Hamm is the trademark of road rollers and asphalt compactors manufactured by Hamm AG. Initially, the company was established by brothers Hamm back in 1878 for production of agricultural equipment. Nevertheless, by 1928 the enterprise became specialized only in rollers. Eventually, the firm became the leading innovator in its sector and has introduced some unique technologies, like oscillating vibratory roller in 1989. In 2000, the company was acquired by Wirtgen Group Gmbh and since then operates as Wirtgen’s subsidiary. Today the Hamm plant producing this machinery is situated near Munich, Germany and is considered the most modern European roller enterprise.