Our standard bell is made using the spinning process that is common today. In this process, a large circular sheet metal disc is pressed with a tool against the rotating bell mould on a lathe until the sheet metal lies evenly against it. During this process the metal must be annealed again and again so that it changes form. Finally, the rim is flanged and a brass wire is inserted for reinforcement. The initial thickness of the sheet metal disc is 0.6mm.
In addition to the standard bell, we offer several options:
Hard Bell:
The blank of this bell is manufactured in the same way as the standard bell. This is followed by an additional operation in which the surface of the bell is pressed twice on the spinning mould under high pressure with the help of a steel ball. This selective pressure changes the material structure and the bell emerges with a higher tension. The effect is similar to that of the hand-hammered bell throat. The hard bell vibrates faster, has somewhat more sheen and better projection.
Heavy Bell:
This bell is also made using the standard process, but is made from a stronger base material (sheet brass 0.7mm). It has more mass and stabilises the sound. At the same time, it is also 'heavier' to play.
Light Bell:
This bell is made from a thinner brass sheet than the standard bell. We offer it in 0.5mm or 0.55mm starting material. The bell offers less resistance, but the sound begins to blare much faster.
Soldered Bell:
This bell is made from a sheet metal blank that is soldered together (similar to making a bell throat). After soldering, the seam is forged and the soldered blank is hammered into shape. During this process, the bell is repeatedly annealed to allow it to be formed. The final step, as with the other bells, takes place on the spinning lathe. A soldered seam can be seen on this bell on close inspection. We offer it in two different wall thicknesses (0.45mm and 0.5mm starting material), whereby the thinner 0.45mm variant is more common. The soldered bell changes the response of the instrument and the sound is somewhat less robust. Because of the original cut, this bell has a more even thickness of sheet metal across the entire flare. As a consequence, even the lighter soldered bell is similar in weight to the standard bell.