
Filtration systems for vending machines
The secret of LIMONA FILTER to obtain high quality drinks
What is Limona Filter
New filtering systems for superior beverage quality
Limona Filter is the filtration system designed by W. F. Srl for vending and in particular for all machines and distributors of hot and cold drinks.
The innovative operating system of Limona Filter guarantees installations and pipes free from limestone, high quality water and tastier drinks without changing the natural taste and mineral properties of the water.
Limona Filter can be installed on all vending machines, from the largest to the smallest.
IS COMPACT
Thanks to the compact and ergonomic size and all in 137 gr. weight
IS EASY TO INSTALL
Thanks to integrated quick coupling system
IS ECO-FRIENDLY
No use of chemicals! Limona filter is totally eco-friendly because it acts by exploiting the natural molecular properties of water. No restrictions on disposal.
1OO% MADE IN ITALY
IS CONVENIENT
The operating system of Limona Filter guarantees a long service life, high and constant performance, reduced size and reduced operating costs.
IS SAFE
Laboratory tests certify and guarantee the perfect and constant operation of Limona over time


How Limona Filter was born
Genesis and Development of the new concept of water filtration in vending
In today’s changing global market, the ambition to find new and adaptable solutions to the real needs of consumers becomes the most effective response to the changing rules of trade and industry.
In a perspective of research and development of concrete alternatives to conventional ion exchange technologies, reverse osmosis and chemical softeners, a group of researchers decided to study a new solution to the various problems arising from the use of traditional water softeners.

The CWSR (Ceramic Water Scale Removing) is the result of a long and thorough research started in 2005 and aimed at the development of new materials and technologies that can be used in the field of water treatment. The result is an innovative and revolutionary product that in addition to responding effectively to all the needs of use, expresses the perfect synthesis of versatility, effectiveness and reliability, high performance with low consumption, reduction of operating costs, maintenance and finally respect for the environment. Laboratory tests and technical tests have shown that CWSR is able to guarantee an optimal performance completely respecting all the chemical and regulatory standards imposed by the most important international authorities in the water treatment industry.
W.F. Srl has decided to take up this challenge of innovation and current affairs: in 2014 from the meeting between the reality of research and development and the entrepreneurial and industrial reality of W.F. Srl, With many years of experience in the production of filtration and water softening equipment, LIMONA project was born.
LIMONA – The operating principle

The filtration system “Limona” works thanks to the CWSR ceramic micro spheres that during the production process are made charged “electrically” and equipped with an irregular surface, a combination that determine the crystallization of limestone.
In the incoming water there are naturally groups of calcium and magnesium bicarbonates that coming into contact with the electrically charged micro spheres trigger the reaction. The micro spheres intervene on the calcium bicarbonate (responsible for the limestone) removing it from the solution and creating aggregates of caco3 that bind to the micro spheres form crystals.
Once they have grown in volume, these crystals dissociate themselves from the spheres without changing their state and are then transported by the flow. The caco3 formed is therefore stable, no longer dissolves in the water and is stopped by a second filter located downstream. The outgoing water is thus deprived of the chemical species responsible for the formation of limestone, but still rich in all its mineral components that characterize the quality and taste, without the need for any re-mineralization.
In this sense it is important to specify that the Limona does not retain magnesium (retained instead by the classic filtration systems) fundamental component of the taste of the water and consequently also of all the drinks that are prepared with it.
It is also important to point out that the CWSR does not alter the natural pH of water, but keeps it that way. In addition, the Co2 generated during the process and present in the outgoing water flow actively contributes to dissolve pre-existing limestone incrustations.
In summary, the water generated is free of calcareous potential, but rich in all the chemical and mineral characteristics that guarantee tastier drinks and better quality.
LIMONA, why?
Currently, the market for filtering and sweetening systems for hot and cold drinks vending machines is considerably closed and the offer is limited to a few suppliers that ,at least to date, do not offer diversified alternatives or ad hoc solutions to meet the different needs of operators in the sector. Most of the products currently on the market offer almost the same type of process and therefore also the same limits.
Having said this, it seems that most of the filters for vending machines currently on the market have the same characteristics:
- Limited life
- Considerable size
- Frequent replacement
- Need to re-mineralize after treatment.
- Low sustainability
Limona represents the ideal exceeding of the limits found in most filtration systems currently on the market and is therefore the ideal solution as a filtration and treatment system in the VENDING and HO.RE.CA equipment.
Water treatment in the vending sector: the reasons to choose LIMONA as a filtering system in hot and cold beverage distributors:
- prevents the formation of limestone and acts effectively against pre-existing incrustations
- no chemical use, no re-mineralisation
- a single size for any type of water and any degree of hardness
- quick and easy installation
- smaller size compared to the most popular filtration and treatment systems in the vending industry
- greater duration over time at the same volume
- maximum reliability, proven by laboratory tests and international certifications
- does not change the natural taste of the water while ensuring a drink rich in minerals and above all more ‘good.
- reduction of running costs: assembly and ordinary maintenance reduced over time
- does not alter the natural pH of the water.

Limona Pro and Limona Prime
Filters vending machines for hot drinks, Ocs, vending machines

LimonaIce³Maker and Limona-in
Filters for water dispensers, drinking water fountains and ice machines