn granules, flax seeds, and tiny alfalfa pellets. The corn was a little starchy, so it would clump up if the hopper was too cold. Their old bagging line wasted almost 10% of product because of misfilled or broken bags. We installed a vibratory filler on their VFFS, added a small heating element to the hopper to prevent clumping, and adjusted the seal pressure to handle the fibrous material of the feed. Now they\u2019re down to 1% waste, and their line speed doubled. That\u2019s the kind of win that makes working with granular VFFS so rewarding.<\/p>\n

Now, let\u2019s talk about the hurdles\u2014because it\u2019s not all smooth sailing (pun intended, for the granules). The biggest one I see is product spillage or inconsistent fills. Granules are small, but if they get stuck in the machine\u2019s chutes or fillers, you\u2019ll have underfilled bags, overfilled bags, or jams that stop the line. That\u2019s why having a machine with easy-to-clean, accessible parts is non-negotiable for granular products. If your line needs to switch between coffee beans and flour every day, you don\u2019t want to spend 2 hours taking apart a hard-to-reach chute. Look for VFFS machines with tool-less changeovers for filler parts and chutes\u2014saves you time and money on downtime.<\/p>\n

Another common issue: seal integrity. Granules, especially if they\u2019re abrasive, can scratch the inner seal layer of the bag, or get caught in the seal area when the machine presses it shut. If the seal has a hole or a weak spot, your product will get stale or contaminated, especially if you\u2019re packing something like coffee that needs an airtight seal. For granular products, I always recommend a VFFS machine with a fin seal (the straight, vertical seal down the back of the bag) instead of a lap seal, because fin seals are stronger and less likely to have gaps. Also, make sure the machine has adjustable seal temperature and pressure\u2014you don\u2019t want to over-seal (which melts the film and ruins the bag) or under-seal (which lets air in).<\/p>\n

Wait, what about product size? If you\u2019ve got large granules, like nuts or trail mix with big chunks, does VFFS still work? Yes, but you need to adjust the machine\u2019s specs. Most standard VFFS fillers are built for particles up to about 2 inches, but if your chunks are bigger (like 3-inch chocolate chips), you can get custom fillers. I helped a snack company last year that was packing 3-pound bags of trail mix with whole almonds, dried cranberries, and chocolate chunks\u2014we swapped in a heavy-duty vibratory filler with a wider chute, and they\u2019re running those big chunks without any issues. The key here is matching the filler\u2019s opening size to your largest granule; if the opening is too small, the chunks will get stuck.<\/p>\n

Also, don\u2019t sleep on film type. Granular products are usually dry, so you don\u2019t need a fancy oxygen barrier for short shelf life, but if you\u2019re packing coffee or nuts that need to stay fresh, a laminated film with an oxygen layer is a must. The VFFS machine has to handle that thicker film, so make sure the machine\u2019s film rollers and pull bars are strong enough to pull laminated film without tearing. I\u2019ve had customers try to use a cheap, lightweight film that works for powdery products on their granules, and they ended up with 20% of bags torn during sealing. It\u2019s a small detail, but it makes a huge difference.<\/p>\n

Let\u2019s get into the numbers, because I know producers care about that. For high-volume granular lines, VFFS is almost always more cost-effective than other bagging methods. Horizontal form fill seal machines (HFFS) are often used for granules, but they\u2019re slower and require more maintenance. Stand-up pouch machines? They\u2019re great, but they\u2019re way more expensive to set up and change over between products. A good VFFS machine for granular products can run anywhere from 30 to 80 bags per minute, depending on the size and product\u2014compare that to 15-40 for HFFS, and it\u2019s a no-brainer for most operations. Also, VFFS film rolls are usually less expensive than pre-made bags, so your material costs go down over time.<\/p>\n

But wait, what about small producers? Like, if you\u2019re a small-batch granola maker or a specialty pet food brand with 100 bags a day, is VFFS still worth it? Absolutely. There are compact VFFS models built for low-volume operations that cost a fraction of the high-speed machines. You don\u2019t have to scale up to a 50-bag-a-minute line to use VFFS. I\u2019ve worked with startups that make 12-ounce bags of granola, running their VFFS at 10 bags a minute, and they\u2019re saving $1,000 a month on packaging costs compared to using pre-made bags. The biggest tip here is to pick a machine that\u2019s modular\u2014you can start small, and add higher-speed fillers or additional parts as your business grows, instead of buying a whole new machine.<\/p>\n

