Coloring with liquid can be a challenging operation. It all depends on reliable dosing, often at extreme low dosage rates. Variation in viscosity of liquids and spill-free handling are the main issues.
Movacolor has developed a modular liquid dosing system with one universal motor unit, two pump types and several spill-free packaging concepts. This offers you the possibility of composing your optimum configuration.
The peristaltic pump is used in processes with frequent color change. Available as gravimetric & volumetric dosing system.
A gravimetric peristaltic pump is an ideal combination for color changes. The gravimetric control automatically compensates for the disadvantages of a peristaltic pump: the output of a peristaltic pump is heavily depending on the viscosity of the liquid, the type of pump hose used and the age/ wear of the pump hose.
In case of long runs we advise to use a mono pump. Available as gravimetric & volumetric dosing system.
Both systems are also available in a volumetric configuration.
To complete the package we supply in-line mixers and special nozzle adapters for easy installation and easy cleaning. MCLiquid: your total liquid dosing concept.
For the most PET injection molding or extrusion processes the normal inline dosing principle works without the use of inline mixers. But when the plasticizing screw of the extruder or injection molding machine has a limited homogenization capability, it is beneficial to use an inline mixer.
A selection from our inline mixer product range (for information about these products, please contact our dosing specialists):
Whether or not to use an inline mixer depends on the kind of plastic production process. The dosing specialists of Movacolor can give you a professional tailor made advice based on your type of production process. Movacolor has developed a range of inline mixers that perform optimal in homogenization and coating of low melting colors or additives.
The motorized inline mixers in the Movacolor product range are ideal for use in the most demanding applications for both injection molding and extrusion applications. The complete inline mixer construction is made of robust stainless steel, together with the small 3-phase motor this results in a compact, solid and durable end product. The inline mixer is available as single inline mixer or combined water-cooled neckpiece inline mixer.
For PET applications a special inline mixer is designed with integrated water cooled flanges. The inline mixer is available with the 50 mm outlet or the 90 mm outlet depending on the size of the PET processing machine. Both type of inline mixers can be carried out with an extra water cooled flange for mounting a second Movacolor dosing unit.
The inline mixers have a user-friendly design which makes it easy in use. The disassemble process of the inline mixer is made simple. Just remove the 3 phase-motor of the inline mixer with the counter rotating mixer blades and all parts are reachable for maintenance and cleaning.
With a MCHybrid 30 or MCHybrid 200 blending and dosing system the main materials or regrinds are mixed in a compact gravimetric batch blender. Next to that the additives are dosed gravimetrically in-line, directly on the throat of the IMM or extruder.
By using the blending and dosing technology of the MCHybrid 30 and MCHybrid 200 in one machine, you are able to control the capacities of the main materials in any given ratio and dose materials like regrind and masterbatch at low percentages with great accuracy.