{"id":12517,"date":"2026-02-09T15:49:48","date_gmt":"2026-02-09T15:49:48","guid":{"rendered":"https:\/\/fill-package.com\/?p=12517"},"modified":"2026-04-23T11:30:21","modified_gmt":"2026-04-23T11:30:21","slug":"blog-meat-portioning-spiral-freezing-automatic-weighing","status":"publish","type":"post","link":"https:\/\/fill-package.com\/ru\/blog\/meat-portioning-spiral-freezing-automatic-weighing\/","title":{"rendered":"Space-Saving Meat Portioning: Integrating Spiral Freezing with Automatic Weighing"},"content":{"rendered":"

Why the gap between your spiral freezer discharge and the portioning station is costing you more than you think \u2014 and how a small-footprint screw feeder multihead weigher closes it permanently.<\/span><\/p>\n

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\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435<\/div>\n

The Bottleneck Nobody Measures<\/h2>\n

In a frozen meat or poultry processing facility, the spiral freezer is one of the largest capital investments on the floor \u2014 and, in many plants, also the point at which the production line stalls. Product exits the spiral tower frozen, consistent, and moving at the freezer’s discharge rate. What happens in the next ten metres determines whether that throughput is maintained or squandered.<\/p>\n

In facilities without integrated portioning automation, the answer is usually: a manual breakdown station, three to five operators in 4\u00b0C conditions, breaking apart frozen-stuck pieces by hand and loading them onto a scale one portion at a time. The spiral freezer runs at its rated speed. The manual portioning station runs at human speed. The mismatch between the two creates the backlog that defines the line’s real throughput \u2014 not the freezer spec sheet.<\/p>\n

This article covers the engineering of the gap between spiral freezing and automatic weighing: why frozen poultry and marinated meat products behave differently at the portioning stage, what the condensation adhesion problem actually is and how it causes traditional automation to fail, and how a small-footprint \u043c\u043d\u043e\u0433\u043e\u0433\u043e\u043b\u043e\u0432\u043e\u0447\u043d\u044b\u0439 \u0432\u0435\u0441\u043e\u0432\u043e\u0439 \u0434\u043e\u0437\u0430\u0442\u043e\u0440 \u0441\u043e \u0448\u043d\u0435\u043a\u043e\u0432\u044b\u043c \u043f\u0438\u0442\u0430\u0442\u0435\u043b\u0435\u043c<\/strong> closes the gap without requiring a floor-plan redesign.<\/p>\n<\/article>\n

\"Spiral<\/p>\n

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Section A<\/div>\n

The Spiral Freezer Bottleneck: Why Portioning Is the Weak Link<\/h2>\n

What Happens at the Spiral Discharge Point<\/h3>\n

A spiral flat top chain freezer discharges product continuously at the chain’s linear speed \u2014 typically 5 to 25 metres per minute. For frozen chicken wings, a medium-capacity spiral freezer might discharge 800 to 1,200 kg per hour in a continuous stream.<\/p>\n

The product at discharge is surface-frozen: the exterior of each piece is hard, the core may still be partially soft, and \u2014 critically \u2014 adjacent pieces on the chain are in contact with each other during the freezing process. The result is a product stream that is partially agglomerated: pieces lightly bonded by ice bridges at their contact points.<\/p>\n

This is the first reason manual portioning stations are slow: operators must break the agglomerated product apart before it can be weighed. The breakage force required varies unpredictably piece-to-piece, and the work is ergonomically demanding in sub-10\u00b0C conditions.<\/p>\n

The Condensation Adhesion Problem<\/h3>\n

When frozen product exits the spiral freezer at -18\u00b0C to -25\u00b0C and enters a 4\u00b0C processing room, its surface is significantly colder than the ambient air. Moisture condenses almost immediately \u2014 and on a frozen food surface, it freezes within seconds, creating a thin ice film on every piece.<\/p>\n

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\u26a0\ufe0f<\/span>
\nWhy This Breaks Vibratory Automation<\/span><\/div>\n

Standard vibratory multihead weighers rely on vibration to move product across stainless steel chutes from infeed to weighing hoppers. In a cold-chain environment with condensation-iced product surfaces, vibration does not reliably move product \u2014 the ice film creates a friction coefficient that resists the vibratory force. Product stalls on the chutes, accumulates, and eventually bridges \u2014 requiring manual intervention that reintroduces exactly the labour cost the automation was supposed to eliminate. Increasing vibration amplitude does not solve this and damages fragile frozen product.<\/p>\n<\/div>\n

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Section B<\/div>\n

Screw Feeder Technology: Forced Displacement in Cold-Chain Conditions<\/h2>\n

The screw feeder multihead weigher replaces vibratory motion with positive, forced displacement: a rotating screw moves product from the hopper to the weighing hoppers by physically pushing it, regardless of the friction characteristics of the product surface. Ice-glazed chicken wings, frozen-bonded marinated meat pieces, and cold-sticky poultry parts all move reliably because the screw does not rely on gravity or vibration \u2014 it overcomes adhesion mechanically.<\/p>\n

