{"id":10311,"date":"2025-09-29T09:11:43","date_gmt":"2025-09-29T09:11:43","guid":{"rendered":"https:\/\/fill-package.com\/?p=10311"},"modified":"2026-04-03T07:50:27","modified_gmt":"2026-04-03T07:50:27","slug":"balanca-multihead-padrao-vs-balanca-alimentadora-de-parafuso-como-escolher-a-melhor-solucao-para-seus-produtos-pegajosos","status":"publish","type":"post","link":"https:\/\/fill-package.com\/pt\/standard-mulithead-weigher-vs-screw-feeder-weigher-how-to-choose-the-best-solution-for-meat-poultry-packaging\/","title":{"rendered":"Standard Multihead Weigher vs. Screw Feeder: Which is Best for Sticky Meat & Poultry Packaging?"},"content":{"rendered":"

The Question Every Meat Processor Eventually Asks<\/b><\/strong><\/h2>\n

You invested in a multihead weigher. It runs flawlessly on your nut line. Your chip bags are perfect. Then the day comes when you try to run marinated chicken thighs<\/b><\/strong>\u00a0or boneless pork belly cubes<\/b><\/strong>\u00a0through the same machine \u2014 and the nightmare begins.<\/p>\n\n\n\n
\u26a0\ufe0f \u00a0The Sticky Product Nightmare<\/b><\/strong><\/p>\n

Why does your multihead weigher hit 15% error rates on marinated meat when it scores < 1% on dry nuts? The answer isn’t a machine defect. It’s physics \u2014 and understanding it is the first step toward fixing your line.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Here’s what’s actually happening on your production floor:<\/p>\n

    \n
  • Your vibrating trays shake. Dry nuts slide forward. Marinated chicken sits there and doesn’t move.<\/b><\/strong><\/span><\/li>\n
  • Fat and sauce create surface tension \u2014 the product literally bonds to the stainless steel tray.<\/li>\n
  • Hoppers fill unevenly. The weigher’s combination logic is working with incomplete, stuck product \u2014 so your weight readings drift.<\/li>\n
  • A worker stops the line to manually push the product through. Your OEE (Overall Equipment Effectiveness) drops.<\/li>\n
  • You either overfill every bag (waste money) or under-fill (violate label law).<\/li>\n<\/ul>\n

     <\/p>\n

    This isn’t a unique problem. It’s a structural flaw in vibration-based feeding<\/b><\/strong>\u00a0when applied to high-fat, high-moisture, or marinated products<\/b><\/strong>. And there’s only one engineering solution that actually works: Forced Feeding via Screw Drive.<\/b><\/strong><\/p>\n

    \"multihead<\/p>\n

     <\/p>\n

    Why Vibration Fails on Sticky Products: The Physics<\/b><\/strong><\/h2>\n

    Standard multihead weighers were engineered for one type of material: free-flowing particulates. Nuts, chips, grains, frozen peas \u2014 anything that slides readily when shaken.<\/p>\n

     <\/p>\n

    Two Forces Working Against You<\/b><\/strong><\/h3>\n

    Surface Tension & Fat Adhesion:<\/b><\/strong>\u00a0Marinated meat, fresh poultry, and oily seafood have high lipid content on the surface. This creates a thin adhesion layer between the product and the stainless steel tray surface. Vibration isn’t strong enough to overcome this bond at low amplitudes \u2014 and increasing amplitude just bounces the product chaotically, reducing accuracy.<\/p>\n

     <\/p>\n

    Material Bridging:<\/b><\/strong>\u00a0Irregular-shaped pieces (chicken feet, steak cubes, shrimp) interlock and create bridges across the tray. One piece sticks, and the mass behind it stops. On a dry product, vibration breaks bridges instantly. On a sticky product, the bridge holds \u2014 and the hopper starves.<\/p>\n

     <\/p>\n\n\n\n
    \ud83d\udca1 \u00a0Industry Reality Check<\/b><\/strong><\/p>\n

    A standard multihead weigher running marinated meat will typically see 10\u201315% of its weighing cycles rejected or reworked due to adhesion-related inaccuracy. At 60 bags\/min on a 500g pack, that’s 6\u20139 bags per minute going to rework \u2014 or roughly 450 kg\/hour of product at risk.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    <\/h2>\n

    The Screw Feeder: Forced Feeding Is the Only Scientific Solution<\/b><\/strong><\/h2>\n

    The screw feeder multihead weigher doesn’t try to vibrate sticky product into motion. It forces it.<\/b><\/strong>\u00a0A rotating helical screw sits beneath the product and physically drives it forward into the weighing hoppers \u2014 regardless of fat content, marinade viscosity, or piece size.<\/p>\n

     <\/p>\n

    Picture a 10\u00b0C cold-chain packaging facility processing boneless chicken feet or marinated steak cubes at 7am. The product is cold, slightly congealed, high in collagen and sauce. On a standard weigher: product sits, bridges, requires a worker to manually push it through \u2014 contaminating the food and violating your HACCP protocol. On a screw feeder: the auger turns, product loads like clockwork, the weigher runs at full speed, and the only person needed is the one doing QC checks.<\/p>\n

     <\/p>\n

     <\/p>\n

    Head-to-Head Comparison: Standard vs. Screw Feeder Multihead Weigher<\/b><\/strong><\/h2>\n

     <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Feature<\/b><\/strong><\/td>\nStandard Multihead Weigher<\/b><\/strong><\/td>\nScrew Feeder Multihead Weigher<\/b><\/strong><\/td>\n<\/tr>\n
    Feeding Method<\/b><\/strong><\/td>\nVibration (tray shaking)<\/td>\nRotating screw rods (forced push)<\/td>\n<\/tr>\n
    Best For<\/b><\/strong><\/td>\nDry, free-flowing: nuts, chips, cereals<\/td>\nSticky, wet, oily: marinated meat, poultry, seafood<\/td>\n<\/tr>\n
    Blockage Risk<\/b><\/strong><\/td>\nHIGH \u2014 product bridges & adheres<\/td>\nVery Low \u2014 continuous forced movement<\/td>\n<\/tr>\n
    Weighing Accuracy<\/b><\/strong><\/td>\nDegrades 10\u201315% with sticky product<\/td>\nConsistent \u00b11g across all runs<\/td>\n<\/tr>\n
    Error Rate (Sticky)<\/b><\/strong><\/td>\nUp to 15% reject\/rework rate<\/td>\n< 2% under normal conditions<\/td>\n<\/tr>\n
    Cleaning<\/b><\/strong><\/td>\nLabor-intensive; sticky residue persists<\/td>\nIP67 washdown-ready; quick disassembly<\/td>\n<\/tr>\n
    OEE Impact<\/b><\/strong><\/td>\nFrequent manual interventions needed<\/td>\nHigh OEE; minimal unplanned stops<\/td>\n<\/tr>\n
    Scraper Hopper Option<\/b><\/strong><\/td>\nNot available<\/td>\nYes \u2014 for extremely sticky material<\/td>\n<\/tr>\n
    Memory Hoppers<\/b><\/strong><\/td>\nStandard<\/td>\nEnhanced logic for high-speed accuracy<\/td>\n<\/tr>\n
    Ideal Environment<\/b><\/strong><\/td>\nDry ambient conditions<\/td>\nCold-chain (0\u201310\u00b0C), wet processing areas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n

    Internal Link: <\/b><\/strong>If you are packaging poultry parts specifically, see our detailed Meat & Poultry Packaging Solutions page<\/u><\/a>\u00a0for application-specific configuration guidance.<\/p>\n

     <\/p>\n