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Abgeglichene
Hysteresebremsen (MHB) |
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 Magtrol
hat ein System entwickelt, welches garantiert, dass jede Bremse
eines bestimmten Typs und Drehmoment/Strom-Arbeitspunkts mit
jeder anderen Bremse desselben Typs, ungeachtet der Material-
und Herstellungstoleranzen, abgeglichen werden kann.
Der Abgleich
jeder Bremse im gewählten Arbeitspunkt erfolgt innerhalb einer
Toleranz von ±1%. Die maximale Drehmomentabweichung von Bremse
zu Bremse auf der gesamten Drehmoment/Stromkurve (von Drehmoment
0 bis zum ausgewählten, abgeglichenen Arbeitspunkt) übersteigt
nicht ±4% des gewählten, abgeglichenen Drehmomentwerts. So abgeglichen
und vorausgesetzt, dass alle Bremsen im Abgleichspunkt gleich
erregt werden, kann die Zugkraft eines Systems mit einer grossen
Anzahl von Zugkraftregulierungen innerhalb eines Toleranzbereichs
von ±1% gehalten werden. Der gewählte Arbeitspunkt kann frei
zwischen 50 und 100% des Nenndrehmoments gewählt werden. Dadurch
können Bremsen für spezifi sche Anwendungen optimiert werden. Ohne andere Spezifikationen sind alle Bremsen auf 100 U/min abgeglichen. |
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| Typical Brakes vs. Matched Brakes |
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| Matched Brakes |
| All single Magtrol Hysteresis Brakes can be matched.
When ordering, replace the HB in the Hysteresis Brake model
number with MHB. For Large Bore Brakes, LB is replaced with
MLB. |
| EXAMPLE: |
Standard |
Matched |
| HB-140-2 |
MHB-140-2 |
| LB-250M-2 |
MLB-250M-2 |
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| Specifications - English |
| For complete technical specifications and a general dimension drawing, download the data sheet.
For detailed dimension drawings… |
 |
|
Click on the  icon in the table below.
A PDF document will open in a new window.
(Adobe Acrobat Reader 7.0, or later, is required.) |
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NOTE:
Brakes will be matched at rated torque unless lower
match point
(to 50% of rated) is requested.
Unless otherwise specified, all brakes are matched at 100 rpm. |
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| Model |
Minimum Torque
at Rated Current |
Rated
Current |
Maximum
Speed |
Kinetic Power* |
View
Drawing |
| 5 Minutes |
Continuous |
| oz·in |
mA |
rpm |
W |
W |
PDF |
| MHB-2.5 |
2.5 |
98 |
20,000 |
20 |
7 |
see data sheet |
| MHB-10.5 |
11.0 |
201 |
20,000 |
60 |
15 |
see data sheet |
| MHB-38 |
38.0 |
250 |
15,000 |
90 |
25 |
|
| MHB-50 |
50.0 |
253 |
15,000 |
90 |
23 |
|
| MHB-140 |
140.0 |
253 |
12,000 |
300 |
75 |
|
| MHB-250 |
250.0 |
270 |
10,000 |
450 |
110 |
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| MHB-450 |
450.0 |
442 |
8,000 |
670 |
160 |
|
| MHB-750 |
750.0 |
383 |
7,000 |
1,000 |
200 |
|
| MHB-1750 |
1,750.0 |
500 |
6,000 |
1,200 |
350 |
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| **Standard coil voltage is 24 VDC. 90 volt and non-standard coil voltages are available. 12 VDC
coils are available on MHB-2.5 through MHB-750 models. |
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This icon also indicates that a 3D Solid Model is available for this unit.
Contact Magtrol Customer Service. |
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| Back to top |
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| Specifications - Metric |
| For complete technical specifications and a general dimension drawing, download the data sheet.
For detailed dimension drawings… |
|
|
Click on the icon in the table below.
A PDF document will open in a new window.
(Adobe Acrobat Reader 7.0, or later, is required.) |
| |
NOTE:
Brakes will be matched at rated torque unless lower
match point
(to 50% of rated) is requested.
Unless otherwise specified, all brakes are matched at 100 rpm. |
|
| Model |
Minimum Torque
at Rated Current |
Rated
Current |
Voltage* |
Maximum
Speed |
Kinetic Power** |
View
Drawing |
| 5 Minutes |
Continuous |
| N·m |
mA |
VDC |
rpm |
W |
W |
PDF |
| MHB-3M-2 |
0.02 |
145 |
25.0 |
20,000 |
20 |
5 |
see data sheet |
| MHB-10M-2 |
0.07 |
133 |
24.0 |
20,000 |
35 |
8 |
see data sheet |
| MHB-20M-2 |
0.14 |
217 |
26.0 |
20,000 |
50 |
12 |
see data sheet |
| MHB-50M-2 |
0.35 |
253 |
24.0 |
15,000 |
90 |
23 |
see data sheet |
| MHB-140M-2 |
1.00 |
253 |
24.0 |
12,000 |
300 |
75 |
|
| MHB-250M-2 |
1.75 |
270 |
25.9 |
10,000 |
450 |
110 |
see data sheet |
| MHB-450M-2 |
3.20 |
442 |
22.1 |
8,000 |
670 |
160 |
|
| MHB-750M-2 |
5.00 |
383 |
23.0 |
7,000 |
1,000 |
200 |
|
| MHB-1750M-2 |
***13.00 |
600 |
31.2 |
6,000 |
1,200 |
350 |
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| *90 bolt and non-standard coil voltages are available. 12 VDC coils are available on HB-3M-2 through HB-450M-2 models. |
| **Kinetic power ratings are maximum values based on limiting coil and/or bearing temperature to approximately 100° C, and should not be exceeded. actual values in service may vary ±50% depending on mounting, ventilation, ambient temperature, ect. |
| ***13 N·m is attainable @ approx. 600 mA. This value may decrease to 12.36 N·m if the brake is powered by any power supply or controller limited to 500 mA. |
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| Applications |
| Magtrol's innovative approach to providing
the best possible tension control systems available has led
to the development of the Matched Torque Hysteresis Brake.
This unique ability to provide matched performance characteristics
from any number of brakes of like design and rating makes
it possible to control a matched group of brakes from a single
sensor or in open loop. This assures that the same level of
current to each matched brake will result in virtually the
same torque from each matched brake. |
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 |
Magtrol
Matched Hysteresis Brake used in a multiple payoff system
where one sensor controls tension in the system. Due to
specially calibrated matched brakes, it is possible to
hold each payoff tension within ±1% at matched point
value. |
 |
Large
Bore Hysteresis Brakes installed in a fiber optic stranding
machine to control the tension of the wrapping material. |
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