A weighing and feeding system is the heart of any process that demands recipe accuracy and consistency. These systems use high-precision load cells and intelligent controls to automatically deliver an exact weight of material. We engineer both Gain-in-Weight systems for creating multi-ingredient batches and Loss-in-Weight systems for highly accurate continuous feeding.

Product giveaway due to overfilling is a direct loss of profit. Inconsistent batches lead to quality failures. Our gravimetric systems solve both problems. For batch production, a Gain-in-Weight system uses a central weigh hopper fed by multiple ingredient feeders, creating a perfect recipe every time. For continuous processes like extrusion or coating, a Loss-in-Weight feeder provides a smooth, highly accurate mass flow of material, ensuring your final product is perfectly uniform. We integrate the right feeding technology (screw, vibratory) with the right weighing technology to build a reliable, accurate, and cost-saving solution.

 

    • Weighing Technology: Gain-in-Weight (GIW) Batching, Loss-in-Weight (LIW) Continuous/Batch Feeding, Weigh Belt Feeders
    • Feeding Mechanism: Screw feeders (single/twin), Vibratory feeders, Rotary valves
    • Accuracy: From ±0.5% (standard) to ±0.1% or better (high precision)
    • Capacity: From micro-dosing (grams/hr) to bulk handling (tons/hr)
    • Control: Recipe management, batch reporting, automatic material refill control, calibration routines
    • The Process: Is it a batching process (GIW) or a continuous feed process (LIW)?
    • The Material(s): Provide a list of all materials, their flow properties, and bulk densities.
    • The Recipe: For batching, what are the component weights and required accuracies?
    • The Rate: For continuous feeding, what is the target mass flow rate (kg/hr)?
Material option A Frame & Structure: Stainless Steel 304/316L
Material option B Contact Parts: Polished Stainless Steel, FDA-compliant Polymers
Finish Industrial grade, Sanitary polished (Food/Pharma/Hygienic)
Dimensions Custom made design and built by your requirements
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More Information

  • FAQ -
    • Q1: What is the main difference between Gain-in-Weight (GIW) and Loss-in-Weight (LIW) systems?
    • A1: In a GIW system, the receiving vessel is on a scale, and it measures the weight gained as ingredients are added. It's excellent for creating batches from multiple ingredients. In an LIW system, the source hopper/feeder is on a scale, and it measures the weight lost as it feeds. It's more complex but provides superior accuracy and is the standard for continuous feeding at a set rate.
    • Q2: How accurate are these systems?
    • A2: Accuracy depends on the technology and the application. A well-designed Gain-in-Weight batching system can typically achieve an accuracy of ±0.5% of the full scale capacity. A high-performance Loss-in-Weight feeder can achieve accuracies of ±0.25% or even better of the set feed rate, which is why they are used for critical, low-dose additives.
    • Q3: How do you handle vibrations from the plant floor that could interfere with the scales?
    • A3: This is a critical design consideration. We use several techniques: mounting the weighing system on an independent, rigid frame; using vibration-damping pads; and most importantly, using advanced digital filtering in the weighing controller's software to intelligently ignore the "noise" from plant vibrations while still accurately measuring the change in material weight.
    • Q4: Can these systems handle powders that don't flow well?
    • A4: Yes. The weighing part is separate from the feeding part. We select the appropriate feeding mechanism for your powder. For non-free-flowing or cohesive powders, this often means using a screw feeder with a special agitator in the hopper to ensure a consistent flow of material to be weighed.
    • Q5: What is a multihead weigher, and how is it different from these systems?
    • A5: A multihead weigher is a specialized type of Gain-in-Weight system used almost exclusively for packaging discrete items (like chips, candy, or nuts). It uses a combination of many small weigh buckets to create a perfect target weight. The systems we are describing here are typically used for in-process batching or continuous feeding of bulk powders and granules.