Metal bellows are constructed by welding “leaflets” into a series of “convolutions”. This series of convolutions is referred to as the “Bellows Core”.

Welded metal bellow seals are mechanical parts made form specific metal sheets with stamping and welding process. In the production process, first, single-chip wave plate of convex and concave piece are formed form special metal by stamping machines. And then, a pair of convex and concave piece are welded at the inside diameter. At last, several combination of pieces are welded at the outside diameter to form a metal bellow core. Welded metal bellows mechanical seal belongs to a special mechanical seal products,which use metal bellows core as an elastic element.