Enhancing Ingredient Accuracy and Efficiency? Loss-in-Weigh Feeder Technology is Your Reliable Answer for Continuous Production

In industries such as chemicals, plastics, food, pharmaceuticals, and mining, precise, continuous, and reliable material feeding and dosing are critical to ensuring product quality, optimizing production efficiency, and reducing raw material waste. Facing increasingly stringent process requirements and cost pressures, traditional volumetric feeders (such as screw feeders and belt conveyors) can sometimes fall short. In these cases, Loss-in-Weigh Feeder (LIW) technology becomes the ideal solution for achieving higher precision and stability.

What is a Loss-in-Weigh Feeder? The Core Principle Explained

A Loss-in-Weigh Feeder, as the name suggests, is an advanced device that achieves precise feeding control by continuously measuring the rate of material weight loss. Its core operating principle is clear and efficient:

1. Weighing Unit: The entire feeding system (including the hopper and feeding mechanism) is placed on high-precision load cells.
2. Continuous Weighing: The system continuously monitors the total weight of the material in the hopper.
3. Calculating the Loss Rate: The control system (such as a PLC) precisely calculates the actual material flow rate (e.g., kg/h, lb/min) based on the weight loss per unit of time.
4. Closed-Loop Control: The actual flow rate is compared in real time with the preset target flow rate.
5. Dynamic Adjustment: The control system immediately issues instructions to dynamically adjust the feeding mechanism (such as screw speed or vibration amplitude) to ensure that the actual flow rate consistently matches the target flow rate.

This closed-loop control based on actual weight changes fundamentally overcomes the impact of material characteristics (such as bulk density variation, poor flowability, particle size differences, and moisture absorption) on feeding accuracy, which is a significant advantage over volumetric feeders.

Why Choose a Loss-in-Weigh Feeder? Unmatched Core Advantages

1. Outstanding Feeding Precision:
   • High precision: Typical accuracy can reach ±0.25% – ±1%, or even higher, making it ideal for applications with small quantities, valuable materials, or strict ratio requirements.
   • Real mass flow rate: Directly measures and controls mass flow, unaffected by fluctuations in material physical properties.
2. True Continuous Feeding:
   • In the mainstream mode, loss-in-weight scale feeder machine provide true continuous material output, perfectly suited for continuous production processes (e.g., extrusion, reaction, granulation), avoiding fluctuations caused by batch production’s start-stop cycle.
3. Wide Material Adaptability:
   • Can handle materials ranging from ultrafine powders, bridging materials, and fibrous materials to freely flowing granules, tablets, and small lumps. By selecting different feeding mechanisms (single/double screw, vibrating trays, belt conveyors) and optimizing hopper designs (e.g., with mixers or fluidization devices), it effectively solves the feeding challenges of various difficult-to-handle materials.
4. Formula Flexibility and Control Integration:
   • Easily achieves accurate dosing of multiple materials in precise ratios, making it ideal for complex formulations.
   • Standard communication interfaces (e.g., Modbus, Profibus, Ethernet/IP) facilitate integration into factory DCS or SCADA systems for centralized monitoring and automated production.
5. Reduced Waste, Improved Cost Efficiency:
   • Extremely high precision directly reduces raw material waste.
   • Stable feeding enhances final product consistency and yield.
   • Reduces downtime or defective products caused by inaccurate feeding.

Key Application Areas of Loss-in-Weigh Feeders

Industrial weighing loss-in-weight feeder is widely applied in industries where precise dosing is crucial:

• Plastic and Masterbatch Production: Accurate addition of color masterbatches, additives, and fillers (e.g., calcium carbonate, glass fibers).
• Food Processing: Adding ingredients (e.g., flour, sugar, milk powder, flavoring, vitamins), seasonings, and micronutrients.
• Chemical Industry: Precise dosing of catalysts, flame retardants, pigments, additives, and reaction materials.
• Pharmaceutical Industry: Accurate ratio of active pharmaceutical ingredients (API) and excipients (compliant with GMP standards).
• Building Materials: Measurement of cement additives, pigments, and fibers.
• Mineral Processing: Precise addition of flocculants, flotation agents, etc.

As a professional manufacturer with years of experience in Loss-in-Weigh Feeder research and production, Jiangsu Awesome is dedicated to providing high-performance, reliable, and customized feeding solutions to customers worldwide.

Accurate and Reliable: We use industry-leading weighing technology and control algorithms to ensure long-term stability with precision of ±0.5% or better.

Tackling Challenges: We have rich experience and patented technology in handling various difficult-to-feed materials (such as poor flowability, moisture absorption, bridging, abrasiveness, ultrafine powders).

Durable and Robust: Our equipment is made with high-quality materials and fine craftsmanship, ensuring long service life in demanding industrial environments.

Flexible Customization: From micro lab scales to large industrial scales, from standard models to custom designs for special conditions (high temperature, high pressure, explosion-proof, sterile), we can meet all your needs.

Intelligent Control: Equipped with advanced touchscreen controllers, offering intuitive operation, extensive data logging, and diagnostic functions, seamlessly integrated into your automation system.

Global Service Network: We provide professional pre-sales consultation, engineering design, installation, commissioning, operator training, and efficient after-sales support worldwide.

Optimize your dosing process today! Whether for a new production line or upgrading existing equipment, Jiangsu Awesome’s Loss-in-Weigh Feeder technology can significantly improve ingredient accuracy, production efficiency, product quality, and reduce overall costs.