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

Following the news from Sames Kremlin, we have seen the new range of manual spray guns. The guns are called FPro and incorporate the latest patented innovations from the French spray gun manufacturer. I've seen statements from users, even car painters. They are all very pleased with the performance of the new guns, 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 so innovative about them? The range joins the distributor Sames Kremlin in Romania gave us the opportunity to find out.

Injector and vortex - the stages introduced by Sames Kremlin on the liquid path before it reaches the paint gun nozzle

To see what the change is for the new Sames Kremlin manual spray pistols let's first see what happens inside a regular pistol. The spray material 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 head of the gun where it is mixed with air and thus transferred to the wood or metal substrate forming the film.

Sames Kremlin innovations intervene on this route by adding 2 more steps that transform the jet so as to achieve better material transfer and increased quality of the varnish film. This is done with the help ofinjector if tovortex. 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-atomised. This results in flow fixation and a controlled drop in jet pressure. We'll see the advantages of this modification in a moment.

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

These are technical improvements to the gun. Let's see how they look in the final spray result.

How users benefit from these innovations

I was saying that the injector fixes the flow and lowers the pressure under control. As a result:

• the particles stay longer in the atomisation zone and the air has more time to turn 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 is increased;
• the gun valve can be opened further, the flow rate remains the same. This will reduce wear and tear on the nozzle and rod and increase their lifetime;
• pressure increases while maintaining the same flow rate. The result - increased lifetime 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 homogenisation. This will be seen in the spotless spray, without those spots that are sometimes seen on the finished surface as dandelion-like globes. Another consequence is that the material can mix with a larger amount of air influencing the material jet. If you compare the spot left by spraying the material at a fixed point with an ordinary gun and an Fpro, you will see in the first case an oval mark and in the second case the spot is almost rectangular and larger in size.

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

What guns are in the Fpro range

The 3 FPro manual spray guns 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 guns for conventional spraying) and can be used in small workshops as well as in busy factories. They're easy to use, with easy trigger operation. Access to the 2 new components - the injector and the vortex - is easy and they can be cleaned normally, just 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. You can leave your comments or questions in the space below.