Galvanized case and turbine.
Scroll with frame to achieve a greater stiffness (SR half frame, R full frame).
Shaft with incorporated pins. Bearing prepared to work between -30ºC and 80ºC.
Possibility to have double impeller and triple impeller.
It is built in sizes from 7/7 up to 30/28.

These are the following characteristics when the motor is mounted on the back:
B3, IE1 or IE2 motors depending on the norm in force, F class, IP 55.
Pulleys in two pieces taper type (moyu + crown) easily removable, SPZ according to the DIN 7753, DIN 2215, BS 3780, ISO 4181 norms.
Easy to drive tightening base. Under request protection to the transmission if the fan is not protected by a certified CE.
Possibility to build double and triple impellers.

Technical Data Sheet SR

Technical Data Sheet R