Parts & Accessories The first is from Hercule company with a power of 380 Newtons, designed for doors with a width of 3.5 meters. The second is from Hercule company with a power of 550 Newtons, designed for doors with a width of 4.5 meters. High efficiency, power, and quality, with a one-year warranty. To order, contact ( Phone number appears when clicking the contact button )