Hemming represents the most severe case of 0° bending. Therefore it is performed in two stages:

• prehemming, or acute prebending on 26° to 35°
• final hemming (folding the edge of sheet metal back upon itself). The final hemming operation requires great bending force.

• the upper stage dies are standard with AMANIT^® to minimize the typical hemming scratches and galling
• the upper stage dies are removable and can be replaced at calculable costs

• all lower stage parts are made from high quality steel composed specifically for bending purposes with superior tensile strength (min 1450 N/mm²) and best load-bearing capacity. A high degree of accurate process repeatability is possible even for high tonnage hemming operations.