Air  power source In sandblasting equipment

Compressed air is commonly used as a power source to remove surface oxides, residual salt, and welding slag after heat treatment from metal parts, welding parts, castings, and forgings; Cleaning machine addition of small burrs, tips, surface residue; Change the workpiece surface roughness Ra value; By pretreatment before spraying and electroplating on the workpiece surface, an active surface can be obtained, improving coating adhesion.

This method is used to complete parts with high precision and complex shapes that are difficult to fabricate by other processing methods.The surface treatment between processes in the machining industry, such as the renovation of old parts, requires compressed air auxiliary sandblasting equipment to complete.

The working principle of sandblasting equipment is to use compressed air to flow in the spray gun at a high rate to create negative pressure to produce the injection effect, and the abrasive in the sand separator is sucked into the spray gun by the sand tube, and then compressed air is sprayed at high speed by the nozzle over the surface of the workpiece in order to achieve the purpose of sandblasting.

In the working state, compressed air and sand are mixed and sprayed to make full use of compressed air. The flow rate of air and sand can be properly adjusted, then the ideal mixing ratio can be obtained, so that energy and sand are ideal for metal surface processing with less consumption.

What are the requirements of compressed air for sandblasting machines?

There should be a clear indication of the working pressure, nozzle to be used, and air consumption on the sand blasting machine;

The sand blasting machine should specify the type of abrasive and the size range of the abrasive particles;

Sandblasting machines should operate normally under conditions where the ambient temperature ranges from -10°C to 45°C and the relative humidity does not exceed 90%;

The rumbling sound of the sandblasting machine should not exceed 85 dB;

An air compressor's air supply should be greater than 1.25 times the maximum air consumption of the sandblasting machine;

Sandblasting machines require dry, oil-free compressed air;

Safety protection devices should be installed on the sand blasting machine;

Therefore, first of all, compressed air is required to have a certain pressure and sufficient flow. Without a certain pressure, the electromagnetic valve cannot open, and the control mechanism will not work normally. Without sufficient flow, the abrasive blasting machine cannot be sprayed onto the processed metal surface with gas, and it is difficult to produce impact strength. Secondly, the air is compressed and mixed with the lubricating oil into a gaseous mixture, which is mixed with the abrasive spray in the sandblasting machine and sandblasted to the metal surface of the workpiece, which will cause the roughness of the workpiece surface to fail to meet the quality requirements of the workpiece.

Therefore, this is one of the reason why we recommend YUKA high-efficiency cyclone water separator and remove air particles through pre-air filters for your sandblasting equipment.