MAGPOWR DFP2 Follower Arm Sensor Positioners

The goal in dancer/follower arm applications is to utilize the dancer arm for increased accuracy in tension control, eliminating dependence on an operator and achieve automatic control of the braking torque on the unwind roll — resulting in constant web tension.

MAGPOWR’s compact DFP-2 is perfect for use in dancer control applications with the MAGPOWR VERSATEC, and in dancer and follower arm applications with the Spyder and DFC-90. It offers the same exceptional sensing performance as the original DFP sensor, but in a lighter duty, low cost housing.

The DFP-2 also includes a servo-type flexible coupling to allow for misalignment in shaft-to-shaft applications as well as 15 feet of shielded cabling for ease of installation. The DFP and DFP-2 use the same conductive plastic element to measure dancer and follower arm positions.



  • Rugged cast, non-magnetic housing
  • Water tight construction
  • Easy to mount


  • Potentiometer1 kΩ, 360° rotation
  • ShaftOverhung load capacity, 4.5 kg at center of shaft
  • Flexible CouplingAccommodates 5° angular and 0.25 mm
    offset misalignment with no backlash