Latest generation free running impeller with 5 backwards-curved blades in frame sizes 710 to 1,120 mm. Impeller made of sheet steel with surface protection provided by powder coating. Version with hub (taper lock or fixed hub) and inlet nozzle with measurement device for volume flow measurement. Volume flow rates up to around 80,000 m³/h free blowing, max. static pressure increase up to 2,100 Pa possible. GR modules for compact installation in customer applications/devices for vertical air feed. ER built-in fans e.g. for vibration-damped use in central air-conditioning units with horizontal air feed.
Properties & special features:
Impeller with bionic 3D fluting thanks to innovative design in the form of a specially wound blade geometry. The tubercle on the blade leading edge, which is based on a humpback whale, and the V-shaped serrated rear edge allow a wide characteristic map range. The highest efficiencies are achieved in conjunction with an opening rotating diffusor.
In combination with the innovatively rippled blade surface, diffuse sound radiation takes place, ensuring the lowest possible sound level.
Internal rotor motors:
- ■ PMblue EC technology: Permanent solenoid energised motor with attached controller
- ■ AMblue AC technology: Asynchronous motor with attached controller
- ■ AC technology