IFP EUROPE

International Paint&Coating Magazine
JULY 2013

Italian technology in high efficiency and low consumption vacuum cleaning machines: IFP’s solution

ifp

IFP Europe Srl is a company based in Cittadella (PD), Italy. Established by a team of engineers with extensive experience in the cleaning industry, IFP has positioned itself among the European leaders in its target market in just seven years. The company produces systems for cleaning metal parts of any size: the cleaning machines of the KP range, thanks to the treatment cycle with vacuum values up to one millibar and to the interesting standard and optional equipment, are an excellent solution even where a high degree of cleanliness is required. In their MIKRO, BASIC, HMA and MAX versions, these systems meet the most varied production requirements, from the dental implant surgery to the large die cast components, up to the accessories (Opening Photo). The various versions diff er in the volumes and dimensions of the parts that they are able to process. Furthermore, all the systems can be modified according to customer needs and are delivered only after performing functional tests with the customers and analysing the results in the IFP laboratory to ensure their specific cleaning requirements are met.

IFP technology

All systems are characterised by:

  • Continuous filtration of the solvent;
  • Drying and deodorising of the chips before the opening of the filter;
  • Continuous distillation of the solvent;
  • Continuous separation of the emulsion with an automatic water drain system;
  • Complete separation of the oil from the solvent, with an automatic drain system;
  • Continuous detection of the operational data;
  • Remote connection via internet;
  • Easy access for maintenance.

The vacuum treatment allows to reduce the cycle times and the energy used by the plant, with a 100% increase in production capacity. It perfectly degreases, cleans and dries any kind of component, even in the presence of complex geometries and of blind and capillaries holes, thus drastically reducing the consumption of solvent compared to the atmospheric cleaning machines. Moreover, the solvent is not thermally stressed and maintains its characteristics for a long time, allowing to be reused for many cycles.
“Generally, our cleaning machines are designed to be used with modified alcohols or hydrocarbons, but we are able to adapt to any customer requirements since, in case they wanted to use solvents such as, for example, perchlorethylene, there is no need for any changes”, Giacomo Sabbadin, technical director and co-owner of IFP, explains. “When our company was founded, the market was at a particular stage.
The solvents considered ozone-destructive were banned, and many were focusing research and investment on the cleaning technologies with water-based detergents and products. In some fields, however, the detergents could not ensure the level of cleanliness required” Sabbadin continues, “and this forced the users to opt for polluting and hazardous solvents requiring expensive filtering and vapour abatement systems, which made the interoperational cleaning process very expensive and unproductive.”
“The cleaning machines are designed, built, assembled and tested at our premises” Sabbadin says. “ From the beginning, our research has focused on designing cleaning machines that would use solvents of last generation, high performing and the least possible harmful to the environment. A solvent, whatever its nature, is a polluting product. That is why the challenge of IFP over the years has been to minimise its consumption and completely eliminate the emissions. To ensure this, several solutions have been adopted.”

Technical characteristics

The cleaning cycles of the systems produced by IFP occur in a vacuum environment with the aid of ultrasound. Inside the cleaning chambers, there are submerged jets that generate turbulence and splashing to increase the characteristics of the solvent.
“Our vacuum technology also eliminates the well-known problem of ‘dragging’ with ease, through a system that few manufacturers in Europe implement” Sabbadin explains. “Dragging was a phenomenon that occurred because the parts were dried using fans or chillers; moreover, small accessories are full of blind holes, with many difficult-to-dry areas.
We solved this problem by equipping our cleaning machines with two vacuum pumps: the first one, a vane pump, is used until it reaches its maximum performance; afterwards, a high vacuum pump with a large capacity intervenes to dry and deodorise the parts. In this way, when the cleaning chamber is opened, there are neither dragging phenomena nor emissions.”

