... ) manufacture AC, DC, AC and DC Rolling Door Opener, design and make motors according to your request2) AC motor: 200KG—1500KG, DC motor: 300KG—600KG, AC and DC motor: 300KG—600KG3 ... ONE 20GP CONTAINER.AC&DC MOTOR INCLUDEMOTOR,CONTROL SYSTEM,BACKUP BATTERY, BRACKET SYSTEMAC&DC MOTOR OPTIONALPUSH BUTTON,LOCK BOX, INFRARED SENSOR, ALARM SYSTEM.AC&DC MOTOR LOAD CAPACITY420 ...