What Are Raw Material Dosing Systems?
Raw material dosing systems are critical equipment that ensure different raw materials, additives, and masterbatch materials are fed in accurate proportions in plastic production processes. The precision of the dosing (feeding) process is essential for product quality and process stability. Therefore, in modern production lines, dosing systems operate together with feeders, control units, and automation infrastructure to provide maximum accuracy. At the same time, these systems guarantee the repeatability of production recipes
Volumetric and Gravimetric Dosing Solutions
Volumetric dosers are practical and cost-effective systems that feed materials in fixed volumes. Single volumetric dosers are used for constant-ratio additive applications, while twin volumetric dosers allow the controlled feeding of two different materials simultaneously. These systems typically operate based on a screw feeder or disc feeder principle, ensuring a continuous and stable material flow
Gravimetric dosers are high-precision systems that measure materials based on weight. Operating with load cell technology, these machines minimize dosing errors through real-time measurement and feedback. They are especially preferred in applications where color consistency and additive ratios are critical. In addition, they can work integrated with blender systems, making multi-material management easier
Feeders and Integrated Systems
Raw material dosing systems are not limited to dosers alone; they also operate together with feeders, vacuum loaders, and central conveying systems. Vacuum material loaders transport materials from silos or storage units to the dosing unit. Central conveying systems, on the other hand, automatically distribute raw materials to multiple machines. This ensures continuous production processes without the need for operator intervention
Efficiency and Production Control
Raw material dosing systems directly affect production quality by ensuring plastic granules, additives, and masterbatch materials are blended in accurate proportions. In addition, automation integration minimizes human error and standardizes processes. Their energy-efficient design reduces operating costs while increasing production speed. As a result, properly configured dosing and feeding systems ensure maximum efficiency in production
Twin Volumetric Doser
A twin-component volumetric doser is a practical dosing solution that ensures two different raw materials or additives are fed continuously and in precise proportions in plastic production processes. Thanks to its volume-based operating principle, material flow remains consistent and the mixing balance is maintained throughout the production process. These systems offer an economical and efficient alternative, especially for masterbatch and additive applications
Specifications
- Level sensor with alarm buzzer system provides the operator with information about the material inside the dosing unit.
-Gravimetric precision with a special mixer motor that enhances homogeneity.
-Optional 2 or 3 station dosing system configuration.
-Easy operation and cleaning thanks to a modular design.
-Easy calibration and material or color change.
-Precise programming thanks to microcomputer.
-Automatic speed control with DC brushless stepper motor.
-Permanent memory function with real data.
-99 process memory slots.
-High-chrome coated screw.
Technical Parameters
| Model | Capacity (kg) | Screw Diameter (mm) | Reduction Ratio |
|---|---|---|---|
| VDD 30-12 | (0,3-2)*2 | 12 | 30:1 |
| VDD 30-14 | (0,3-5)*2 | 14 | 30:1 |
| VDD 30-16 | (0,5-15)*2 | 16 | 30:1 |
| VDD 30-20 | (0,5-25)*2 | 20 | 30:1 |
Single Volumetric Doser
A single-component volumetric doser is a practical dosing system that ensures a single raw material or additive is fed continuously and in controlled proportions in plastic production processes. Thanks to its volume-based operating principle, a consistent flow is achieved, ensuring stability in the production process. These systems provide an economical and reliable solution, especially for constant-ratio additive applications
Specifications
- Level sensor with alarm buzzer system provides the operator with information about the material inside the dosing unit.
-Gravimetric precision with a special mixer motor that enhances homogeneity.
-Easy operation and cleaning thanks to a modular design.
-Easy calibration and material or color change.
-Precise programming thanks to microcomputer.
-Automatic speed control with DC brushless stepper motor.
-Permanent memory function with real data.
-99 process memory slots.
-High-chrome coated screw.
Technical Parameters
| Model | Capacity (kg) | Screw Diameter (mm) | Reduction Ratio |
|---|---|---|---|
| VD 30-12 | 0,1-2 | 12 | 30:1 |
| VD 30-14 | 0,3-5 | 14 | 30:1 |
| VD 30-16 | 0,5-15 | 16 | 30:1 |
| VD 30-20 | 0,5-15 | 20 | 30:1 |
Gravimetric Doser
A gravimetric doser is a high-precision system that ensures raw materials and additives are dosed accurately based on weight in plastic production processes. Since it measures by weight rather than volume, it provides maximum accuracy in mixing ratios. This allows error-free and repeatable results, especially in production processes where quality standards are critical
Specifications
-Precise calculations enabled by a SIEMENS microcomputer.
-Permanent memory function with real data.
-Automatic feeding system.
-Easy operation and cleaning thanks to a modular design.
-Can be configured as an optional 2, 3 or 4 station dosing system.
-Special mixer motor that enhances homogeneity.
-Easy calibration process.
-Easy calibration and material or color change.
-Loadcell selection based on capacity.
Technical Parameters
| Model | Capacity (kg) | Maximum Number of Stations | Mixer Capacity (liters) |
|---|---|---|---|
| GD-40 | 40 | 4 | 6 |
| GD-80 | 80 | 4 | 6 |
| GD-200 | 200 | 4 | 20 |
| GD-400 | 400 | 4 | 20 |
| GD-600 | 600 | 4 | 40 |
| GD-800 | 800 | 4 | 40 |
| GD-1200 | 1200 | 4 | 80 |
| GD-2000 | 1500 | 4 | 80 |
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