The Puma 15 ATEX Z20/Z21 is an industrial vacuum cleaner of the heavy series, for working in harsh conditions and with heavy materials. The extractor has a third-party certification (TUV) which certifies the internal area as Z20. It mounts a dual-stage side channel blower in parallel/series with high airflow/depression. The safety vacuum breaker valve is installed as standard. The tangential inlet together with the robust cyclone welded inside the filtration chamber guarantees excellent efficiency even with the finest powders. The material, entering tangentially, meets the cyclone and due to the friction generated, it loses speed falling directly into the container. This system is very useful for protecting the filter from the sucked material. The filter is polyester, M class certified, with a filtration efficiency of 1 µ. The filter can be customized according to the specific application. The unit is equipped, as standard, with a manual filter cleaning system which, thanks to a practical lever on the upper part of the industrial vacuum, with which the filter can be shaken easily and effectively. On request, it is possible to configure the vacuum cleaner with an automatic counter-current filter cleaning system. A practical and sturdy 175 Lt container, equipped with a release system, allows you to collect the vacuumed material and dispose of it with ease. To facilitate the handling of the container there are 4 pivoting wheels mounted on reinforced supports in order to facilitate handling even when there are several kg of material inside. On request, a kit is available that allows the handling and unloading of the container with the forklift.