Putty spray machine has a lot of sizes, putty is thicker material, so need to use a large flow of tip,  so spray putty generally need to choose what size of tip?

If the tip size is not chosen correctly, the spray gun is easy to block, in the process of operation, the gun is very troublesome, will affect the work progress, so choose the right tip, great help to the work, can make the spraying work smoothly.

First of all, we look at the tip model composition, generally composed of three digits, the first number represents the width, the second three Numbers represent the flow rate, the tips small eye size, generally expressed in inches.

For example, the commonly used putty tip size 543, 5 is wide, represents the spraying Angle of 50 degrees, and 43 represents the aperture diameter, that is, the size of 0.043 inches.

Other putty tips are: 673 671 665 655 555 549 545 541 539. If you need other widths, just change the first number.

Because the project requirements are different, some places may have a small width, some places have a large width.

But is it enough just to look at these models?That is not good, to see the putty spray machine is the maximum number of nozzles, whether with the moving tip of this size.

For example, you bought a flow of 8L machine, the largest tip, is 0.039, then choose a 555 nozzle to spray putty, there is no doubt that there will be problems, machine pressure, spray gun spray out, atomization does not open, that is because the nozzle model is wrong.

But if you choose a 20 l sprayer, the flow of the nozzle can be brought to the largest 0.071, then use a 655-665 of the nozzle is no pressure, of course, if you gush to other materials, do not need to the size of the nozzle, with a 539-535 models of the nozzle, is no problem, on the other hand, with a small flow of machines with big nozzle, wouldn't work.

So to sum up is, calf pull car can not, big cow pull car is very easy.

In addition, about the durability of the nozzle, we can see that the middle is black, which is made of tungsten steel. The nozzle with good imported materials is of good material, so it is fine and not easy to damage, while the cheap nozzle is not good atomization effect, and easy to damage.