How the Screw Handles Spiral-Discharged Frozen Product<\/h3>\n

In an integrated layout, the discharge from the flat top chain feeds directly into the screw feeder hopper. The screw’s rotating action does two things simultaneously:<\/p>\n

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  1. It breaks the light ice bridges<\/strong> between adjacent pieces \u2014 the agglomeration that forms on the spiral chain \u2014 through the mechanical action of screw rotation, without the impact forces that damage frozen product surfaces<\/li>\n
  2. It moves product positively<\/strong> into the weighing hoppers at a controlled, consistent rate \u2014 independent of product temperature, surface ice coating, or piece-to-piece friction variation<\/li>\n<\/ol>\n

    Poultry Parts Automatic Weighing: The Combination Algorithm<\/h3>\n

    Once product is in the weighing hoppers, the multihead weigher’s combination algorithm selects the combination of hoppers whose combined weight is closest to the target portion weight. For a 500g frozen chicken wing portion, the system evaluates thousands of combinations per second across 10 or 14 weighing heads, achieving \u00b10.5% accuracy consistently<\/strong>.<\/p>\n

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    \u2713<\/span>
    \nAccuracy that manual portioning cannot match in cold conditions<\/span><\/div>\n

    Operators working in 4\u00b0C environments with cold product suffer from reduced manual dexterity and visual estimation accuracy over the course of a shift. The weigher’s accuracy is consistent from the first portion of the shift to the last \u2014 a difference that compounds into significant giveaway reduction over a full production week.<\/p>\n<\/div>\n

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    Section C \u2014 Application Scenario<\/div>\n

    Frozen Chicken Wings in a 4\u00b0C Portioning Room: Full Line Flow<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    \u042d\u0442\u0430\u043f<\/th>\n\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435<\/th>\nCold-Chain Consideration<\/th>\n<\/tr>\n<\/thead>\n
    1. Spiral discharge<\/strong><\/td>\nFlat top chain conveyor exit<\/td>\nProduct exits at -20\u00b0C; condensation begins immediately on surface<\/td>\n<\/tr>\n
    2. Transfer conveyor<\/strong><\/td>\nStainless steel modular belt, sloped<\/td>\nBelt material selected for ice-release properties; slope angle prevents product accumulation<\/td>\n<\/tr>\n
    3. Screw feeder infeed<\/strong><\/td>\nHopper with rotating screw<\/td>\nScrew breaks agglomerated pieces; anti-condensation heating on all electronics<\/td>\n<\/tr>\n
    4. Weighing heads<\/strong><\/td>\n10\u201314 head screw feeder multihead weigher<\/td>\nIP67 sealed construction; heated internal enclosures prevent moisture ingress<\/td>\n<\/tr>\n
    5. Portion discharge<\/strong><\/td>\nTimed discharge chute to bagger<\/td>\nPortion drops directly into VFFS or premade pouch bagger below<\/td>\n<\/tr>\n
    6. Sealing<\/strong><\/td>\nVFFS or tray sealer<\/td>\nJaw temperature adjusted for cold-temperature film sealing<\/td>\n<\/tr>\n
    7. Date coding & metal detection<\/strong><\/td>\nInline on exit conveyor<\/td>\nStandard integration; no cold-chain modification required<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Marinated Meat: Same Logic, Different Surface Challenge<\/h3>\n

    For marinated products \u2014 BBQ chicken chunks, teriyaki beef strips, Korean-style marinated pork \u2014 the adhesion mechanism is different but the solution is the same. Marinade viscosity increases at 4\u00b0C, making the product surface more adhesive than at room temperature. At sub-zero, the marinade partially freezes, creating a surface that is sticky, icy, and highly resistant to vibratory movement.<\/p>\n

    We cover the specific challenges of marinated meat packaging in detail in our guide to mastering wet and marinated food packaging (#12)<\/a> \u2014 including how the scraper hopper design prevents marinade build-up inside the feeder system.<\/p>\n

    Ready-to-Eat Meal Assembly: Food Service Automation at the Portioning Stage<\/h3>\n

    For food service automation applications \u2014 contract catering, airline catering, ready-to-eat meal assembly lines \u2014 the portioning stage is the highest-labour point in the production process. The screw feeder multihead weigher in this context is typically integrated with a multi-lane discharge that portions directly into multiple tray lanes simultaneously, maintaining the throughput required by a high-speed meal assembly line.<\/p>\n

    For an application-specific case study of this integration in a ready-meal and kimchi production environment, see our kimchi and ready-meal packaging automation guide (#43)<\/a>.<\/p>\n

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    Section D \u2014 Product Specifications<\/div>\n

    IP67 Screw Feeder Multihead Weigher: Cold-Chain Configuration<\/h2>\n

    Not all screw feeder multihead weighers are built for cold-chain production environments. The standard industrial specification that works in an ambient snack packaging facility will fail within weeks in a 4\u00b0C meat processing room \u2014 because the electrical and electronic components are not designed for the condensation, humidity, and thermal cycling of a cold-chain environment.<\/p>\n

