Spectroplus: One dosing system for all extrusion- and compounding tasks

SPECTROPLUS dosing and mixing unit with hopper loaders – here a modular design that is typical for film extrusion application (motan group)

As one of the most flexible overall systems in the motan product world, the synchronous dosing and mixing unit can be supplied in either gravimetric or volumetric versions or a combination and for both starve-fed and flood-fed extrusion applications. Up to 8 dosing modules are mounted on a frame and can be easily removed and installed without tools.

The exchangeable dosing modules as well as the easy-to-clean dosing hopper enable a quick material change and thus shorter production downtimes. Modules and the most diverse dosing screws can be changed in record time. In addition to the dosing modules for bulk solids, gravimetric supply hoppers with dosing pumps for liquids can be used, depending on the application adapted to self-lubricating or non-self-lubricating liquids.

The installation is not only simple, but also saves space due to its compact design. Using simple individual adapters, the SPECTROPLUS can be mounted directly on the machine feeder of the extruder or on a customer-specific mezzanine. Compared to predecessors products, the overall height was massively reduced, the throughputs are however still the same. Ideal for low production halls as well as for large projects.

Another highlight is the new load cell system, which consists of a combination of high-quality strain gauge load cells and a digital transducer electronic of the latest generation. Benefits of this new technology include ease of assembly and calibration, long-lasting and low-maintenance hardware, trouble-free signal transmission and low susceptibility to external interference. In just a few minutes, companies can get from the adjustment to the filtered measurement signal.

To complete this versatile unit, a completely new control has been developed – the SPECTROnet – which can control not only motan's own dosing modules, but also 3rd party dosing units. With a combination of advanced software and new high-quality hardware, the scope of application has been increased, the control time improved and the susceptibility to interference significantly reduced.