The air filter is the most important part of the three filters that protect the machine, because the quality of the oil and fuel is controllable, the quality of the air is the most uncontrollable, and the impurities in the air are the types that need to be properly filtered.
A good air filter must have several dimensions to check:
1. Intensity. There is no accurate industry reference standard for the air filter industry, and the comprehensive evaluation factors are too many and too complex, which requires dismantling experiments and is not suitable for understanding. So I think the strength of the air filter manufacturer is more important. Poor manufacturers will mislabel some technical parameters. For example, cheap air filters are everywhere. Do we have to watch it after we buy it? So don't look for those bad manufacturers to find cheap, basically you can't take advantage.
2, from the visual point of view, the high quality air filter has the following characteristics:
1, the folding frequency is uniform, no obvious deformation, high folding height, large dust capacity;
2, smooth filter paper, no obvious odor;
3, the rubber cover air filter in the high-quality air filter, the rubber cover is soft and hard, the installation is good, not easy to deformation, to prevent dust from entering the gap;
4. The iron cover air filter in the high-quality air filter has high processing accuracy and is installed in place.
3. From the perspective of technology and production:
1, filter paper is the key component of the filter element. First of all, we must choose the right filter paper: for example, the air filter paper of the oil injection screw machine, and the filter paper of international brands such as MANN and DONALDSON has a permeability of about 110-160. Relatively speaking, the pressure difference is reduced and it is not easy to fold, but the filtration efficiency cannot be guaranteed.
2, choose the appropriate polyurethane foam material: good end-face flexibility, good resilience. With the change of temperature, the stability is still very good, the compression is not large, and the size is precisely matched with the air filter assembly to prevent short circuit into the air.
3. The origami process of air filter is one of the key links in the production of air filter, and there is a regular interval between each layer:
Prevent the filter paper from sticking - improve the filter paper dust capacity
The viscosity of filter paper - in a high humidity environment, the dust capacity of filter paper will be greatly reduced;
Test results - Increased service life: 50%
It is understandable that users buy and replace equipment consumables to save maintenance costs, but not everyone can accurately judge product quality, which also provides opportunities for inferior products.
Through the above points to quickly identify and select high-quality air filters, to ensure that the air into the air compressor is sufficient and clean, to avoid shortening the maintenance cycle, machine damage and other losses, greatly reducing the overall operating costs.