Since MICROingranaggi mainly deals with custom projects and works on behalf of third parties, I rarely talk about our own products. However, we’ve been able to create also a small standard catalogue, and we are very proud to add new products every year.
Therefore, I’d like to introduce you to

our new linear electric actuator Ø22, available from Spring 2021.

A linear actuator moves along an axis, so it’s used in all those applications where linear movement is expected (automation, automotive, valves, military, pharmaceutical, avionic, and so on). It can be mechanical, hydraulic, pneumatic or electromechanical.

One of the strengths of our new linear actuator Ø22 is that it’s been developed starting from a solid knowledge in practical application,

an aspect that should never be underestimated. As often, it’s the market that gives the right inputs to companies.

In the range of “MICROingranaggi products” – which are completely designed, produced, and assembled internally – there was already a slightly larger linear actuator, Ø32. This was the starting point to develop the new one, after a specific request from a client. Afterwards, we decided to include it as well in our standard catalogue.

The linear actuator Ø22 is offered as standard with a coreless DC micro motor, but it can be customized with stepper, brushless or any other kind of motors supplied by the customer. The screw that provides the linear motion can be metric, trapezoidal or balls screw according to the needs and length required. Since we produce and assemble internally every MICROingranaggi product, customizations are available even for small quantities.
We are also working on a stainless-steel version to meet the needs of the food industry, and a cover to guarantee extremely high IP protection.

Thanks to the feedback of our clients that are already using the Ø32 version, we’ve introduced some improvements on the Ø22, that will be extended to its big brother too.
Every linear electric actuator is made by three groups: the electric motor, the planetary gearbox and the linear actuator assembly. Our R&D office focused on improving this last part, the linear actuator assembly, inside which are located the bearings that serve to withstand the thrust. In the new linear actuator, we have used miniaturized – but extremely solid – bearings, which allows fast speeds as well as very high thrust forces in relation to the dimension. At the same time, we have simplified the assembly procedures thanks to the introduction of new technical solutions. Consequently, we were able to contain the final cost of the actuator.

The demand around these small electromechanical actuators is growing, because in many cases they are replacing the pneumatic ones.

Reasons are many. First of all, the fact that every machinery has electric current, but not necessarily also the pneumatic one. So, when integrating a pneumatic piston, the user is forced to have pneumatic force in the machinery.
There’s no doubt that an electric actuator has a higher prize then a pneumatic one, but it’s easier to amortize, thanks to the absence of maintenance and the low energy costs. It is also easier to program and control the speed and the positioning, making it more versatile in applications that do not only require an ON/OFF.