Automatic Nuts Mix Weighing and Packaging System | Multi-Ingredient Premium Nut Premade Bag Packaging Line

Industry Pain Points

• ·Uncontrollable formula ratio deviation and compliance risks: Traditional pre-mixing process causes severe material layering due to differences in particle size, density and shape between nuts and dried fruits, leading to inconsistent ingredient ratio in each package. This violates strict food labeling and allergen control regulations in the EU, North America and other regions, bringing huge product recall risks and irreversible brand reputation damage.

• ·High nut breakage rate and raw material loss: Roasted nuts and crispy dried fruits are easily broken, chipped and scratched during conveying and weighing in ordinary equipment, with breakage rate as high as 5% or more, resulting in serious raw material waste, poor finished product appearance and loss of product premium capacity.

• ·Severe cross-contamination and allergen risks: Shared conveying and weighing channels for different nut ingredients (including allergen nuts such as peanuts, cashews and almonds) lead to cross-contamination, which fails to meet the strict allergen management requirements of international markets, and may cause serious food safety accidents.

• ·Unstable weighing accuracy and raw material waste: Different nut ingredients have huge differences in fluidity, bulk density and particle size. Ordinary single weighing systems cannot balance the weighing accuracy of all materials, leading to frequent overweight/underweight issues, and annual raw material loss of up to hundreds of thousands of dollars for large-scale manufacturers.

• ·Heavy manual dependency and low production efficiency: Traditional high-end premade bag nut production requires extensive manual work for bag picking, weighing, filling and sealing, leading to soaring labor costs, low production efficiency, frequent human errors, and high microbial contamination risks from manual contact.

• ·Poor sealing performance and short shelf life: Nuts are rich in unsaturated fatty acids, which are prone to oxidation and rancidity. Ordinary packaging machines have uneven sealing, leading to air leakage, moisture regain and shortened shelf life, bringing huge after-sales return and complaint losses.

• ·Long formula changeover time and poor flexibility: Switching between different nut blends, formula ratios and packaging specifications requires long debugging time on traditional equipment, resulting in frequent unplanned downtime, unable to adapt to the fast-response demands of e-commerce multi-SKU and small-batch customized production.

Core Customer Demands

• ·Exclusive multi-material independent weighing system with A/B scale dual-channel mode, to ensure 100% accurate and consistent formula ratio in each package, fully comply with international food labeling and allergen control regulations.

• ·Full-process gentle anti-breakage design, to protect the complete appearance and crisp texture of nuts and dried fruits, minimize product breakage rate, and reduce raw material waste.

• ·Fully independent material conveying and weighing channels, to completely avoid cross-contamination between different nut ingredients, especially allergen nuts, and meet the strictest international food safety requirements.

• ·Fully automatic 8-station rotary premade bag packaging, to realize unmanned production from bag picking to finished product output, reduce manual contact, avoid microbial contamination, and improve production efficiency.

• ·High-strength airtight sealing structure, to effectively prevent oxidation and moisture regain of nuts, extend product shelf life, and reduce after-sales losses.

• ·One-click fast formula and specification changeover, to adapt to multi-SKU production demands, reduce production downtime, and improve the flexibility of production scheduling.

• ·Full food-grade SUS304 stainless steel structure, no sanitary dead corners, IP65 waterproof design, easy to disassemble and clean, fully meeting FDA, BRC, HACCP, IFS and other international food safety certification requirements.

• ·Stable 24/7 continuous production capacity, low failure rate, easy operation and maintenance, to reduce later operation and maintenance costs.

Our Tailored Complete Solution

Core Solution Units

1.20-head/24-head Multihead Weigher (A/B Scale)

• ·Exclusive A/B dual-channel independent design: The weigher can be divided into 2 or more independent weighing groups, realizing synchronous high-precision weighing of 2 or more different nut ingredients at the same time, with fully independent channels to completely avoid cross-contamination between ingredients.

• ·Smooth anti-breakage 304 stainless steel hopper, specially optimized for fragile roasted nuts and dried fruits, with gentle material handling design to effectively avoid nut chipping, scratching and breakage during weighing, ensuring the complete appearance of high-value nut products.

• ·Equipped with high-precision load cells, weighing accuracy up to ±0.3g, ensuring consistent formula ratio and net content of each package, fully complying with international food metering regulations.

• ·Full SUS304 food-grade stainless steel main structure, IP65 full-machine waterproof rating, tool-free quick disassembly design, easy to clean and disinfect, no sanitary dead corners.

• ·Built-in intelligent control system, supporting one-click formula switching, real-time production data monitoring, and full signal linkage with the downstream packaging machine.

2.Bowl-type Elevator

·Professional food-grade bowl-type elevator with flexible anti-drop food-grade hoppers, realizing smooth and gentle vertical lifting of various nut ingredients to the upper feeding hopper of the multihead weigher, no impact, no breakage, no material scattering or leakage.

• ·Fully enclosed structure design, no dust, no cross-contamination, full SUS304 stainless steel construction, easy to disassemble and clean, in line with food-grade production requirements.

• ·Variable frequency speed control, can be flexibly adjusted according to material characteristics and production beat, ensuring stable and continuous feeding for the weigher.

