DOSING SYSTEMS
LOSS IN WEIGHT (LIW) FEEDER
Stock Code:

Loss-in-Weight (LIW) Feeder systems are engineering solutions that provide superior precision and efficiency through weight-based continuous measurement technology in industrial dosing processes. The LIW feeder offers maximum accuracy in dosing operations by monitoring raw material weight in real-time and dynamically adjusting the feeding speed. Equipped with advanced sensor technology, these systems optimize production quality while reducing raw material waste across the chemical, plastic, rubber, masterbatch, and textile sectors. These cost-effective solutions, backed by Puls Electronic’s expertise, enhance your business's digital transformation and profitability by establishing sustainable quality standards on industrial production lines.

Key Highlights of the System:

  • Dynamic Accuracy: Real-time weight monitoring ensures the feed rate is always optimized, regardless of material density changes.
  • Sectoral Versatility: Specifically designed for demanding applications in chemical, plastic, rubber, masterbatch, and textile industries.
  • Operational Efficiency: Minimizes raw material waste, directly contributing to higher profit margins and sustainable production.
  • Digital Integration: A critical component for modern production lines looking to achieve full digital control and traceability.
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GENERAL INFORMATION
The Puls Elektronik LIW feeder (Loss-in-Weight Weighing System) optimizes the material feed rate within milliseconds according to weight loss data using a closed-loop control mechanism. The system continuously monitors the total mass in the weighing hopper; when the amount of material leaving the hopper deviates from the target flow rate, the control unit instantly revises the motor speed. This dynamic calibration capability provides a linear flow, unaffected by raw material density changes or mechanical vibrations. Advanced software filters and superior measurement capability make high-precision dosing possible in even the most demanding industrial environments. LIW feeder solutions, which can be customized according to businesses' operational needs, offer instant access to all critical production data via a user-friendly touchscreen interface. The modular design of the system provides advantages of fast installation and easy maintenance for different raw material types (powder, granules, fibrous) and capacity requirements. While remote service and software update possibilities guarantee that the system always operates at peak performance, its stainless steel construction fully meets the requirements of hygiene-oriented sectors such as food and pharmaceuticals.
ADVANTAGES AND USAGE AREAS

Loss-in-Weight (LIW) Feeder systems offered by Puls Electronic are high-tech solutions that measure raw material weight in real-time and instantly regulate feeding speed in industrial dosing processes. Equipped with advanced sensor technology, this system offers maximum accuracy during the dosing operation, minimizing the margin of error. It reduces raw material waste and standardizes production quality, especially in sectors requiring precise mixing such as chemicals, plastics, rubber, masterbatch, and textiles. Developed with over 25 years of engineering experience, these systems ensure full compatibility with your existing production lines. Through continuous data flow and adaptive control mechanisms, they optimize plant efficiency while demonstrating stable and sustainable performance even under demanding industrial conditions.

Advantages and Usage Areas:

  • Continuous Dynamic Control: The ability to track material weight reduction in real-time and correct deviations from target values within seconds.
  • Maximum Raw Material Savings: Reducing costs by preventing the unnecessary use of expensive additives and raw materials through high-precision measurement.
  • Masterbatch and Plastic Applications: Ensuring homogeneous and precise mixing of colorants and additives into the main raw material.
  • Advanced Sensor Technology: Stable weighing performance with load cells (loadcell) that remain unaffected by industrial vibrations and interference.
  • Rubber and Chemical Sector: Safe and error-free dosing of aggressive or difficult-to-flow chemical components.
  • Traceability and Reporting: Instant tracking of production data via a digital control panel and detailed reporting capabilities for quality control processes.
  • Composite Production: Linear feeding of fiber and dye additives synchronized with the overall process speed.
  • Rapid Integration and Service: Fast installation, easy-to-clean design, and continuous spare parts support provided directly by the manufacturer.
SCREW TYPE
SPIRAL SCREW AUGER SCREW
Gearbox Max. Screw Speed Ø 16x12 L/h Ø 30x16 L/h Ø 50x25 L/h Ø 50x50 L/h Ø 17x11 L/h Ø 32x16 L/h Ø 51x25 L/h Ø 51x50 L/h
5 : 1 / 300 5-100 28-533 86-1635 151-2854 3-53 20-375 74-1395 126-2385
7,5 : 1 / 200 2-47 14-248 42-762 73-1330 1-25 10-175 36-650 61-1111
15 : 1 / 100 1-25 7-133 22-407 39-711 1-13 5-93 19-347 33-594
Protection Rating :
IP20
Operating Temperature :
-10 +45°C
Weighing Unit :
Pulscell Weighing System
Feed Accuracy :
±%0.2
Feed Type :
Screw Mixer Screw and Vibrated (Optional)
Feed Screw :
Spiral Screw/Auger Screw
Engine Operating Voltage :
220 V.AC.

