GRAVICOLOR 310/610

The high and consistent dosing accuracy of the GRAVICOLOR 310 and 610 mean that you can reduce the percentage of additives being dosed without a loss in quality and so save on materials and costs.

The GRAVInet GC-E, equipped with the integrated IntelliBlend function, continuously analyses all process data regardless of recipe, material, or operating environment, and achieves the optimum operating point at all times through self-optimisation. This maximum recipe accuracy ensures the highest and most consistent product quality.

The regrind management function of the GRAVInet GC-E automatically adjusts the dosed masterbatch quantity based on the available amount of regrind, preventing overdosing of the costly masterbatch. Weighing accuracy remains unaffected by machine vibrations, as these are filtered out by a specialised algorithm.

With proven motan quality, you not only ensure the highest dosing accuracy, but also save costs in your plant thanks to the long service life of the unit, the integrated conveying control and continuous self-optimisation through the IntelliBlend function. A price-performance ratio that is guaranteed to pay off!

The basic unit of the GRAVICOLOR 310 and 610 is designed to offer a high degree of flexibility in terms of the configuration and number of components. Up to eight material hoppers with five different dosing sizes can be used variably on the unit.

The stainless-steel material hoppers have continuously welded joints. This guarantees you contamination-free operation and easy clean down due to the high-quality surface finish.

The viewing window in the front door and the large viewing panes in the material hoppers ensure an excellent visual control of the ongoing process.

Quick material changeovers and cleaning are improved by the optimised modular design. The large front door, removable weigh bin and mixing chamber make it easy to change materials. The material hoppers can be removed with minimum effort but can also easily be emptied using the quick discharge pipe that is attached to each material hopper. The large viewing window is removable so enabling the material hopper and the hopper loader mounted above to be thoroughly cleaned.

The material hoppers have been designed to optimise material flow. In addition, all hoppers on the GRAVICOLOR 310 and 610 can be removed with little effort and are easy to clean.

All components are dosed using the unique motan cone dosing system. These batch dosing and mixing units therefore guarantee maximum dosing accuracy.

Cone dosing opens centrally and allows for symmetrical material flow. Any potential material bridges are destroyed through the vertical movement of the cone.

So, a clean material flow is always guaranteed, even for difficult flowing regrind materials such as flakes. The material hoppers can be equipped with five different cone sizes. Thanks to the variable selection of dosing modules, we can offer a customised solution for your process.

The weigh bin can quickly and easily be removed without the need for tools and can be cleaned away from the unit.

The mixing chamber with an offset material discharge prevents dead zones and provides a completely homogeneous mix.

It can be quickly, simply and easily removed for cleaning without the need for tools and cleaned away from the unit.

Thanks to the integrated conveying function in the GRAVICOLOR control system, a separate conveying control is not required. They can operate up to nine material loaders with a blower station. The GRAVInet GC‑E also allows operation of an additional stand-by blower. This enables, for example, the material supply for an eight‑component mixing station together with the processing machine to be controlled directly by the GRAVICOLOR unit.

The ionisation option blows ionised air into the weigh bin and mixing chamber. This reduces electrostatic adhesion of the materials to the surfaces of the GRAVICOLOR. This helps maintain a homogeneous mixture. The amount of ionised air can be individually adjusted via a throttle valve.

The sensor cleaning option uses a blast of compressed air to clean the lens of the infrared sensor during each batch cycle. This prevents dust accumulation on the sensor.

With the built-in sensor on the regrind component, the “regrind management” can be activated on the control unit. The intelligent control ensures maximum use of regrind and therefore a constant recipe mix with a step-by-step approach to recipe proportions.

GRAVInet GC-E:
The level monitoring for the individual dosing hoppers can be installed separately. This monitoring provides an early warning via an alarm when the material level in the hopper is low, ensuring timely refilling and uninterrupted production.

GRAVInet GC-N:
With this control, the level monitoring is already integrated.

The GRAVICOLOR 310 and 610 can be easily installed on the throat of a processing machine. The control systems feature an integrated function that effectively compensates for vibrations and oscillations.

Mounting the unit on the machine shortens the material path from the mixing chamber to the processing machine, helping to prevent unwanted material separation.

Alternatively, the dosing and mixing station can be placed next to the machine or operate as a central station supplying multiple processing machines.

The GRAVInet GC-E control system features an open network architecture on Ethernet. The full colour touch-screen display enables intuitive and secure operation with direct access to all process-relevant functions. Additionally, the control system offers comprehensive tools for process and workflow management. A regrind management function prevents overdosing of other components.

For quality assurance, CONTROLreport provides extensive reporting and documentation functions, complemented by advanced service tools and graphical process data views. The integrated event reporting allows detailed analysis of all parameter changes.

Multiple GRAVICOLOR units can be flexibly networked with each other or with other motan controls from the CONTROLnet family — ideal for complex plant systems. A central WEBpanel always provides an overview of the entire production.

The GRAVInet GC-N is based on Siemens S7 technology and has been specifically developed for the requirements of extrusion. Using ProfiNet, the system can be flexibly networked with other controls and easily integrated into existing production environments.

The 7″ full colour touch-screen display offers a clear and user-friendly interface with practical functions for alarm handling, diagnostics, configuration, and trend displays.

To ensure a stable production process, the control system delivers important diagnostic data on recipe and batch accuracy. Continuous monitoring of dosing profiles enables early detection of deviations and thus contributes to process stability.