Existing motor sections

Stator Ø 72 mm, rotor Ø 35 mm
Useful length of stator(mm) 20 30 40 60  
Total length of stator (mm) 40 50 60 80  
Max rpm1) 8 000 8 000 8 000 8 000  
Max momentary torque (Nm)2) 0.9 1.35 1.8 2.7  
Max continous torque (Nm)3) 0.4 0.6 0.8 1.2  
Max Power (W)5) 335 500 670 1 000  


Stator Ø 80 mm, rotor Ø 40 mm
Useful length of stator(mm) 30 60 90 120  
Total length of stator (mm) 80 110 140 170  
Max rpm1) 12 000 12 000 12 000 12 000  
Max momentary torque (Nm)2) 1.5 3.0 4.5 6.0  
Max continous torque (Nm) 3) 0.4 0.8 1.2 1.6  
Max Power (W)5) 500 1 000 1 500 2 000  


Stator Ø 120 mm, rotor Ø 80 mm
Useful length of stator(mm) 30 60 90 120 150
Total length of stator (mm) 80 110 140 170 200
Max rpm1) 5 000 5 000 5 000 5 000 5 000
Max momentary torque (Nm)4) 14 28 42 56 70
Max continous torque (Nm)3) 3.0 6.0 9.0 12.0 15.0
Max Power (W)5) 1570 3 150 4 700 6 300 7 900

custom made motors   Chart for different efficiency curves related to asynchronous motors at rated output and steady number of revolutions according EU/CEMEP. IRO’s efficient and intelligent permanent magnet motors are normally above 90% ”during normal load”.



1) Max number of revolutions can be increased if the demand for torque is reduced.
2) Sensorless operation. Higher torque can be achieved by use of an encoder.
3) Higher torque can be achieved with improved cooling.
4) By the help of an encoder.
5) At max revolutions and max continuos torque according to the above.

 

 
 

Three generations of stators for the same type of yarn feeder. To the left, a traditional asynchronous - weight 1932 g. In the middle, the first type of permanent magnet stator used, weight 924 g. To the right the latest permanent magnet stator used - weight 435 g. Note that the stator to the right is having the same performance as the one to the left.