Case history
Hereafter are some special cases where the solutions provided by Gamma Meccanica have been very successful.
How to recycle and save up to 40% energy
We collected data from a customer who, thanks to the new ECOTRONIC shredder designed for the GM160 line, was able to have a 40% of energy saving. The line with the new shredder AFT160 ECOTRONIC is dedicated to the recycling of HDPE films.
The consumption with the line GM160 + shredder AFT 160 (old model) was about 14024 kw, therefore the average consumption was 116.8 kw/h in 120 hours of continuous functioning.
The average consumption with the line GM160 + new shredder AFT 160 ECOTRONIC: about 98 hours of continuous functioning with the consumption was 6330 kw/h. So the average consumption is 64.6 kw/h or about 40% less.
Considerting that in the Country of this customer the energy has an average cost of 0.10 € per kw/h per hour of work, the saving for each hour of the functioning is € 5.22.
Therefore, 6500 hours of work per year will save € 33,930.00.
Recycling line for polyester fibres (P.E.T.)
The line has been designed for a large North American company specialized in the production of carpet. In the recycling of materials with high fluidity such as polyester (P.E.T.) and polyamide (PA) the most important issue is the need to limit the fall in the value of intrinsic viscosity (IV). This value determines the mechanical performance given by the material.
The lines proposed by Gamma Meccanica S.p.A. allow to easily handle these materials and contain the IV fall. Apart from polyester, this line can be used to recover polyamide (PA), in this case, the line will be mainly employed to recover carpet scraps and grinded fabric. The line is a GM 125 consisting of a conveying belt, a shredder, an extruder, a screen changer and a pelletizer especially designed for this type of application.
The extruder is equipped with a double degassing chimney to exhaust the gas produced during the extrusion process and there is a ratio between the length of the screw and its diameter of 43D. Connected to the extruder there is a hydraulic screen changer with 3 plates that work simultaneously.
At the end of the line there is an underwater pelletizer with a centrifuge. The die is completely immersed in the cooling water, creating a layer of film around the granules as soon as they come out of the die. Each single particular of the machine is made of high quality materials, which guarantees high reliability. The line is controlled by a PLC system that allows monitoring of all working phases. Its production capacity is 600-700 kg/h.