THE ULTIMATE SOLUTION: GHA ANTIBACTERIAL MOTORS FOR FOOD, PHARMACEUTICAL AND MEDICAL APPLICATIONS
G.H.A.® represents the cutting-edge advancement in surface treatment technology for aluminium-based alloys, offering a range of benefits for industries that demand high standards of cleanliness, durability and performance. This article explores the groundbreaking features of this technology, its advantages over stainless steel and its potential to redefine industrial standards.
New motor line GHA with silver treatment, patented by Carpanelli Motori Elettrici S.p.A. The G.H.A.® is the most recent and innovative technology applicable to the surface of all aluminium-base alloys. It consists of a special anodic oxidation treatment, with thickness ranging from 1 to 100 μm, followed by the sealing of the micro porosities through silver ions (Ag+). This new silver treatment created for aluminium alloy motors, gives the motors antibacterial properties and as such offers a valid alternative to stainless steel motors or indeed other expensive treatments.
These motors are perfect for those industries, such as food and pharmaceutical, where a clean and aseptic environment is needed.
This treatment gives the motors interesting characteristics, such as :
•Resistance to corrosive agents, bringing the motors to the same level as stainless steel motors;
•Better electrical and thermal conductivity, allowing the motor to dissipate 35% more heat than nontreated aluminium, and 10 times more than stainless steel;
•Anti-mould and germicidal properties, making these motors suitable for aseptic environments than stainless steel motors;
•High resistance to abrasive wear;
•High hardness.
The main advantages of these new motors, compared to stainless steelmotors, are:
•Germicidal properties against the principal bacteria dangerous to the human organism;
•Lower weight, because aluminium weights 1/3 of stainless steel;
•Non-magnetic and therefore capable of resisting high voltages;
•High thermal conductivity (204 W/m°C) compared to stainless steel (15 W/m°C), almost 15 times more;
•Higher motor efficiency, the greater heat dissipation of aluminium keeps the motor cooler and, consequently, the lower intrinsic resistance, keeps the motor’s efficiency constant;
The main advantages of using these motors instead of stainless steel motors are:
•Safety and sterility: silver’s antibacterial properties allow the motors to be used in close contact with food, preventing microbial contamination and somehow “disinfecting” the food; interesting advantage for those companies that have to observe international norms for the hygiene of their products. In addition to that, the materials used in the manufacture of these motors are non-toxic and non-absorbent, so, in any given working environment, they do not release or retain any toxic contamination that they may have been in contact with.
•Nickel-free: while stainless steel contains Nickel, antibacterial motors don’t. As it is known, Nickel is dangerous for the human organism; this innovative silver treatment avoids this problem.
Electrical performances: the high thermal conductivity of this aluminium treated with silver, permits the motor to dissipate 10 times more heat than stainless steel; the motors will therefore run much cooler. Working at lower temperatures guarantees a longer life of the components, a reduced chance of wear and corrosion of internal components and, in addition to that, they are not dangerous for operatives that may come into contact with the motor’s surface. Also the electrical efficiency level of the motor takes advantage from the lower temperature
CLEANING OF THE TREATED SURFACES:
Surfaces treated with silver are sensitive to too basic pH. Therefore, it is suggested to clean the surfaces with neutral or barely aggressive washings, with pH not more than 9. In this way, resistance to corrosion and antibacterial properties are guaranteed.
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