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TF Series Torque Flange Sensor

SpecificationsData SheetManual
 
With its compact, bearingless, maintenance-free design, the new TF Torque Flange Sensor from Magtrol brings many appealing advantages to torque measurement applications. The TF’s high torsional rigidity supports direct mounting on the machine shaft or flange, avoiding the use of couplings on one side. This allows easy integration into a test system, shortens the overall length of the test bench and reduces costs.

Based on strain-gauge technology, the TF Sensor’s precise telemetry system enables highly accurate signal transmission. A signal amplifier mounted in the measuring flange amplifies the measuring signal, modulates it to high frequency and transmits it inductively (via the HF transmitter) to the receiver. In the receiver, the digitized torque signal is transformed into an analog output signal of ±10 VDC. Rotational speed can be measured and converted to a TTL output signal with the optional speed pickup.

The contactless design of the Torque Flange Sensor permits a gap of up to 5 mm (typically 1 to 3 mm) between the rotor antenna and HF transmitter, which makes the signal acquisition insensitive to any axial or radial misalignment. Another advantage of this torque measurement system is its insusceptibility to signal interference—due to the fact that, unlike other designs, the antenna does not need to be looped around the sensor. Additionally, a protective cover can be mounted close to the sensor with no effect on the signal.
TF Torque Flange

Features
  • Complete Torque Measuring System consisting of:
      • Measuring flange with signal amplifier
      • HF transmitter
      • Receiver/Conditioner
      • 4 m cable
  • Contactless signal transmission: via telemetry
  • Torque range: 50 N·m to 150,000 N·m
  • High accuracy: 0.1% to 0.25%
  • Overload capacity: up to 200%
  • Overload limit: 400%
  • Compact, easy-to-mount design
  • High torsional stiffness
  • Bearingless: maintenance and wear-free
  • Excellent noise immunity and shock resistance
  • Protection class: IP 42 (IP 54 optional)
  • 24 VDC standard power supply
  • Integrated speed pickup and conditioner (option): for rotational speed measurement
  • High temperature capability: up to 125 °C (optional)

Applications
TF Torque Flange Sensors measure both static and dynamic torque on stationary and rotating shafts. They are used in general combustion engine, electric motor and gearbox test benches; and can also be mounted inline for active torque monitoring of transmissions, powertrains, wind generators, gas turbines, boat engines, etc.
 
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Technical Specifications
 
For complete technical specifications, including detailed dimension drawings, download the data sheet.
 

Model Ratings

 
Model Rated
Torque *
Overload
Capacity
Accuracy
Class *
Maximum
Speed *
Tortional
Stiffness
Deformation
Angle
Moment of Inertia
N·m % of R.T. TF rpm TFHS rpm N·m/rad ° kg·m² lb·ft·s²
TF 309   20 200% 0.10% 17,000   5.04 × 104 0.023 2.213 × 10-3 1.633 × 10-3
TF 310 TFHS 310 50 200% 0.10% 17,000 20,000 7.20 × 104 0.04 2.236 × 10-3 1.650 × 10-3
TF 211   100 200% 0.10% 17,000   1.25 × 105 0.046 3.172 × 10-3 2.341 × 10-3
TF 311 TFHS 311 100 200% 0.10% 17,000 20,000 8.57 x 104 0.067 2.238 x 10-3 1.651 x 10-3
TF 312 TFHS 312 200 200% 0.10% 17,000 20,000 1.06 × 105 0.108 2.254 × 10-3 1.663 × 10-3
TF 213   500 200% 0.10% 13,000   7.16 × 105 0.04 7.803 × 10-3 5.758 × 10-3
TF 214   1,000 200% 0.10% 13,000   9.55 × 105 0.06 7.818 × 10-3 5.769 × 10-3
TF 215   2,000 200% 0.10% 10,000   2.86 × 106 0.04 1.868 × 10-2 1.378 × 10-2
TF 216   5,000 200% 0.10% 8,000   7.16 × 106 0.04 4.747 × 10-2 3.503 × 10-2
TF 217   10,000 ‡ 150% 0.10% 8,000   1.25 × 107 0.046 4.706 × 10-2 3.472 × 10-2
TF 218   20,000 200% 0.20% – 0.25% 3,000   2.86 × 107 0.04 9.635 × 10-1 7.109 × 10-1
TF 219   50,000 ‡ 180% 0.20% – 0.25% 3,000   6.82 × 107 0.042 9.724 × 10-1 7.175 × 10-1
TF 220   100,000 200% 0.25% – 0.30% 3,000   3.37 × 108 0.017 1.070 × 100 7.895 × 10-1

* Available upon request:
   • Torque up to 150,000 N·m
   • 0.05% accuracy
   • High speed versions
‡ Dynamic torque peak values for Models TF 217 and TF 219
  are due to force transmission limit of mounting screws.

Ratings Common to All TF Sensors

Torque Sensor Ratings
 
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Magtrol, Inc (USA): 716-668-5555 • magtrol@magtrol.com ~ Magtrol SA (Switzerland): 41 (0)26 407 3000 • magtrol@magtrol.ch
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