To get a more equable climate the greenhouses keep getting bigger and higher, resulting in longer and taller vertical roll screens. This demands that the motors need to become more powerful. To meet this demand, Huima specials developed a new series of reliable twin-wall drives. These twin-wall drives have been given special dimensions and a unique construction. With twin roller screens parallel to the gutter and the drive within the gable end, the drive will remain within the columns of the gable ends. This construction is space-saving and the screen seals against the column, sealing strips are therefore not required. If the twin roller screen gets to long for one winding tube, the motor can be installed in-between. The drive will still remain almost fully within the columns. Because of the unique construction of the drive, using a three-phase motor, the motor reductor is very light.
Furthermore, Huima Specials developed a manually operated version of this drive. These drives can be applied for the smaller screens or those which don’t require an electrical drive.
The construction of the drive allows for each screentube to be mounted directly onto the output shaft.