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OUR ALTERNATE PRODUCTS

Puls Volumetric Feeders are high-durability and cost-effective solutions that operate on the principle of volumetric measurement in industrial dosing processes. This system, which performs dosing based on the volume scanned by the feeding screw per unit of time, ensures the homogeneous feeding of bulk materials such as powders, granules, and similar substances. Its stainless steel structure, developed with over 25 years of experience, offers long-lasting use and minimum service requirements in demanding industrial environments. Serving as a more economical alternative to gravimetric systems, these feeders stand out with a guarantee of optimum efficiency and spare parts continuity, especially in processes where material density remains constant.
Volumetric and Gravimetric Vibratory Feeders are advanced industrial solutions that provide homogeneous flow control in the dosing processes of materials that are difficult to feed, such as glass fiber. The advanced vibration technology developed by Puls Elektronik maximizes production efficiency by ensuring the transfer of materials to the system through precise volumetric or weight-based (gravimetric) measurement. These systems offer a cost-effective structure that raises quality standards by preventing raw material waste.
The Batch Type High Precision Micro Feeder is a micro-feeding solution focused on consistency and repeatability, providing precision dosing at the gram level in industrial processes. It plays a critical role especially in the pharmaceutical, food, chemical, and additive manufacturing (3D printing) sectors. <br> The system feeds a wide variety of materials, such as powders, granules, and fibers, with high precision. Thanks to its advanced PLC control and touchscreen interface, it enables the fully automated dosing of very small quantities of material. Its corrosion-resistant stainless steel design and minimum dust emission feature significantly enhance production quality.
Batch Type Gravimetric Feeders, offered by Puls Elektronik, are high-precision weighing and dosing systems developed for "batch/lot" based recipe management in industrial production lines. Equipped with advanced loadcell technology, these systems minimize waste rates by operating with a precision of ±0.01 g, even at very low quantities. In sectors such as food, pharmaceuticals, and chemicals, where the margin of error must be near-zero, they maximize operational efficiency by providing consistent quality and full traceability in every batch.
Floor-standing Type Gravimetric Feeder is a professional gravimetric feeder solution that operates on the "Loss-in-Weight (LIW)" principle in industrial dosing processes and offers a higher feeding capacity compared to standard models. Thanks to its advanced weighing platform, the system measures the amount of material in real-time and instantly optimizes the motor speed, ensuring maximum raw material savings with 0.2% precision. This floor-standing design, which guarantees an uninterrupted and homogeneous flow on large-scale production lines with its expanded material hopper structure, maximizes operational efficiency through its closed-loop control mechanism.
Gravimetric Single Screw Dosing System is a cost-effective gravimetric feeder solution designed to operate in demanding industrial environments based on over 25 years of manufacturing experience, offering high durability and long life with its stainless steel structure. Thanks to superior software technology and its real-time adaptive filtering feature, it ensures precise and homogeneous feeding of raw materials, providing optimum dosing with 0.2% accuracy. The system, which offers superior measurement and sampling capabilities, ensures sustainability by minimizing service requirements through spare part continuity derived from our manufacturing power. Capable of managing up to 20 feeders and refill bunker controls from a single panel via its user-friendly software, this technology is offered with our engineering capacity to quickly realize non-standard designs.