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Mconvey Volumetric Doser is an automatic material dosing solution designed for plastic extrusion and injection molding applications.
It accurately feeds masterbatch, additives, resin and recycled materials according to preset ratios, ensuring stable color consistency and reliable production performance.
With single-color, double-color, triple-color and four-color configurations, the volumetric doser can be integrated with extruders and molding machines for continuous automatic production.
Model：
| Model | Output (kg/hr) | Hopper capacity (L) | |
|---|---|---|---|
| Single-color | LSCM-8 | 0.1~8 | 6 or 12 |
| LSCM-10 | 0.2~12 | 6 or 12 | |
| LSCM-12 | 0.5~20 | 6 or 12 | |
| LSCM-16 | 3~40 | 6 or 12 | |
| LSCM-20 | 5~80 | 6 or 12 | |
| LSCM-30 | 8~150 | 6 or 12 | |
| Double-color | LSCM-D | 0.1~150 | 6 or 12 |
| Triple-color | LSCM-T | 0.1~150 | 6 or 12 |
| Four-color | LSCM-F | 0.1~150 | 6 or 12 |
| Standard machine is suitable for 3–5 mm pellets with a bulk density of 0.65 kg/L. | |||
| Standard voltage: 1θ, 220 V, 50 Hz. | |||
Plastic Extrusion
Injection Molding
1. What is a Volumetric Doser?
A volumetric doser is an automatic feeding device that controls material output based on volume measurement.
In plastic processing, it is mainly used for adding masterbatch, additives and recycled materials into the main material flow. The dosing screw speed is adjusted according to production requirements to maintain a consistent mixing ratio.
Compared with manual feeding, a volumetric doser improves dosing stability, reduces material waste and helps maintain consistent product quality.
2. How Does a Volumetric Doser Work?
The control system sends signals to the dosing motor according to the preset ratio.
The motor drives the dosing screw, which transports masterbatch or additives from the hopper into the main material stream.
The dosing speed automatically synchronizes with the extrusion or molding machine speed, ensuring stable material proportioning during production.
3. What is the difference between volumetric doser and gravimetric doser?
A volumetric doser controls feeding based on volume, while a gravimetric doser measures material weight for higher precision.
4. How many colors can the doser handle?
Mconvey provides single-color, double-color, triple-color and four-color dosing solutions.
5. What applications can a volumetric doser be used for?
A volumetric doser is widely used in plastic processing industries, including plastic extrusion, injection molding and recycling material processing. It is designed for accurately feeding masterbatch, additives, resin and regrind materials into production lines.
In plastic extrusion applications, volumetric dosers are commonly used for PVC pipe extrusion, HDPE pipe extrusion, profile extrusion and sheet extrusion to ensure stable material feeding and consistent product quality.
For injection molding applications, they are suitable for adding color masterbatch and additives in the production of automotive parts, electrical components and consumer plastic products.
In recycling applications, volumetric dosers can be used for regrind feeding, additive dosing and material blending, providing a simple and reliable solution for processing recycled plastics.