  3.Supporting Platform

• ·Heavy-duty food-grade SUS304 stainless steel supporting platform with anti-slip design and safety guardrails, providing stable and safe installation space for the multihead weigher, effectively reducing the impact of equipment vibration on weighing accuracy.

• ·Humanized design with maintenance access and cleaning space, facilitating daily equipment maintenance, disassembly and high-pressure cleaning, adapting to the frequent cleaning needs of food-grade production.

• ·Customizable height and structure according to workshop layout and equipment matching requirements, with strong load-bearing capacity and stable structure.

  4.8-station Rotary Premade Bag Packing Machine

• ·High-performance 8-station rotary packaging machine, specially optimized for nut products, automatically completing bag picking, bag opening, date/batch coding, material filling, bag mouth cleaning, multi-layer airtight sealing and finished product output in one continuous rotary process.

• ·Compatible with various mainstream high-end nut packaging bag types, including stand-up pouches, zipper bags, quad-seal bags, flat bags and gusset bags, adapting to packaging specifications from 20g trial packs to 1kg family packs.

• ·Optimized multi-layer sealing structure for nut products, realizing firm and uniform airtight sealing, effectively preventing air leakage and oxidation, locking the crisp taste and freshness of nuts, and extending product shelf life.

• ·Full SUS304 stainless steel structure, food-grade contact parts, no sanitary dead corners, easy to clean, fully meeting international food safety certification requirements.

• ·Full signal linkage with the multihead weigher, realizing precise synchronous filling, ensuring accurate formula ratio in each bag, and avoiding material waste and bag pollution.

Standard Automated Workflow

1. ·Different nut and dried fruit ingredients are manually poured into the corresponding silos of the bowl-type elevator, which gently lifts the materials to the upper feeding hopper of the 20-head/24-head multihead weigher, with fully enclosed conveying to avoid material breakage and cross-contamination.

2. ·The multihead weigher operates in exclusive A/B scale mode, completing synchronous high-precision independent weighing of multiple nut ingredients according to the preset formula ratio. The weighed mixed materials are temporarily stored in the buffer hopper, and the weigher sends a ready signal to the packaging machine and waits for the discharge request signal.

3. ·The 8-station rotary packaging machine operates synchronously, completing automatic bag picking, bag opening, date coding and bag mouth positioning in sequence through the 8 rotary stations. After receiving the discharge signal, the weigher accurately discharges the weighed mixed nuts into the opened premade bag.

4. ·The packaging machine completes automatic bag mouth cleaning, multi-layer airtight sealing and finished product output through the subsequent rotary stations, with zero sealing defects.

5. ·Finished products are transported to the subsequent inspection, labeling or boxing link, realizing fully automated continuous production of the whole line.

Final Achievable Production Effects

• ·Ultra-high formula accuracy & full compliance: Independent synchronous weighing for multiple ingredients with ratio deviation controlled within ±0.3g, completely solving the material layering and ratio inconsistency problem of traditional pre-mixing process, 100% complying with FDA, EU and other international food labeling, metering and allergen control regulations, eliminating product recall risks.

• ·Ultra-low product breakage rate & reduced waste: Full-process gentle anti-breakage structure design, nut breakage rate ≤0.2%, reducing high-value raw material waste by more than 90% compared with traditional equipment, while maintaining the complete appearance and crisp texture of nuts, greatly improving product premium capacity and market competitiveness.

• ·Zero cross-contamination & food safety guarantee: Fully independent conveying, weighing and filling channels for different ingredients, completely avoiding cross-contamination between allergen nuts and other ingredients. Full food-grade SUS304 stainless steel structure, no sanitary dead corners, IP65 waterproof design, fully meeting FDA, BRC, HACCP and other international food safety certification requirements, helping you smoothly enter the global high-end nut market.

• ·Fully automated production & cost reduction: Full-process automation from material lifting to finished product output reduces manual labor demand by more than 95%, greatly cutting labor costs, eliminating human errors and microbial contamination risks from manual contact, and increasing overall production efficiency by 5-6 times compared with semi-manual production lines.

• ·Excellent sealing performance & extended shelf life: Optimized multi-layer airtight sealing structure achieves zero air leakage defects, effectively preventing nut oxidation, rancidity and moisture regain, extending product shelf life by more than 60%, and reducing after-sales return and complaint losses by more than 90%.

• ·One-click fast formula changeover & high flexibility: Intelligent control system supports one-click switching of ingredient ratio, packaging weight and product formula, with debugging time controlled within 5 minutes, perfectly adapting to multi-SKU and small-batch customized production demands, greatly reducing production downtime and improving the enterprise's ability to respond to market changes.

• ·Stable long-term operation & low maintenance cost: Full signal linkage between all units, optimized anti-blocking and wear-resistant structure, supporting 24/7 continuous stable operation, equipment failure rate reduced by more than 85%, greatly cutting unplanned downtime and later maintenance costs.

• ·Strong compatibility & scalability: Adaptable to various nut and dried fruit ingredients, packaging specifications from 20g to 1kg, and various mainstream premade bag types. Can be flexibly expanded with online metal detector, check weigher, labeling machine and other auxiliary units according to production needs, and seamlessly connected with your front-end production line and back-end palletizing system.

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