Tianji Transmission magnetic powder brakes with fan are based TJ-POD uniaxial magnetic brakes add a fan (radiator), therefore had some increase thermal performance, which can be use in a higher temperature applications.
Use this type of magnetic brakes generally have special requirements or heat dissipation due to its use in the environment must have the means to speed cooling fan.
The basic characteristics are as follows:
1, the excitation current - torque characteristics, excitation current and torque substantially linear relationship between the excitation current can be controlled by adjusting the size of torque;
2, slip speed - torque and speed torque characteristics unrelated to maintain constant. (When the excitation current constant within the allowable slip torque speed range from low speed impact of changes) static torque and dynamic moment there is no difference.
Model TJ-POD | 0.6KG | 1.5 KG | 2.5 KG | 5 KG | 10 KG | 20 KG | 40 KG | |
Rated turning distance(N-m) | 6 | 12 | 25 | 50 | 100 | 200 | 400 | |
Current (A) | 0.81 | 0.94 | 1.24 | 2.15 | 2.4 | 2.7 | 3.5 | |
Power (W) | - | 250 | 380 | 700 | 1100 | 1900 | 2800 | |
Weight (KG) | 4 | 5.2 | 9 | 14.5 | 34 | 53 | 100 | |
Max speed(r/min) | 1800 | |||||||
Weight of powder(g) | 10 | 20 | 33 | 60 | 140 | 225 | 370 | |
Diameter
| D1 | 134 | 152 | 182 | 219 | 278 | 327 | 395 |
D2 | 116 | 126 | 160 | 196 | 260 | 301 | 365 | |
D3(g7) | 42 | 42 | 55 | 74 | 100 | 110 | 130 | |
D4 | 64 | 64 | 78 | 100 | 140 | 150 | 200 | |
L | 112.5 | 132 | 155 | 193 | 239 | 278 | 338 | |
L1 | 26 | 29 | 43 | 55 | 65 | 69 | 92 | |
L2 | 82 | 98 | 108 | 132 | 167 | 199 | 234 | |
L3 | 14 | 15 | 17 | 30 | 28 | 30 | 35 | |
L4 | 18 | 25.5 | 26 | 28 | 46 | 56 | 70 | |
L5 | 12.5 | 14.5 | 15 | 18 | 21.5 | 32 | 40 | |
d(h7) | 12 | 15 | 20 | 25 | 30 | 35 | 45 | |
H | 13.5 | 17 | 22 | 28 | 33 | 38.5 | 48.5 | |
W(p7) | 4 | 5 | 5 | 7 | 7 | 10 | 12 | |
V | M4*0.7P*8L | M4*0.7P*8L | M5*0.8P*10L | M6*1P*12L | M10*1.5P*20L | |||
R | 6-M5*0.7P*10L | 6-M6*1P*10L | 6-M10*1.5P*15L | 8-M10*1.5P*15L | ||||
S | 1/8 | 1/8 | 1/8 | 1/4 | 3/8 | 3/8 | 3/8 |
Features
The magnetizing current has a relationship with torque
The transmission torque has a linear relationship with the magnetizing current. The size of the torque can get controlled within larger range. Under normal circumstance, the magnetizing current has a linear relationship with transitive torque within range of 5%-100% rated torque.
Stable slip torque
The slip rotational speed between driven rotor and active rotor do not affect the transitive torque when the magnetizing current retain constant. That is to say, the static friction torque and the dynamic friction torque have no difference. Therefore, the torque can retain constant stably. The featuers are applied to tension control, users can control the tension of the roll material effectively as long as regulating the magnetizing current accurately.
Prevention of the phenomenon of heat since slip
The friction part will generate heat inevitably or even destroyed when it keep continuous sliding. But this device has a complete cooling set, it will not generate a lot of heat after long time running and it has a long service life.
Application
Due to the features of the magnetic powder clutch and brake, they have been widely used in paper making, printing , plastic items, rubber industry, textile industry, printing and dyeing, wire and cable, metallurgy industry and tension control of winding and unwinding in roll material processing industry.
Notes
Don’t overload, meanwhile cool to appropriate temperature
The value of the torque/rotational speed/slip power should be less than the rated value. The cooling mode(natural cooling/forced air cooling/water cooling) should depend on the maximum slip power when it works and the cooling air should pass the water and oil filter. The temperature detector and the alarm should be installed to prevent high temperature which can affect the service life of the magnetic powder.(the highest temperature is 80 degree)
Concerning the service life
The life of the magnetic powder clutch and brake rely on the life of the magnetic powder. Generally speaking, its service life is 4500-7500hours in the state of non overloaded; but its service life can extend several times in some cases, such as: the working torque of the magnetic powder clutch/brake,relative slip rotational speed and slip power can be reduced to 50%-70% of the rated value. This is to say, the margin can be enlarged as soon as possible when designing.
Concerning the torque
After the magnetic powder clutch and brake working, the magnetic powder will be in grinding at the beginning which leads to the torque decreasing slightly, but the gap can be compensated through adjustment the current.
Product superiority
1. CNC precision manufacturing, high accuracy, fine machining , good linearity, and superior performance.
2. Magnetic powder purity, without black toner, stable performance, and long life.
3. Aluminum alloy structure, excellent thermal performance, good demagnetization, fast response.
4. Smooth running, no vibration, no impact, no noise when in starting, running, braking state.
Powder Brake Application
Applied industry
1. Packing and wrapping system: packing machines, strapping machines, wrapping machinery
2. Textile machinery: fiber twisters, treatment machines, weaving machines.
3. Metal finishing systems: extruders, wire stretchers, presses, welders, steel wire reactors, cutters, pipe makers, wire winding machines
4. Machine tool systems: laths, millers, steel extruders, CNC lathes, specialized machinery.
5. Transportation equipment: hoists, feeders, conveyors, rollers, winders.
6. Paper-making systems: bad-making machines, box-making machines, slitters, book-making machinery, cutters, copy paper machines.