The SVE clamping system allows the firm and instantaneous fastening of pieces of smooth and non-porous surface by vacuum. They also make it possible to hold pieces horizontally, vertically or at different angles (depending on the model). The SVE system is based on an autonomous and electrical vacuum system, which makes it possible to avoid an external compressor. It facilitates to fix the pieces outside the workshop, as it is not necessary to carry heavy and bulky compressors. It is possible to use two or more units to securely hold large pieces.