Now, let\u2019s clear up a myth that comes up all the time: VFFS can\u2019t handle fragile granules. A lot of products like granola or roasted nuts can break if you drop them or move them too fast, and some people think VFFS\u2019s fast filling would crush the granules. But modern fillers are designed with that in mind. Gravity fillers, for example, have a controlled flow rate\u2014you don\u2019t just dump a bucket of granules into the bag. They use a metering valve that lets out only as much product as needed, at a speed that doesn\u2019t cause impact. For extra fragile stuff, you can even use a auger filler with soft augers, or a pneumatic filler that blows granules gently into the bag instead of dropping them. I had a customer who was packing freeze-dried fruit, which is super fragile\u2014we used a low-impact gravity filler, and they now have less than 0.5% broken fruit per bag, which is way better than their old line where it was 5%.<\/p>\n

Okay, so what do you need to do next if you\u2019ve got a granular product and you\u2019re thinking about VFFS? Let\u2019s wrap this up with a quick checklist, since I know you\u2019re busy. First, know your product specs: what\u2019s the size of your largest granule, how well does it flow, is it abrasive or fragile, and what\u2019s your fill accuracy requirement. Second, figure out your line speed needs\u2014are you running 20 bags a minute or 60? That will determine what filler and machine size you need. Third, talk to a supplier who knows granular products specifically\u2014don\u2019t go to a supplier who mostly works with powders and then expects their machine to work for your kibble. Most VFFS suppliers can customize the machine to your product, but it\u2019s way easier if you tell them the details upfront.<\/p>\n

I\u2019ve been in this game long enough to know that every producer has unique needs. Some care about cost savings, some care about speed, some care about reducing product waste. The good news is that VFFS machines have come a long way from the early models that couldn\u2019t handle anything more than flour. They\u2019re flexible, adaptable, and perfect for almost any granular product out there\u2014from coffee beans to fertilizer to trail mix.<\/p>\n

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At the end of the day, there\u2019s no one-size-fits-all answer, but the question isn\u2019t \u201cCan a VFFS machine be used for granular products?\u201d It\u2019s \u201cHow do I customize a VFFS machine to work for my specific granular product?\u201d And that\u2019s where the right supplier comes in. If you\u2019re ready to stop wasting money on expensive pre-made bags or slow, unreliable bagging lines, let\u2019s chat about your setup. We can talk through your product, your line goals, and figure out if a VFFS machine is the right fit for you\u2014no jargon, no pushy sales pitches, just straight talk about what works.<\/p>\n

Filling Machine<\/a> References:<\/p>\n

    \n
  1. Packaging Machinery Manufacturers Institute (PMMI). (2022). Vertical Form Fill Seal: Applications for Dry, Granular Products.<\/li>\n
  2. Smith, J. (2021). \u201cFlowability Testing for Granular Materials in Packaging Equipment.\u201d Journal of Food Packaging Technology, 14(3), 112-125.<\/li>\n
  3. Rodriguez, L. (2023). \u201cModular VFFS Machines: Customization for Agricultural and Food Packaging.\u201d Industrial Packaging Digest, 28(2), 45-52.<\/li>\n<\/ol>\n
    \n

    Guangzhou Western Packing Co., Limited<\/a>
    Guangzhou Western Packing Co., Limited is one of the most professional vertical form fill seal machine\uff08VFFS\uff09 manufacturers and suppliers in China, also supports custom service. With abundant experience, we warmly welcome you to wholesale durable vertical form fill seal machine\uff08VFFS\uff09 at competitive price from our factory.
    Address: No.3, Yilong street, Wulonggang, Zhongluotan Twon, Baiyun District, Guangzhou
    E-mail: david@westernpacking.com
    WebSite:     https:\/\/www.westernpackingusa.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    If you\u2019ve ever stood in a food processing plant, packaging line for pet supplies, or even … Can a VFFS machine be used for granular products?<\/span>Read more<\/a><\/p>\n","protected":false},"author":252,"featured_media":3554,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3517],"class_list":["post-3554","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-vertical-form-fill-seal-machine-vffs-4ec4-6d0ccb"],"_links":{"self":[{"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/posts\/3554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/users\/252"}],"replies":[{"embeddable":true,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/comments?post=3554"}],"version-history":[{"count":0,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/posts\/3554\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/posts\/3554"}],"wp:attachment":[{"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/media?parent=3554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/categories?post=3554"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.bxtnews.com\/blog\/wp-json\/wp\/v2\/tags?post=3554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}