The AT5 720 1277ZA is a type of belt manufactured by Optibelt, a leading German manufacturer of power transmission belts. This type of belt is a jaw profile belt, which is particularly suitable for high belt speeds, precise positioning, and low belt noise. It is constructed from thermoplastic polyurethane, which makes it resistant to oils, chemicals, and ageing. It is a heavy-duty belt, with a length of 720 mm, a width of 1277 mm, and a pitch length of 19 mm. It has a break strength of 125 kN, a minimum pulley diameter of 65 mm, and a maximum pulley diameter of 170 mm. This belt is ideal for use in industrial applications where high speed, precise positioning, and low belt noise are desired.