... . 4.Overheat protion. ITEM NO.Rolling Door Motor with 1500kg Maximum Lifting Force and 800W Rated PowerMAIN TECHNICALPARAMENTTypePower ... , operation, low noise, small shaking.6.The brake organizations adopt hoof form production device, friction facings formulations ... adopts advanced friction materials, friction with large area, the brake positioning accuracy error is less than 10 ...