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Mconvey Gravimetric Blender delivers high-precision, real-time blending for demanding plastic processing. With a modular design (2–8 component groups), precision-cast valves, and self-learning control that auto-adjusts to formula changes, it ensures consistent accuracy.
Model:
| Model | Number of hoppers | Number of feed screw | Maximum processing capacity (KG/H) |
|---|---|---|---|
| LSGB-200-2HP-6 | 6 | 0~2 | 200 |
| LSGB-100 | 2~6 | 2~6 | 120~200 |
| LSGB-200 | 2~6 | 0~2 | 200~380 |
| LSGB-600 | 2~6 | 0~2 | 560~970 |
| LSGB-1200 | 2~8 | 0~1 | 1050~1750 |
| LSGB-2000 | 2~8 | 0~1 | 1750~2700 |
| LSGB-3000 | 2~8 | 0 | 2700~3900 |
| LSGB-5000 | 2~8 | 0 | 4000~5200 |
| Note：Production Test Parameters: Pellet size 4–6 mm, bulk density 0.65 kg/L (not suitable for powders or light/thin flake materials). | |||
| Voltage：3θ，380V，50HZ | |||
Accurate weighing:
High-precision load cell ensures accurate weighing and formula of materials.
Even mixing:
Efficient mixing devices quickly and evenly mix materials to avoid stratification and agglomeration.
Automated control:
Automated operations, including feeding, weighing, mixing and unloading, reduce manual intervention and improve efficiency.
Data recording and tracking:
Record the weighing and mixing data of each production to facilitate quality tracking and management
Compact size. meeting the requirements of customers with limited installation space, can be directly installed on the injection molding machine/extruder for online use.
Accuracy. precise dosing and mixing by combining weight loss and weight gain to ensure output and accuracy.
Customized. gravimetric doser can be mounted on extruder or installed at side of Extruder/injection machine, for feeding of masterbatches or additives, flexible online color dosing.
1. What is a Gravimetric Blender used for?
A Gravimetric Blender is an automatic material mixing system used to accurately measure and blend different plastic materials according to preset weight ratios. It is mainly used for mixing virgin resin, recycled materials, masterbatch, and additives in plastic processing.
Compared with traditional manual mixing or volumetric blending, a gravimetric blender uses weight-based control to ensure stable material ratios, consistent product quality, and reduced material waste.
It is widely applied in plastic extrusion, injection molding, blow molding, film production, and recycling applications.
2. What is the difference between volumetric and gravimetric blending?
The main difference between volumetric blending and gravimetric blending is the measuring method.
A volumetric blender controls material feeding based on volume, while a gravimetric blender measures materials by weight through load cells and continuously adjusts the feeding rate.
A gravimetric blender offers higher accuracy because it automatically compensates for material density variations, flowability changes, and other factors that may affect dosing consistency.
For plastic manufacturers requiring stable color, precise formulation, and consistent product quality, gravimetric blending is a more reliable solution.
3. Can a Gravimetric Blender mix masterbatch?
Yes. A Gravimetric Blender can accurately mix masterbatch with plastic resin and additives according to the required percentage ratio.
The system precisely controls each component, ensuring uniform color distribution and stable product performance during production.
It is especially suitable for applications requiring strict color consistency, such as: Plastic pipes, Film and sheet extrusion, Injection molded parts, Packaging products, Recycled plastic processing.
4. What materials can be processed by a Gravimetric Blender?
A Gravimetric Blender can handle various types of plastic materials, including:
The system can be customized according to material characteristics, production capacity, and processing requirements. For materials with different flow properties or special requirements, Mconvey provides customized dosing and blending solutions to ensure stable feeding performance.
5. How accurate is a Gravimetric Blender?
A Gravimetric Blender provides high-precision material dosing by continuously measuring the actual weight of each component and automatically adjusting the feeding speed.
Compared with volumetric systems, gravimetric blending significantly improves mixing accuracy and reduces fluctuations caused by material density changes.
