Martinoli's artistic research starts from the material. The use of iron and forging are essential for his artistic work. Large iron plates in his hands change shape, change and become light airy figures.
In the sculptures, which often present themselves as preparatory sketches for large-scale developments, the strength and heaviness of iron are surpassed by stylised, and often thread-like, forms that retain their lightness even in the imposing reproductions. Iron and fire are the heart of Lorenzo Martinoli's art, where the ancient coal forge, active since 1874 and the creativity of modern time come together for an all-round art.