Magne Brakes

Magne Brakes

Engineering Specifications / Ordering Information



































































































































































































































































































Inertia (WK2) Rotating
Member (lb.-ft.2) x 102

Coil Data
(Input Voltages 90VDC)
Rated
Torque
(lb.-ft.)
Model Mounting Type of
Cooling
Heat
Dissipation
at 1800 RPM
(Watts)
Max
Oper.
Speed
(RPM)
Non-Excited
Drag Torque
(lb.-ft.)
Outer Inner Wgt.
Approx.
(lbs.)
Current
Amperes
Resistance
Ohms @ 20C
5 5MB90S-10 Shaft Convection 100 4000 0.15 - 1.1 7 0.15 460
5 5MBA90S-10 Shaft Forced Air 400 4000 0.15 - 1.1 15 0.15 460
10 10MB90B-20 Base Convection 500 3600 0.15 4.0 - 26 0.25 273
10 10MBA90B-20 Base Forced Air 785 3600 0.15 4.0 - 33 0.25 273
10 10MBW90B20 Base Water 2500 3600 0.15 4.0 - 26 0.25 273
25 25MB90S Shaft Convection 140 4000 0.40 - 7.0 17 0.48 142
25 25MB90C C-Face Convection 300 3600 0.50 - 4.5 21 0.26 334
25 25MBA90S Shaft Forced Air 500 3600 0.40 - 7.0 25 0.48 142
25 25MBA90C C-Face Forced Air 750 3600 0.50 - 4.5 29 0.26 334
50 50MB90S Shaft Convection 200 3500 0.70 - 40.0 48 0.30 230
50 50MB90B-20 Base Convection 1050 3600 0.40 24.0 - 57 0.53 127
50 50MBA90S Shaft Forced Air 1000 3500 0.70 - 40.0 55 0.30 230
50 50MBA90B-20 Base Forced Air 1350 3600 0.40 24.0 - 67 0.53 127
50 50MBW90B-20 Base Water 3000 3600 0.40 24.0 - 57 0.53 127
75 75MB90S Shaft Convection 600 2600 2.0 - 65.0 60 0.99 70
75 75MBA90S Shaft Forced Air 1100 2600 2.0 - 65.0 70 0.99 70
100 100MB90B-20 Base Convection 1100 3600 1.0 68.0 - 98 1.0 68
100 100MBA90B-20 Base Forced Air 1700 3600 1.0 68.0 - 110 1.0 68
100 100MBW90B-20 Base Water 4500 3600 1.0 68.0 - 98 1.0 68

The Magnebrake® provides complete control. Complete brake control means managed and regulated braking action to exploit the brake's varied capabilities for superior power transmission. Since Magnebrake® action does not involve unstable friction, it provides many new quality advantages.

Continuous Slip: Magnetic force, not rubbing, creates braking torque, so the Magnebrake® can slip continuously without wear or loss of holding torque.

Uniform Reversing: Magnebrake® torque output is independent of slip speed, so that the torque setting remains constant as the Magnebrake® goes from maximum rpm forward to maximum rpm in reverse. Unlike friction brakes, the Magnebrake® never chatters or vibrates when reversing.

Uniform Intermittent Motion: Under Magnebrake® control, materials subjected to intermittent motions through reciprocating drives, indexing, ratchet or cam action, won't stretch or break. Magnebrakes® constant torque and holding force eliminate the uneven "stick-slip" phenomenon inherent in friction brakes.

Tension Control: A Magnebrake® makes unwind and payoff tension control simple and straightforward because torque output is directly proportional to current input. Open loop tension systems like roll diameter followers, or closed loop tension systems can utilize a Magnebrake® with either digital or analog electronic control techniques.

Long Life: Magnetic attraction and rugged construction make the Magnebrake® durable. With no rubbing parts subject to wear, the Magnebrake® has a virtually unlimited life expectancy.

Temperature Stability: The Magnebrake® eliminates brake fade. Operating at a fixed current, it shows no significant torque variation even over temperature extremes.

Precise Loading: Input current determines torque characteristics. Ramp, taper, trigonometric, exponential and cyclic load functions are simple to obtain.

Clean: The Magnebrake® will not contaminate its surroundings with wear products, making it perfect for processing items like surgical dressings, photographic film, or food stuffs.

Smooth: The Magnebrake® doesn't subject your material or machinery to jerks, chatter or shake. It allows delicate process adjustment with infinite control.

Quiet: Unlike conventional brakes, the noiseless Magnebrake® is welcome in quiet areas like offices, labs and medical facilities. With no sliding or slapping parts, the Magnebrake® is a valuable tool in the machine designer's portfolio.

Remote Control: Remote operation is simple with two-wire control and currents usually less than 500ma. The low power transfer allows control placement at a convenient operating point.