Gamma Meccanica S.p.A.

The TANDEM technology applied to the recycling of heavily printed, contaminated and  high humidity plastic materials guarantees the excellent quality of the granule with a notable energy savings in comparison with conventional recycling systems that foresee the re-extrusion of the material.

The plant is composed of a COMPAC unit and two extruders arranged in succession.
The short, non-vented primary extruder and the larger diameter secondary extruder allow for a reduction of the cutting forces (“shear rate”) and stress less the melted material.

Between the first and second extruders there is a high performance degassing chamber. Here the surface of material exposed to vacuum is 10 times greater than the exposure of a normal extruder, guaranteeing the extraction of large quantities of gas and contaminants.

Another important benefit of the Tandem line is the possibility to have double filtration. The first is allocated between the primary and secondary extruder, and the second filtration is installed before the pelletizer. In the case of highly contaminated materials, the first screen changer has the function of course filtration, while the second one allows for finer filtration of the material.

 

The COMPAC regeneration lines represent  the most advanced technology in the market.

They are highly flexible and  able to recycle most types of plastics from different forms: films, ground and densified materials, rolls.
This type of line is available in different models depending on the production capacity.
Every line can be customized upon request with additional components to satisfy the customers’ requirements.

Plastic recycling lines are ideal to recycle plastic materials in form of film or granules using a grinding mill.

A conventional line consists of:

• grinder,
• forced feed,
• extruder,
• screenchanger
• pelletizer.

The grinder for plastic recycling
The grinder present in the plastic recycling line breaks down the material to be recycled making it more suitable for the recycling process.

From the grinding mill the material is conveyed the to the forced feeder.

The forced feeder for plastic recycling lines
The forced feeder ensures a functional and homogenous flow of plastic material to the extruder.

This type of the line is available in several models depending on the required output of plastic material.

Underwater pelletizer TI allows the granulation of plastic materials with high MFI (such as PET, Nylon, etc) and low viscosity that cannot be processed with conventional systems.

Water ring pelletizer TDA is a conventional system for plastic recycling that allows a fast start/stop sequence and rapid material change. It can be installed on lines suitable to most plastic materials.