Vacuum Press Membrane - allows shaping and gluing various materials such as: wood veneer and MDF.
The membrane due to its characteristics it is able to push in any complex shape machined in the support plate.
The best material is MDF carrier that is rigid and good permeability.
Force being generated by evacuating.
From the laws of physics, it appears that it is the difference between the atmospheric pressure and the remainder of the vacuum pressure in the press.
Achieving full vacuum in the vacuum pump is not possible and usually is 150m.bar. (15% of atmospheric pressure)
Atmospheric pressure is about 1 bar (1000m.bar).
The generated force is about 8.5 tons per square meter or 0.85kg per square cm - greater emphasis physically impossible to achieve.
All pumps used in presses achieve a similar degree of vacuum, ie. 85% vacuo differences are due to the arrival time of the maximum vacuum..