Trends in mixing resins

The blending process has undergone substantial improvement in the past few years owing to the many innovations launched by machinery producers. Moulded plastics are usually a mix of two or more materials, with the master batch and other additives blended with raw plastic material prior to the moulding process. There are many types of blenders/mixers and dosing units available that can be used for this purpose with a growing number aimed at achieving enhanced accuracy.

A range of dosing and mixing equipment systems are offered by Motan Inc. and these will be exhibited in a major North American show, NPE2012. Compounded material is expensive but guarantees good results. Blending needs to be done in-house to be profitable. Accuracy and consistency of the blend are the key factors in determining product quality. A great deal has changed at Motan Inc. (www.motan.com) in recent months. With the slogan “think materials management”, the company is presenting its entire portfolio of peripheral units for materials management. These include solutions for storage, drying and crystallisation, conveying, dosing and mixing, and instrumentation and control - for deployment scenarios ranging from injection moulding, extrusion, blow moulding and compounding to in-line applications and chemical processes. When it comes to handling of granulate, pellets, easy free-flowing and non-, free-flowing powders, Motan Inc. takes an application-driven approach. As a result, the company can find answers to all and any customer-specific challenges.

Spectrocolor G increased profitability in extrusion due to sustainable materials handling Adding to Motan’s know-how in the blending and dosing systems with its Graviblend and Graviplus units, the Spectrocolo G now enters the extrusion market building on the Spectrocolor V volumetric version. Motan has expanded its comprehensive product portfolio designed to cover all areas of volumetric and gravimetric materials blending and dosing. The compact Spectrocolor G of modular design for Loss-In-Weight (LIW) dosing of free-flowing granular material and regrinds affords the user a unit with an excellent price-performance ratio. Traditional application areas are flood-fed single screw and starve-fed twin screw extrusion.

Spectrocolor G from Motan is a continuous gravimetric dosing station based on the LIW principle. Its excellent short and long term dosing accuracy ensures the process reliability a processor needs for continuous manufacturing. Motan’s unique gravity mixing principle offers a high consistency of mix for all the components before they reach the extruder. This plays a key role in achieving perfect plasticisation and homogenisation of the blend.

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