Advantages of Sames Kremlin's FPro technology for manual spray guns

Following the news from Sames Kremlin, we saw the new range of manual paint spray guns. The guns are called FPro and incorporate the latest patented innovations from the French spray gun manufacturer. I have seen statements from users, even car painters. They are all very enthusiastic about the new gun's performance, and the Nissan factory in the UK has decided to use them to paint cars produced there. What's so special about these guns and what's the innovation? The addition of the range to the distributor Sames Kremlin in Romania gave us the opportunity to find out.

Injector and vortex - the steps introduced by Sames Kremlin on the liquid's path before it reaches the nozzle of the spray gun

To see what's different about the new Sames Kremlin manual spray guns, let's first see what happens inside a regular gun. The material to be sprayed arrives in the nozzle of the gun with a certain pressure thanks to the pump with which it is pushed or by free fall or absorption in the case of conventional guns. In the nozzle it is transformed into very fine particles. It then reaches the gun head where it is mixed with air and thus transferred to the wood or metal substrate forming the film.

Sames Kremlin's innovations intervene on this route by adding 2 more steps that transform the jet to achieve better material transfer and increased varnish film quality. This is done with injector if to vortex. Both are patented Sames Kremlin innovations.

The two components are placed before the nozzle, first the injector and then the vortex. The material reaches the injector where it is pre-atomized. This results in flow fixation and a controlled decrease in jet pressure. We will see the advantages of this modification in a moment.

The pre-atomized fluid then arrives in the vortex where it undergoes a rotational motion. As a result of this motion the particles end up moving in different directions as opposed to the classical system where they move in the same direction. The particles then continue on their way to the nozzle, just as in the classical system, where they are transformed into even smaller ones. Then, in the nozzle head, they mix with the air which gives them the force needed to reach the object to be finished.

These are technically the improvements to the pistol. Let's see how they show up in the end result of spraying.

How users benefit from these innovations

I was saying that the injector sets the flow rate and decreases the controlled pressure. As a result:

• The particles stay longer in the atomization zone and the air has more time to transform them into even smaller particles. This results in reduced air consumption and increased material transfer efficiency on the plate. In addition, the quality and smoothness of the finish increases;
• the gun valve can be opened more, the flow rate remains the same. This will reduce wear on the nozzle and the piston rod and increase their service life;
• increase pressure while maintaining the same flow rate. The result - increased life of pressure regulators and pumps.

The movement of the particles in all directions due to the vortex causes them to fill all the free spaces resulting in high homogenization. This will be seen in the spot free spraying, without those spots that you sometimes see on the finished surface like dandelion globes. Another consequence is that the material can mix with a larger amount of air influencing the material spray. If you compare the spot left by spraying the material at a fixed point with an ordinary spray gun and an Fpro, you will see in the first case an oval trace and in the second case the spot is almost rectangular and larger in size.

These advantages are not always easy to imagine. So the best solution is to contact Falk Consulting to see the new guns. At the end of the article is a statement from a painter at the Nissan car plant in the UK. But the best way to see for yourself is to see for yourself how it works.

What pistols are in the Fpro range

The 3 FPro manual paint spray guns that you can also find at Falk Consulting are:

• FPro Airspray - for applying medium viscosity materials
• FPro WBE - for highly abrasive products
• FPro Lock P - gun with preset adjustments

The guns are very light (the lightest conventional spray guns) and can be used in small workshops as well as in busy factories. They are easy to use, the trigger is very easy to operate. Access to the 2 new components - the injector and the vortex - is easy and they can be cleaned as normal, like the rest of the gun.

Guns can be used for conventional, HVLP or LVLP spraying.

I hope you find the new information interesting. You can share it if you think it might be useful to others. Comments or questions can be left below in the dedicated space.