Developments in materials management

Both silence and security in conveying of plastic granulate is now ensured by a newly patent applied for double-walled stainless steel material feed-line system called SilentLine from Motan-colortronic. The space between the two pipes forms an air buffer that insulates the inner material feed-line – and so the material which is being transported – from the surrounding environment. This dampens the conveying noise considerably and ensures a quiet working environment. SilentLine reduces the noise level by at least 12 dB(A). This is equivalent to a noise reduction of more than 50 percent. Gentle material conveying obtained by use of the IntelliFlow system from motan provides an additional six dB(A) of noise reduction.

In addition this system offers detection of a loss of vacuum within the SilentLine pipeline. This is unique in the market and ensures – with the aid of an externally applied flow sensor – that leaks can be immediately detected and eliminated. This means there is no longer any need for time and cost consuming visual controls along hundreds of metres of pipelines and laborious repairs. Because of its double pipe construction SilentLine ensures conveying continues even if a vacuum leak is detected so no interruption in material conveying or production outage.

A further advantage of SilentLine is that it acts as a heat insulator. The air buffer between the inner and outer pipes reduces heat loss from the pipeline to its surroundings. As dried material therefore reaches the processing machinery without cooling down to a critical level, there is then often no longer a need for installation of an additional local drier.

“SilentLine can be combined with great effect with all conventional pipelines from Motan, at critical points in production halls, or at particularly vulnerable pipeline sections. This makes a further contribution towards increasing efficiency in resources and energy,” says Ulrich Eberhardt, Group Managing Director & CEO at Motan Holding Gmbh in Konstanz.

Another high-end product is the Spectrocolor G in high temperature version. Precision and consistency of recipes are key factors in product quality and therefore also profitability. The Spectrocolor G mixing and dosing system hasentered the extrusion market based on Motan material management know-how. Used in applications that include for example blown film, profile and pipe extrusion, cast film and sheets, cable coating and fibres, but also compounding, means that all extrusion disciplines are covered. The high temperature version has been designed for material input temperatures of max. 180°C or 355°F.

In addition to the above mentioned applications, the high temperature Spectrocolor G can now also be used in the production of PA and PET fibres and high temperature sheets and films. Customer advantages: flexible, process oriented adaptation to flood-fed single-screw extruders as well as for starve-fed twin-screw extruders.

This mixing and dosing system is also characterised by high precision dosing that is maintained over the short and long term. It provides the user with highest blend consistency due to the motan specific gravity mixing principle. Reliablerefilling the Spectrocolor G is guaranteed with either positive closure pneumatic discharge flaps or a feed hopper with a double slide valve. Furthermore, the combination possibilities of up to six dosing modules, each with a throughput range of 0.2-1,200 kg/h per dosing axis, leaves virtually no option uncovered. The operator also has an intuitive control system available for his use – a touchscreen LCD-TFT colour display and an installation assistant (so-called wizard).

Process monitoring visualisedPuma Rihanna Creeper