| Model | F Type Electromagnetic Feeders | RFH Type Rubber Spring Feeders | 
|---|---|---|
| Drive mechanism | Resonance type consisting of electromagnetic and leaf spring. | Resonance type consisting of 3-phase induction motor, rubber spring and unbalanced weight. | 
| Power supply | Commercial single phase | Commercial 3-phase | 
| Suitable materials for handing | Wide range of materials from fine to massive materials. | Pulverulent, granular and massive materials. | 
| Max. stroke (mm) | 1.8 | 7 | 
| Vibration per min. (50/60Hz) | 3000/3600 | 1000∼1150 | 
| Max. feeding capacity (T/Hr) (*1)  | 
                  	  1250 | 5000 | 
| Adjustment of feeding capacity (Electrical) | 30∼100%(*2) | 40∼100% | 
| Adjustment of feeding capacity (Mechanical) | Opening ratio of gate Angle of inclination  | 
                  	  Opening ratio of gate Angle of inclination Unbalanced weight  | 
               	  
| Starting | Instantaneous | Easy | 
| Stopping | Instantaneous | Possible Instantaneously | 
| Applicability to weighing machine | Best | Better | 
| Maintenance | Easy | Easy | 


