Sturdy stainless steel construction, inside and outside the machine entirely in stainless steel, bars protected with Teflon tape, easy to replace. The upper part of the vacuum chamber is made of transparent plastic material that allows to control the cycle by the operator. Closing the lid of the vacuum machine automatically starts the programmed work program. The most efficient vacuum pumps on the market of different dimensions are installed inside the machines. Nine automatic programs can be selected and saved thanks to the electronic system; the operation is completely automatic until another program is activated. Packaging with modified atmosphere is possible, if the necessary optional configurations have been pre-installed. It is available a mobile furniture in stainless steel with shelves where you can place the bags to be used in the table machine. Portable machines are equipped with wheels with brake.