Which suction motor to choose?
We offer sandblasters with single and three-phase power. It is more about feeding the suction motor.
Suction motor is nothing but a vacuum pump. In the case of dustless blasters, especially the large ones, it is quite a large vacuum cleaner that pulls the abrasive and dust into a closed system where they are separated.
Single-phase sandblasters are equipped with two motors of 1200W each, while three-phase sandblasters have one 2.2KW motor – Vortex air pump, turbine, vacuum pump. The 400V solution is a bit more expensive but it pays off in the long run because these motors are maintenance-free and long-lasting, they work without problems for at least 20 years. Longevity is due to the fact that the sucked air with dust in the motor does not come into contact with the windings, bearings and other elements that may wear out under the influence of dust. 240V vacuum cleaners do the job the same as 400V vacuum cleaners but are a bit louder and require more maintenance. For example, you have to pay more attention to the cleanliness of the air filter. They will probably need to be replaced 3-4 times within these 20 years.
When choosing which power supply to choose, several factors must be taken into account: how much money we want to spend, how big is our production and noise.
400V machines are about ? 1000 more expensive and for some customers it is a lot of money. We understand it perfectly, that’s why we produce 2 types.
If, for example, we produce 100-150 headstones per year, single-phase motors will last for about 6-10 years if we take care of air filters. It’s a great result for me. However, for large productions, I personally encourage everyone to buy a 3-phase unit.