Comparison of Magne vs Standard Industrial Clutches and Brakes
0-10 Rating Scale
| CLUTCH OR BRAKE CHARACTERSITICS | MAGNECLUTCH MAGNEBRAKE |
FRICTION DISC MAGNETICALLY ACTUATED |
FRICTION DISC MACHANICALLY ACTUATED |
FRICTION DISC OR TUBE AIR ACTUATED |
HYDRAULIC | EDDY CURRENT |
MECHANICAL PARTICLE |
| Ability to produce torque art zero slip | 10 | 10 | 10 | 10 | 0 | 0 | 10 |
| Normal running efficiency (mechanical) | 10 | 10 | 10 | 10 | 8 | 8 | 10 |
| Torque adjustability while running | 10 | 8 | 7 | 5 | 0 | 9 | 0 |
| Torque repeatability | 10 | 6 | 5 | 7 | 7 | 9 | 8 |
| Torque stability over variable speed range | Independent of speed 10 |
Torque reduces as speed increases 7 |
Torque reduces as speed increases 7 |
Torque reduces as speed increases 7 |
Non-linear 5 |
Non-linear 5 |
Torque increaes as the square of the speed 7 |
| Torque limiting ability | 10 | 6) | 6 | 7 | 4 | 5 | 7 |
| Ability to block shock transfer to load or prime mover | 10 | 5 | 5 | 6 | 8 | 10 | 6 |
| Acceleration Control | 10 | 6 | 6 | 6 | 5 | 9 | 5 |
| Torque stability over time | 9 | 7 | 7 | 7 | 9 | 9 | 8 |
| Ability to utilize entire torque range | 9 | 7 | 7 | 7 | 7 | 9 | 9 |
| Torque range available commercially | 9 | 8 | 9 | 9 | 9 | 10 | 2 |
| High speed response capability | 9 | 8 | 8 | 6 | 6 | 9 | 2 |
| Durability/Life expectancy | 10 | 7 | 7 | 7 | 8 | 9 | 9 |
| Ease of field repair | 9 | 9 | 7 | 6 | 5 | 9 | 9 |
| Freedom from periodic mainenance | 9 | 5 | 5 | 5 | 7 | 9 | 5 |
| Drag torque | 4 | 9 | 9 | 9 | 4 | 9 | 3 |
| Heat dissipation characteristics | 4 | 4 | 3 | 5 | 8 | 5 | 5 |
| Ambient temperature capability | 4 | 4 | 4 | 2 | 1 | 1 | 1 |
| Avoidance of grab, chatter or sticking on start or stop | 10 | 5 | 5 | 8 | 8 | 10 | 8 |
| Resistance to wear under normal use | 5 | 2 | 2 | 2 | 7 | 8 | 0 |
| Volume for unit torque | 8 | 2 | 1 | 3 | 7 | 8 | 4 |
| Weight for unit torque | 7 | 2 | 1 | 3 | 5 | 7 | 5 |
| Remote control capability | 10 | 10 | 3 | 10 | 0 | 10 | 0 |
| Auxillary equipment needed | 2 | 2 | 3 | 4 | 4 | 2 | 0 |
| Control power needed | 1 | 1 | 2 | 2 | 0 | 3 | 0 |
| Approximate selliing price | 5 | 5 | 4 | 5 | 5 | 8 | 5 |
| Type of actuation | Electrical (DC) | Electrical (DC) | Mechanical | Air | Hydraulic Fluid | Electrical (DC) | Centrifugal |