project brief

Do the Math: Switching Scales Saves Cost of 100K$ Every Year. In the competitive snack industry, profit is measured gram by gram. Traditional manual labor or rough packaging often gives away 3-5 extra kernels per bag. Customers don't appreciate it, and the owner eats the loss.

category

Snack food

client

Chacheers

start date

Mar 13, 2018

end date

Feb 28, 2019

budget

$ 0.5 Million

innovative process

The challenge

What do nut companies fear most?

It’s the cost loss — where “an extra gram per bag means giving away 100 kg of good nuts over 100,000 bags.”
It’s the efficiency anxiety — where “a single machine packing only 300 bags per hour can’t keep up when peak-season orders pile up like a mountain.”
And it’s the quality headache — where “nuts jam, get crushed, or leave bags looking inconsistently full or empty.”

Especially when dealing with varieties that have large particle size differences, traditional quantitative filling machines often slow down production due to inaccurate weighing and poor adaptability.

project goals

Traditional quantitative filling machines often rely on “single-head weighing + manual filling.” When faced with the characteristics of nuts — “uneven particle size, easy bridging, and susceptibility to breakage” — they frequently fall short.

Our technical team, with 20 years of in-depth experience, has developed an exclusive solution by deeply integrating “multihead combinational weigher” technology with the specific requirements of nut packaging production.

  • Accurate to the Gram: ±0.1g Error Per Bag

    The core advantage of the multihead weigher lies in its “intelligent combination of multiple weighing units” — each head independently vibrates to feed material and performs precise weighing, with smart algorithms quickly screening for the “combination closest to the target weight.”

    For example, when set to 30g per bag, a 14-head scale will select the optimal combination with an error of ≤0.1g from dozens of combinations like “2.8g+3.1g+2.9g+…+3.2g” far exceeding the industry average standard of ±2g.

    Additionally, our team has optimized details for different types of nuts:

    • When packaging sunflower seeds, the vibration frequency is adjusted to 18Hz to prevent particle breakage from excessive vibration.
    • When packaging watermelon seeds, the inner walls of the weighing hoppers are coated with Teflon to prevent hard shells from jamming and causing measurement deviations.
    • When handling pumpkin seeds, the feeding opening width is increased to accommodate the flow characteristics of flat, round particles.

  • High Efficiency & Anti-Jamming: 8,000 Bags Per Hour, 50% Faster Than Traditional Equipment

    Traditional filling machines often shut down due to particles getting stuck at the feeding port, requiring manual cleaning an average of 3-5 times per hour — a serious blow to efficiency.

    Our multihead weigher features an innovative “twin-screw feeding + pneumatic bridge-breaking” design: the upper layer uses spiral blades for uniform material distribution, while the lower layer is equipped with a pneumatic tapping device that gently taps the feeding tube every 2 seconds to prevent nuts from clustering and jamming. Paired with an “anti-jamming photoelectric sensor,” once an abnormal material level is detected, the vibration frequency is immediately adjusted, enabling continuous, uninterrupted packaging.

    In terms of efficiency, the breakthrough is clear: a 10-head machine can complete 6,000-7,000 bags per hour, while the 14-head machine reaches up to 8,000 bags per hour — a 50%+ efficiency improvement over traditional single-head scales. Based on a 10-hour production day, a single unit can achieve a daily output of 60,000-80,000 bags, equivalent to the workload of 15 skilled workers.

  • Flexible Changeover: Switch Varieties in 10 Minutes, Adapts to All Nut Types

    Nut companies often need to produce multiple varieties simultaneously (e.g., 20g small-pack sunflower seeds, 50g family-pack watermelon seeds, 100g gift-pack pumpkin seeds). Traditional equipment requires disassembling and modifying molds and recalibrating for each changeover, taking at least 1 hour before production can resume.

    Our multihead weigher features a “modular scale body + one-touch parameter recall” design: Weighing parameters for different varieties (vibration frequency, feeding speed, target weight) can be preset on the touchscreen. During changeover, simply remove the old weighing hoppers, install new ones of the corresponding specifications, tap the screen to recall the parameters — and the switch is complete in just 10 minutes.

the result

Precision Packaging: Making “Every Gram Count” for Nut Companies

As the nut market enters an era of “refined competition,” the accuracy and efficiency of quantitative packaging directly determine a company’s cost control and market reputation.

Our multihead weigher — designed specifically for nut quantitative packaging — delivers tangible results with the proven capabilities of “±0.1g accuracy, 8,000 bags/hour efficiency, and 10-minute changeovers,” helping businesses turn “wasted nuts” into “real profits.”

Moreover, Multiweigher team’s customized solutions and after-sales service elevate the equipment from a mere “production tool” to a powerful “cost-reduction weapon.”

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