Weight-Based Dosing in the Plastics Industry: Millimeter-Level Precision
Discover the weight-based dosing systems for the plastics industry developed by TIM
The weight-based feeder: an essential weighing device in the plastics industry
The manufacturing process in theplastics industry requires the use of weight-based feeders to ensure accurate weighing of components. As a specialist in transfer, dosing, and de-molding equipment used in the plastics industry, TIM has developed single- and multi-product weighing units for batch, continuous, and post-weighing applications.
Table of Contents:
Principle and Operation of the Weight-Based Feeder
The weight-based dispenser accurately measures the weight of the components used in theplastics industry. This equipment, equipped with load cells, thus plays an important role in the plastics processing, particularly in the formulation of complex recipes.
In fact, this type of feeder—also known as a gravimetric feeder—ensures precise dosing of materials, regardless of their form (granules or powders). In addition, the flow of the products to be weighed is monitored and adjusted by an electronic control unit.
During a weighing cycle, the materials are gradually fed into the hopper. The data is then transmitted directly to the control unit by the load cells.
Weight-based dosing units designed by TIM feature modular designs, making it possible to combine different multi-product systems. And to ensure weighing accuracy, the platforms are equipped with load cells mounted on anti-vibration pads. The weighed products are mixed in the hopper, which is equipped with a helical “Vertical Mixing Unit.”
This equipment is used, in particular, in the manufacturing process for plastic films and sheets and synthetic fibers, as well as in the production of technical parts for the automotive, pharmaceutical, and electronics industries (injection molding, extrusion, rotational molding, blow molding). It can also be used to ensure the accuracy of the proportions of recycled materials and pigments during the recycling of plastics.
The Benefits of TIM's Weight-Based Feeder
Thanks to their high weighing accuracy, our weight-based dosing units help reduce raw material costs, as there is zero risk of overdosing. The system is controlled by a programmable logic controller (PLC), which regulates the filling of the weighing hopper and verifies that the product dosage meets the target weight before validating the process. The flow rate can be adjusted using actuators.
In addition, it is possible to store information on the quantities of ingredients used in each recipe, which makes it easier to comply with quality standards and customer specifications.
Variations in formulation, as well as manual interventions, are thus significantly reduced, leading to lower production costs.
If you are a professional in theplastics industry, your business likely requires the use of a high-performance . As specialists in dosing and weighing equipment for this sector, we offer a comprehensive range of single- and multi-product gravimetric dosing systems controlled by a PLC. We have also developed volumetric dosing systems capable of continuously dosing virgin or regrind materials.