Low consumption, resource recovery and security

The advantages of the KP range are remarkable, not only in terms of quality and performance. With respect to energy savings, the cleaning machines have been designed focusing on two factors: energy consumption and processing material recovery, e.g. chips, oil and emulsion.
The machines are able to:

  • completely separate the machining oil from the cleaning solvent so as to recirculate it in the machine tools;
  • fully treat the chips, which are divided by type. The system is able to recognise the material through optical recognition systems and therefore to direct it automatically to a dedicated filter. With the installation of bypass filters, when the first filter is saturated (as is detected by a special probe), the system automatically directs the fluid to be treated to a second filter and, at the same time, cleans, dries and deodorises the dirty one (an operation that takes place through a system of high vacuum pumps that also manages to dry the packed chips). The operator has to perform only one operation, which is usually done once a week: removing the bag of clean, deodorised and dry chips. In this way, the washing machine can operate 24/7 without problems;
  • treat the emulsion from the parts through a third vacuum pump ensuring complete separation and recovery of the emulsified water and of any condensate. This process ensures the elimination of stains caused by salt residues on the parts. The treated water is completely separated from the solvent and discharged automatically without operator intervention.

“Our cleaning machines clean thoroughly and in half the time compared to most of the machines on the market. They ensure savings thanks to the very low consumption of resources: a few litres of solvent per year are sufficient, as reported by our customers. On the basis of these data, we try to develop ever more efficient machines” Sabbadin states.
As regards the solvents, the company has made a choice in line with its low environmental impact policy. “We place great emphasis on the use of modified alcohol due to its low environmental impact and on the elimination of waste: with a boiling point of 175°, it can be distilled under vacuum between 90° and 100°” Sabbadin explains. “The solvent, moreover, is recovered through a double distillation unit. When there is too high a concentration of oil inside the first distiller, the second one intervenes to treat the oil (stripping): this operation completely removes the solvent from the oil without stressing the latter.
The oil that we recover is analysed by the major oil companies, which always confirm that it is possible to reuse it, since it retains all of its features.”
In terms of safety, the systems used in the IFP washing machines allow to safely use modified alcohol. “In this respect, we comply with the most stringent international standards” Sabbadin says. “The machines are equipped with all the redundant controls (vacuum, temperature, three-step safety). Furthermore, in each heated unit there is a cold exchanger that activates in case the vacuum is missing or the temperature is too high, bringing the liquid to a safe temperature” Sabbadin continues.

High automation, low maintenance

For what concerns productivity, IFP has equipped its cleaning machines with automatic feeding systems that, upon request, can collect the baskets containing the parts to be washed directly from the workstations (e.g. lathes). At the exit from the cleaning machine, it is possible to install a packaging system. “The loading and unloading systems are designed and produced by IFP without the intervention of any external company. In this way, we are the only partner of our customers” Sabbadin says.
To further improve the efficiency of these cleaning machines and their integration into the production cycle, maintenance has been reduced to a minimum. “Normally, the traditional machines need to be opened every morning to be cleaned from the sludge. With our systems, however, this operation is not necessary, because the cleaning chambers are fully selfcleaning: neither residues nor crusts are formed, and it is not necessary to open the tanks, chambers and distillers to clean them” Sabbadin explains.

Upcoming projects

“At the moment, we have many important customers and have already installed hundreds of machines in Italy, Europe and the United States. Many companies have turned to us after unsuccessful searches lasted for several years at the international level and after they had already received many offers without finding the right solution to their problems” Sabbadin says. “I think that one of the key factors of our success, on which we place great emphasis, is the customer assistance. IFP offers a two-year full warranty: this means that, if even one bulb is broken, we will change it completely for free. In addition, we off er assistance with engineers located all over Italy and able to intervene within 4-8 hours. This is a factor that can be decisive for customers that are far away from our headquarters.”
“We are now designing a machine that works with mixed water-solvent cycles for some surface treatments that do not involve only the cleaning stage, and we strive to evolve in terms of automation and accessories” Sabbadin concludes

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