● Manual and motorized drive are available, end drive or center drives are available
● Maximum opening can be 4.8 meter (middle roll up), and maximum length of curtain can be 120 meter depends on different motor drive
● Single/double/middle roll up in options, fully adjustable for min winter ventilation or max summer ventilation
● Easy installation and free of maintenance, tight and neat curtain of the barn
● Can be control with thermostat, temperature sensor
● Different motor drives available, in end drive or middle drive option
● Maximum opening can be 3 meter, and maximum length of curtain can be 60 meter
● Curtain can be open from top downwards, fresh air can bring in from top of the curtain
● Can be control with thermostat, temperature sensor
● work with cable drum, universal joint, gears, pulley etc
● Manual and automatic options are available
● Maximum opening of 2.4 meter, and maximum length of curtain can be 60 meters
● End drive and middle drive options are available
● Easy installation and free of maintenance
● Wind pockets are installed at both ends