E-Catalog > Powder Brake > Features and Principles

1. High-precision and Wide Controllability
Super precision processing allows fast and fine responsibility and variable torque delivery, whichgives wide range of control because you can adjust torque for your application.

2. Low Maintenance Expense
Since the components of powder are Fe, Al, and Cr alloy concreteness powder, it has excellent heat-resisting, oxidation-resisting, erosion resisting and abrasion endurance property.
This product guarantees the long life time so that you can use without grease refill by employing rubber seal type bearing.

3. Stability
Since constant torque is delivered to output shaft regardless of the R.P.M of the input shaft, youcan protect your equipment stability by generating as much slip as the overload in case of abnormality in power system

4. High Reliability
Since the transmission torque is maintained in proper level until the load voltage is adjusted stable in any condition, you can use it long unmanned operation.

5. Convenience
With auto tension controller that is made by Pora Electrical's unique control mode and accumulated know-how, you can automate your tension control.

6. Impact Absorbability
General electronic Brake/Clutch transmits momentary torque at time of power feeding that impacts the machine. However, Powder Brake/Clutch induce slip generation to transmit smooth power to the machine so that the machine would not be overloaded.

When current flows in the coil, the powder is connected in iron chain form depending on the magneticflux. At this time, the torque is transmitted by the interconnection force in the powder and friction of moving surface.

1. Natural Air Cooling 2. Forced Ventilation 3. Water Cooling 4. Outer Radiation

1. Since Clutch and Brake operates by powder, be sure to prevent foreign material such as humidity and oil inside.

2. Prevent any external impacts since the Brake and Clutch is operating in concentricity. (Tir is 0.15)

3. Prevent any moisture (water) inside yoke.

4. As axis diameter and inner diameter tolerance produced by our company is h6 under Ø48, and m6 error above Ø55, adjust to axis diameter and inner-diameter.

5. Be sure to adjust angles for Clutch, Brake shaft and bracket within Tir 0.15.

6. The tolerance of concentricity between shafts should be within Tir 0.15.

7. Balance the machine. Or you should have hunting (malfunction).

1. Fill up the powder when you have malfunction due to the abrasion of Power Brake/Clutch powder.

2. In case of Powder Brake/Clutch, hunting (malfunction) can happen due to bearing wear-out. Be sure to check the bearings on regular basis.

3. Be sure to maintain surrounding temperature of Powder Brake/Clutch within 85℃.

4. Do not extend the lead wire excessively.

5. You need to feed 1.2 times of rated amount for normal operation when you use the equipment over 2 years.