Placid Industries - - Large, high torque Magnetic Particle Clutches, up to 300 lb.-feet torque.

Magnetic Particle Clutch - Specifications

  graphic  Smaller clutches
available.
  clutch photo
Torque range = 0.2 - 15  to  300 lb.-feet  (3600 lb.-inch)

View in metric units

5 solid shaft models
Solid shaft clutch photo
 Typical applications:
  • Adjustable tension for rewinding webs
  • Load simulation
  • Torque limiting
  • Soft starts
2 hollow shaft models
Hollow clutch photo
graphic

Mount with shafts horizontally only.
See mounting recommendations.
Model  POC-200F   Model PHC-50


Torque Curve Torque is -
  • Proportional to input current
  • Independent of RPM

Characteristics - With no electrical excitation, the input shaft & output shaft freely rotate.
With electrical excitation, the output shaft becomes coupled to the input shaft.

While the load torque is less than the output torque, the clutch drives without slip. When the load torque is increased, the clutch will slip smoothly at the torque level set by the coil input current.

Use the sizing information to select the proper clutch.


Clutch Specifications
MODEL

(Click p/n
to view
photo)
image
Shaft
Style
 Torque 
Range


(lb.-ft.)
image 24v
 Coil
 Max. 
Over-
hung
Load


(lbs.)
Max.
RPM
Weight

(lbs.)
Data Sheets

image PDF logo
  Drawings  

image
Input
Current

(amps)
 KC-2.5 icon
solid
0.2 - 15 1.3 90  1800  21 KC-2.5
data sheet
PDF icon DXF
 KC-5 0.5 - 38 2 125 35 KC-5
data sheet
PDF icon DXF
 POC-100F 0.5 - 70 2.4 175 87 POC-100F
data sheet
PDF icon DXF
 POC-200F 2 - 130 2.7 200 147 POC-200F
data sheet
PDF icon DXF
 POC-400F 4 - 300 3.5 325 259 POC-400F
data sheet
PDF icon DXF
 PHC-50 icon
hollow
1 - 30 1.3 125 1000 26 PHC-50
data sheet
PDF icon DXF
 PHC-100  1 - 65 2.2 175 46 PHC-100
data sheet
PDF icon DXF

DRAWINGS:   PDF-Adobe Acrobat.        DXF-Import into your CAD program.




air fitting photo   Compressed Air Cooling


Clean, dry compressed air may be used to increase cooling.
The case has a BSPT threaded port for air connections.

Standard feature on solid shaft clutches.
 

Heat Dissipation
MODEL Heat Dissipation
(watts)
Compressed Air
at
100 RPM
at
1000 RPM
with compressed
air cooling
Pressure
(lb.-in.2)
Flow Rate
(ft.3 / minute)
KC-2.5 130 175 260 4 6
KC-5 190 275 425 5 7
POC-100F 300 500 800 9 5
POC-200F 425 800 1200 7 6
POC-400F 550 1200 1900 21 14
PHC-50 250 400 -
PHC-100 400 800
   
 

Fins on internal rotor move air which increases cooling with increasing input RPM.



Power Supplies  -  For large brakes & clutches or multilple smaller ones.

2, 3, & 4 Amp versions   2, 3, & 5 Amp versions
PST Power Supply Photo PSH Power Supply Photo
Control Output Current via -
  • Knob (Potentiometer)
  • 0-5 volt signal
  • 0-10 volt signal
  • 4-20mA signal
More information >>
Control Output via -
  • Current Knob (Potentiometer)
  • Voltage Knob (Potentiometer)

More information >>



Ultrasonic Sensor - For Constant Tension Unwinding & Rewinding

Signal Isolation Card.gif

The ultrasonic sensor measures the diameter of the roll, to keep tension constant as roll diameter changes.
The user adjusts tension via a remote potentiometer.

The Signal Isolation Card powers the ultrasonic sensor.   The 0-10 volt signal controls the power supply.




Tension Controller / Power Supply & Hall Switch - For Constant Tension Unwinding & Rewinding

ZXM-32 photo   The ZHS Hall Switch senses shaft rotations. The ZXM-32 Tension Controller / Power Supply calculates the diameter of the roll, based on the web thickness and number of roll rotations. Output current is automatically changed to keep tension constant as roll diameter changes.
ZHS photo   Instructions

  Excel programming calculator
ZXM-32 Tension Controller / Power Supply          ZHS Hall Switch  


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