What are the differences between IP68 and anti salt spray for cooling fans-Capital-Cooling fan manufacturer

IP68: The IP (Ingress Protection) protection level consists of two digits, the first digit representing the dustproof level and the second digit representing the waterproof level. IP68 is the highest level of dust and water resistance, where "6" indicates complete prevention of foreign intrusion, and "8" indicates that it can be immersed in water for a long time under a certain pressure, usually suitable for environments that are submerged in water for a long time. During testing, the fan will be placed in specific testing equipment to simulate different water pressures and soaking times to test its sealing performance.

Salt spray resistance: Salt spray resistance refers to the ability of a fan to resist salt spray corrosion. Salt spray test is to place a fan in an atomization environment containing sodium chloride solution, atomize salt water into small particles through specific equipment, spray the fan at a certain concentration and time, simulate the use of the fan in coastal or other high salinity environments, and test its corrosion resistance.

Protective purpose

IP68： The main purpose is to prevent dust from entering the interior of the fan, avoid dust from causing wear and short circuits to the motor, blades, and other components of the fan, and ensure that the fan can work normally in humid or underwater environments, protecting the internal electronic components from water erosion.

Salt spray prevention: It is to prevent the metal parts of the fan from corroding in a salt spray environment. The chloride ions in salt spray have strong corrosiveness, gradually damaging the protective film on the metal surface, causing rusting and corrosion of the metal, thereby affecting the structural strength and electrical performance of the fan, and reducing the service life of the fan.

application environment

IP68： Suitable for some harsh outdoor environments or special industrial environments, such as underwater equipment, high humidity mines, outdoor high-voltage electrical equipment, etc., where there is a large amount of water or dust, requiring high dust and waterproof performance of the equipment.

Salt spray prevention: mainly suitable for coastal areas, salt chemical plants, offshore platforms and other environments with high salt spray concentration. In these places, salt spray corrosion of equipment is a serious problem, and equipment needs to have good salt spray prevention performance to ensure its reliability and stability.

Implementation method

IP68： Usually achieved through the use of sealing structures, such as sealing rubber rings, gaskets, and other materials, to seal the housing, motor, junction box, and other parts of the fan to prevent dust and water from entering. At the same time, special design and treatment will be carried out on the fan shaft, cable interface and other parts that are prone to water ingress to ensure a high level of dust and water resistance.

Salt spray prevention: It is generally achieved by anti-corrosion treatment of the metal parts of the fan, such as electroplating, spraying anti-corrosion paint, and using corrosion-resistant materials such as stainless steel. These treatment methods can form a protective film on the metal surface, preventing chloride ions in salt spray from coming into contact with the metal, thus achieving the purpose of corrosion prevention. In addition, in the design of the fan, drainage and ventilation will also be considered to prevent salt spray from accumulating on the surface of the fan.

Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.

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