"METAL DOMES" EN CLAVIER À MEMBRANE


The tactile feeling is one of the main features in Membrane keypads design and manufacturing. Jose Crespo Ballester S.A. works different alternatives in order to offer the right tactile feeling for your Membrane Switch application.

The operating signal is given by pressing the key in the Membrane Keypad. A correct actuation force will make the operation of the Membrane Switch more comfortable and save.

One way to increase the tactile feeling when operating the Membrane Keypad is to include metal domes in the structure of layers (Polyester layers and adhesive layers). Metal domes are available in different size, actuation force and surface finish.

Actuation force available commonly varies between 280 and 400 grams. Higher values of actuation force will mean a high tactile feeling when pressing the key in the Membrane Switch.

The most regular shape for metal domes in Membrane Keypads is Circular shape. Diameters available are between 6 and 20 millimeters. Nevertheless, it is possible to include oval shaped or custom shaped metal domes. Also, the contact area in Metal domes can be also nickel plated or gold plated.

Tactile feeling can be also adjusted by modifying the Thickness or embossment in the Polyester or Polycarbonate Front Foil.

Take a look at our gallery and you will find some examples of previous projects. For further information do not hesitate contacting us. In Crespo, we will design and manufacture your Membrane Keypad with a comfortable and save for your application.

This and some other interesting topics will be developed in the future, Stay tuned!