New Whitepaper: Efficient and safe lubrication of small parts or: contact dosing vs. non-contact dispensing

The PDos X1 jet valve from perfecdos GmbH offers various advantages for the lubrication of small gear parts in the automotive sector - compared to the widely used contact dispensing.


There are various practical problems to be solved in the sustainable lubrication of small parts. The cause of most problems is usually inaccurate dispensing of the most diverse greases. The consequences: If too much grease is applied, it runs out of the component at higher temperatures. If, on the other hand, there is too little grease, the component is not sufficiently lubricated and has a shorter service life and/or poorer performance. Both quickly lead to additional costs due to rejects and complaints. To avoid these problems of contact dispensing, a complex and expensive process control is usually necessary.


The solution - contactless dosing

⇒ Download our new whitepaper for free: Technology Study: Efficient and safe lubrication of small parts or: contact dosing vs. non-contact dispensing

⇒ Application: Lubrication of small gearboxes in the automotive sector

The PDos X1 jet valve offers all the advantages of contactless jet technology. It dispenses all greases with the highest precision and a repeat accuracy of up to 99% (in relation to the respective dispensing quantity). Errors due to deviating grease quantities are thus excluded. Even from distances of up to 50 mm, the desired spot is precisely hit. Even component or position tolerances are no problem. The grease always lands reliably exactly where it is needed.


The dispensing valve can also be easily integrated into existing lubrication processes: The G1/8 female threaded fluid connection fits into common grease supply systems without any special adaptation. Even the usual pressure (100 bar) in central grease supply systems is no problem. 


Like all perfecdos dispensing valves, the PDos X1 jet valve operates mechanically as a "normally closed" system (NC). In the event of a failure of the supply media, leakage is thus reliably prevented. This is important when the lubrication valves are fed from a central supply. With a normally open valve, the entire machine would be filled with grease.

The jet valve offers further advantages in process control. It can be easily controlled from the system control. This makes the solution flexible with regard to the variety of assemblies to be produced.


Another advantage of the jet valve is the simple and cost-effective process monitoring via light barrier. This is not possible with contact dosing. There, an expensive optical process control must be used. The laser light barrier used by perfecdos monitors every droplet that passes the barrier - even transparent, extremely small and/or extremely fast droplets. The sensors of the light barrier are automatically cleaned so that even contamination with grease does not cause a malfunction. With this solution, product quality can be increased very efficiently. Non-lubricated parts are separated and optimally lubricated parts remain in the production process. Precise non-contact dosing with the PDos X1 jet valve thus uses less material, minimises rejects and enables simple process control.


"From a total cost of ownership perspective, fast production at 300 cycles/s and simpler machine designs are further plus points for this technology," says Julian Greiner, Marketing & Sales at perfecdos GmbH.

Lubrication of small gearboxes in the automotive sector