FILLING SYSTEMS

Loss-in-Weight Feeder (Gravimetric Dosing System)

TWL series loss-in-weight feeder for precise gravimetric dosing of powders and granules in continuous processing, blending, extrusion and compounding.
Filling Weighing
01

Product Overview

The TrueCare TWL Series Loss-in-Weight Feeder is a high-precision gravimetric dosing system for bulk powders and granules. It continuously weighs the hopper and adjusts screw speed in real time to hold an exact feed rate, compensating for changes in density and flow that volumetric feeders cannot. This delivers consistent recipes in continuous blending, extrusion, compounding, coating and pharmaceutical continuous manufacturing, while cutting raw material waste. Hygienic stainless construction and easy-access screws suit food, pharma, chemical and plastics plants.

The system features a screw-type dosing mechanism or Positive displacement transfer pump capable of delivering materials in both coarse and fine flow modes to suit downstream process requirements. It functions based on the negative weighing principle, where the change in weight over a specific period is used to regulate and adjust the feed rate automatically. Real-time corrections are made by modifying the screw speed or change of speed of transfer pump to maintain alignment with the predefined set-point, ensuring a steady flow despite variations in material characteristics.

The TWL-100 can be mounted in a free-standing frame on the floor or suspended from overhead structures, offering installation flexibility in various industrial setups.
02

Applications

The TrueCare TWL weigh in loss feeder is ideal for precise, continuous dosing in industries such as:

  • Food processing (e.g., seeds, grains, powders)
  • Pharmaceuticals and chemicals
  • Plastic and polymer manufacturing
  • Fertilizer production
  • Any application that demands accurate and consistent material dosing
03

Standard Features

  • Gravimetric Feed Control: Measures actual material loss by weight for reliable dosing.
  • High-Sensitivity Load Cell: Uses a top-grade electronic strain gauge sensor for fast and accurate weight detection.
  • Dual Flow Feeding: Capable of both coarse and fine flow through variable screw speeds.
  • Auto-Regulating Control Logic: Instantly adjusts screw speed to maintain target feed rates.
  • Flexible Installation: Can be floor-mounted or ceiling-hung depending on site layout.
  • Durable Construction: Built to handle demanding environments with long-term operational stability.
  • Low Maintenance Design: Factory-calibrated and designed to require minimal routine servicing.
  • User-Friendly Interface: Intuitive controls for setup and monitoring; PLC integration supported.
04

Technical Specification

Parameter Specification
Machine Capacity1-10 kg/h
Hopper Volume35L
Strain Guage100kg
Operating PrincipleGravimetric dosing (Negative Weighing)
Material Feeding MethodDosing screw with adjustable flow rates
Weighing TechnologyPlatform or Three-Point Load Cell System
Sensor TypeHigh-sensitivity electronic strain gauge
Feed Rate RegulationAutomatic set-point-based speed adjustment
Compatible MaterialsGranules and powders with good flow properties
Control SystemIntegrated Controller with PLC compatibility
Measurement Accuracy±0.5% to ±1% (depending on application)
Net Weight65 kg Approx.
Machine Dimension (Approx)800x700x900
Servo Motor220V 1Ph.0.5 kw
AugerSingle Screw
Accuracy± 0.5 - 1 %
Power
Feeding0.5 kw
Stirrer0.25 kw
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