A dosing masterbatch or feeder is designed to add minor material to the main material stream at the throat of an injection or extrusion machine. Common components include choke adapter, DC motor, measuring spiral and speed control/interface.
Dosing is triggered or controlled by the processing machine itself. In injection molding, as the machine rotates, a dose calibrated to the shot size of the molding machine and the required amount of additive are introduced into the gravity flow of other materials by a rotating spiral. In extrusion, since the machine works continuously, a fixed dose is added at a certain rate and synchronized with the speed of the extruder.
Masterbatch dosing system
The in-line gravity masterbatch dosing system ensures optimal dosing in the extruder process in extrusion and injection molding machines. This system can be upgraded to a multi-component dosing system to dose up to six additives simultaneously.
For high output processes, our engineering department developed the dozer output. This special masterbatch dosing system has a capacity between 50 kg/h and 1000 kg/h. Of course, a high level of precision is guaranteed during masterbatch dosing.
The smallest masterbatch capacity that can be dosed with in-line feeders is not less than 0.1 kg/h.
Simultaneous dosage of masterbatch and regrinding material
With this masterbatch dosing system, it is possible to dose masterbatch with regrinding materials. This technology ensures a lower weight dose of waste. It detects the amount of regrind and adjusts the masterbatch dosage automatically.
The SCM series volume dozer is suitable for injection molding and blow molding of plastic extrusion, which can be used for automatic proportional mixing of raw materials, grinding materials, masterbatch or additives. The injection molding mode supports multiple external signal input modes. Two doses are available for multi-component applications. This masterbatch dozer can work with autoloader to automatically transfer the masterbatch to the dosing unit.
Masterbatch dosing facilities
To ensure fast and smooth dosing, a high-precision servo motor has been used.
Equipped with 1:5 gearbox to increase torque and reduce overload
Power ranging from 0.1 to 130 kg/h per turn.
Easy and user-friendly touch screen control.
Chrome plated screw for more durability.
Modular design for easy color change and maintenance;
Synchronization of masterbatch dosage ratio with extruder speed in extrusion mode.
Uninterrupted production recovery in case of power failure.
Material cleaning for easy masterbatch replacement.
Up to 50 memory slots to receive materials
The ability to monitor, warn and stop the device when the masterbatch is blocked through overload.
Micro dose mode support. Masterbatch takes X doses once per cycle.
High temperature volumetric dozer with water cooling tank can process materials that reach drying temperature of 180°C.
Gravity or volumetric masterbatch dosing system
The choice between a weight or volume dosing system depends on the needs of the plastic manufacturing company. Pars Company offers a wide range of weight dosing systems from the smallest 0.07 kg/h to 1000 kg/h. Plastic manufacturers who are looking for volumetric masterbatch dosing systems can also inquire about a wide range of products and accessories from our experts through communication channels.