vacuum cleaner unit is a modern and technological cleaning device that has a tank which is created in its partial vacuum thus the differential pressure cause to send materials to the vacuum tank. vacuum cleaner unit with various applications is a convenient and efficient tool; it can collect a variety of hard and massive contamination, removes dust and it's also used as a material conveyor system in industrial sites. all kinds of vacuum cleaners category like domestic, commercial, semi industrial, industrial and heavy duty range have two main indexes that are called water lift (suction power) and air flow. the more water-lift causes to increase the ability of vacuum cleaner to suck up dense material from a certain distance. moreover, if the air flow increases, cleaning operation velocity will increase. the water lift and air flow in each level of categories are different and depending on the type of vacuum cleaner operation, right and proper motor and pump can be installed on the device. many of the processes of cleaning and material conveying was difficult in the past, while the diverse industrial vacuum cleaners make these action easy, they are manufactured to high standards, high quality and are made to be safe and sturdy for commercial and industrial cleaning purposes in a short time. vacuum cleaner units capabilities are both in collecting solid and liquid materials, these substances can be separated from each other if it is necessary and they are able to return the consumption production cycle. vacuum cleaner unit devices instead of similar cleaning systems or comparing with traditional methods of cleaning have numerous benefits such as collecting materials right and completely, non-return dust to the environment, removal of hazardous fines in safely way, removal of combustion particles, to keep the labors and location safe and healthy, significant increase in operation velocity, to increase productivity and efficiency, to recover lost material during making outputs.