EM50n is a further development of the well-recognized and proven EM50 and is the ideal exhaust fan whenever extra high airflow capacity is required. The unique propeller design is self-cleaning and allows the highest efficiency to be reached, features which characterize the high quality and excellent performance E-line product segment.

The square fan housing and air conveyor (venturi) are made of a strong galvanised sheet-steel. The 6-blade propeller is statically and dynamically balanced for low noise and low vibration. The propeller is available in stainless steel, galvanised steel and precoated galvanised steel. The v-belt pulley attached to the propeller is made of die-cast aluminium, with reinforced ribs which will increase strength.

To improve aerodynamic efficiency, the fan has been developed in Munters R&D lab. The test chamber has been built according to ANSI/AMCA 210-85 Figure 15 specifications. Construction details and air tightness have been verified by personnel of the BESS Lab at the Agricultural Engineering Department, University of Illinois – USA. All declared values in this leaflet are measured and certified by BESS Lab (test #02333 and #02332).

BENEFITS

Propeller

The propeller is attached to a large v-belt pulley, featuring a new and improved design, in which is embedded a double ball bearing protected against water. The belt transmission ensures low propeller rpm, which in turn entails high efficiency and low energy consumption as well as low noise.

Shutter

The shutter is made of galvanised steel for all models, which is stronger than aluminium and plastic. The fan shutter is tightly closed when the fan is not working, preventing any air leakage through the fan. The patented centrifugal system consisting of rotating weights, which are placed over the system arms, hinders the shutter from being closed by air pressure. This keeps the efficiency of the fan at a peak at all times by maintaining the shutter fully and firmly opened. The shutter does not have to be cleaned regularly as dust does not affect its opening and closing movement. All the plastic parts are made of black acetalic plastic with UV protection. The motor slide has been given a special design which will reduce stress on the motor bearings and the new high efficiency electric motor results in a longer life time along with energy savings. A special plastic support fixes the mesh, thereby eliminating any vibrations.