Strongly recommended whenever possible, the pre-filter is positioned between the vacuum and the chip-generating machine, as the first point of collection of the collected material. It is specially used to preserve the life of the filter inside the vacuum unit. It retains most of the collected material and can have a cone or cylindric shape and serves as a mechanical filter. Through a tangential entry the collected material is centrifuged into its interior until its speed gradually decreases and the material gradually falls to the bottom of the collecting unit due to the force of gravity. Such a process ensures that only a relatively low percentage of collected dust or chips manages to actually reach the real filter positioned in the upper part of the vacuum cleaner.
The cyclonic pre-filter can be combined with a: • 160 L tank • 500 L tank • 1000 L tank
The cyclonic pre-filter becomes almost mandatory for fine or very fine powders, which are very likely to clog the filter quickly, compromising the smooth operation of the entire system, but are only recommended for large, heavy chips. The main advantage of the cyclonic pre-filter is to protect the filter of the vacuum cleaner from quickly clogging, thus extending its life before replacement and significantly reducing the maintenance of the entire system.
HEPA is the acronym used for the definition “High Efficiency Particulate Air”.
It ‘a kind of filter for vacuum cleaner with a particular system of filtering with high efficiency for fluid, liquid or gas. It has the ability to trap a very high amount of particles of very small size, ability that other filters for vacuum cleaners do not have. Indeed, there are different categories of filters (L / M / H), and different categories of HEPA filters, that has made according to the material more efficient to inhale.
The HEPA filter is composed from microfiber filter sheets (generally borosilicate) assembled in multiple layers, and separated by aluminum septa. The microfiber filter sheets have the task to block the polluting solid particles (or particulate). The solid particles are very small and can be harmful to health or may affect the quality of the final product to be obtained.
HEPA filters are part of the category of the “absolute filters”, justified by the fact that these filters have a high efficiency of filterign. In particular, HEPA filters introduce an efficiency of filtering between 85% (H10) and 99.995% (H14). The filtration efficiency of particles of 0.3 µm, is regulated by the UNI EN 1822.
This accessory is a device that automatically intervenes in the case that there is a consistent increase of the temperature inside of the collection tank, emptying a mix of air and water inside the tank through a spray nozzle. In the case where the system is not automatically activated, it’s possible to activate it manually using the appropriate button.
The gate valves that enable the closure of multiple vents allow the operator to choose to work with one, two or more hoses simultaneously. These gates can be operated manually by operators, handled automatically by machines, or remotely via foot pedal.