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    \ud83d\udd27<\/span>
    \nAnti-Condensation System (\u9632\u7ed3\u9732\u8bbe\u8ba1)<\/span><\/div>\n

    Internal resistance heaters maintain the temperature inside all electrical enclosures above the dew point of the room air, preventing condensation from forming on circuit boards, sensors, and load cell connectors. Without this system, condensation accumulates and causes intermittent electrical faults \u2014 the kind that disappear when the enclosure warms up during troubleshooting, making them extremely difficult to diagnose.<\/p>\n<\/div>\n

    \n
    \ud83d\udd27<\/span>
    \nIP67 Waterproof Construction<\/span><\/div>\n

    All enclosures are sealed to IP67 \u2014 complete dust exclusion and protection against temporary immersion. This is the minimum for a machine that will be hosed down with high-pressure water and food-grade sanitiser at the end of every shift. IP65 (water jet resistance only) is insufficient for meat processing environments where puddles form during washdown.<\/p>\n<\/div>\n

    \n
    \ud83d\udd27<\/span>
    \nScrew-Driven Forced Feeding<\/span><\/div>\n

    Forced displacement by screw rotation is the engineering principle that makes cold-chain portioning automation viable. The screw geometry \u2014 pitch, diameter, and rotational speed \u2014 is configured for the specific product: finer pitch for smaller pieces (chicken wings), coarser pitch for larger pieces (chicken breast fillets, diced beef).<\/p>\n<\/div>\n

    \n
    \ud83d\udd27<\/span>
    \n5-Minute Tool-Free Disassembly<\/span><\/div>\n

    The screw, hopper, and all product-contact components are removable without tools for daily deep cleaning. In a meat processing environment with 2026 food safety audit standards, a cleaning procedure that requires a maintenance technician or more than 10 minutes is a procedure that gets shortened under production pressure \u2014 creating the hygiene risk that auditors look for. Tool-free quick-release clamps make compliant cleaning the path of least resistance.<\/p>\n<\/div>\n

    \n
    \ud83d\udd27<\/span>
    \nCold-Resistant Lubrication<\/span><\/div>\n

    Standard food-grade lubricants become viscous at 4\u00b0C and can freeze at sub-zero temperatures. Cold-chain-specified lubricants maintain consistent viscosity from -20\u00b0C to +40\u00b0C, covering the full operating range from frozen storage environments to washdown with hot water.<\/p>\n<\/div>\n

    \n\n\n\n\n\n\n\n\n\n\n\n\n
    \u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/th>\nStandard Ambient Weigher<\/th>\nIP67 Cold-Chain Screw Feeder Weigher<\/th>\n<\/tr>\n<\/thead>\n
    \u0420\u0435\u0439\u0442\u0438\u043d\u0433 \u0437\u0430\u0449\u0438\u0442\u044b<\/td>\nIP54\u2013IP65<\/td>\nIP67 minimum<\/strong><\/td>\n<\/tr>\n
    Anti-condensation<\/td>\nNot included<\/td>\nInternal heating on all enclosures<\/strong><\/td>\n<\/tr>\n
    Feeding mechanism<\/td>\n\u0412\u0438\u0431\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0439<\/td>\nScrew forced displacement<\/strong><\/td>\n<\/tr>\n
    Cold-chain lubrication<\/td>\nStandard food-grade<\/td>\nCold-rated, -20\u00b0C to +40\u00b0C<\/strong><\/td>\n<\/tr>\n
    Disassembly for cleaning<\/td>\nTool-required, 20\u201340 min<\/td>\nTool-free, <5 min<\/strong><\/td>\n<\/tr>\n
    Operating temp range<\/td>\n10\u00b0C \u2013 40\u00b0C<\/td>\n-10\u00b0C \u2013 40\u00b0C<\/strong><\/td>\n<\/tr>\n
    Suitable for frozen products<\/td>\n\u274c Condensation ice causes stalling<\/td>\n\u2705 Designed for this condition<\/td>\n<\/tr>\n
    Suitable for marinated meat<\/td>\n\u274c Chute adhesion<\/td>\n\u2705 Screw clears adhesive product reliably<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n
    Section E \u2014 Layout Design<\/div>\n

    Small Footprint Integration: Designing Around a Spiral Freezer<\/h2>\n

    Spiral freezers are large. The floor area around and below the spiral tower is typically limited \u2014 and in a retrofit scenario, that limited floor area is exactly where the portioning and weighing system needs to fit.<\/p>\n

    The space-saving design principle is vertical stacking<\/strong>: the screw feeder weigher is positioned directly below the spiral discharge, with the VFFS bagger or tray loader positioned below the weigher’s discharge chute. The product moves downward through the system by gravity, with no horizontal conveyor runs between stages.<\/p>\n