TF Series – Torque Flange Sensor

Product Description

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.

 

 

Features

  • Complete torque measuring system including:
    measuring flange with signal amplifier,HF transmitter, conditioner and 4m coaxial cable
  • Contactless signal transmission: via telemetry
  • Torque range: 20 N·m … 150 kN·m (higher on demand)
  • High accuracy: 0.1% … 0.2% (0.05% option)
  • Overload capacity: up to 200% (limit of adhesion)
  • Measuring range: 200%
  • Breaking torque: >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 and IP 65 optional)
  • Integrated speed pickup and conditioner for rotational speed measurement (optional)
  • High temperature capability: up to 125 °C (optional)

Specifications

For complete technical specifications, including detailed dimension drawings, download the data sheet.

Model Ratings

Modela)Rated Torque [N·m]Overload Capacity (% of R.T.)Accuracy ClassMaximum Speed [rpm]Tortional Stiffness [kN·m/rad]Deformation Angle [Degrees]Sensor Weight [kg]c)Moment of Inertia [kg·m²]Moment of Inertia [lb·ft·s²]Drawinge)
TF 309 /
TFHS 309
20200%0.1%17 000
20 000
500.0231.40.00220.0016pdf | step
TF 310 /
TFHS 310
50200%0.1%17 000
20 000
720.041.50.00220.0017pdf | step
TF 311 /
TFHS 311
100200%0.1%b)17 000
20 000
860.0671.50.00220.0017pdf | step
TF 312 /
TFHS 312
200200%0.1%b)17 000
20 000
1060.1081.50.00230.0017pdf | step
TF 313 /
TFHS 313
500200%0.1%b)15 000
20 000
8500.0341.90.00460.0034pdf | step
TF 314 /
TFHS 314
1 000200%0.1%b)15 000
20 000
1 2850.0452.00.00470.0035pdf | step
TF 315 /
TFHS 315
2 000200%0.1%b)10 0002 4760.045.20.01110.0082pdf | step
TF 316 /
TFHS 316
5 000200%0.1%b)10 000
12 000
5 5730.0515.00.02520.0186pdf | step
TF 317 /
TFHS 317
10 000150%d)0.1%b)10 000
20 000
6 1410.0936.00.02760.0204pdf | step
TF 31820 000200%0.1% – 0.2%3 50044 0000.02656.01.34300.9911pdf | step
TF 31950 000180%d)0.1% – 0.2%3 50074 7000.03859.01.37901.0177pdf | step
TF 320100 000180%d)0.1% – 0.2%3 5001 047 0000.05563.51.39701.0310pdf | step

a) Torque up to 150 kN·m or higher, and high speed versions are available on request
b) Linearity- hysteresis error 0.05 % is available on request
c) Add 0.8 – 2.8 kg to weight (depending on configuration), for electronic devices attached to the sensor (HF transmitter, receiver, speed conditioner,…)
d) Dynamic torque peak values are due to force transmission limit of mounting screws
e) The physical design of the HS version is identical to the standard version, only the specifications are different. If you want a specific sales drawing for the HS version, you can request it from our sales network

Ratings Common to All TF Sensors

Torque Measurement
Maximum Dynamic Torque without Damage (Overload Limit)400% of Rated Torque
Environment
Rated Temperature Range+10 °C to +85 °C
Storage Temperature Range-25 °C to +85 °C
Extended Temperature Range (optional)-30 °C to +125 °C
Temperature influence on zero0.01 % / °C
Protection classIP 42 (optional IP 54 and IP 65) a)
Electrical Characteristics
Power Supply24 V DC ±10%, max 350 mA
TF 318, TF 319 & TF 320: 100-240 VAC
Torque Output Signal (rated / max.)±5 V DC / ± 10 V DC
Filter Bandwidth0 to 1 kHZ (-3dB) / (optional 5 kHZ)
Speed Measurement (Option)
Number of TeethDepending on TF size; refer to datasheet
Speed Pick-Up TransducerMagnetoresistive
Minimum Speed Detection< 1 rpm
Speed OutputTTL (pulses per revolution corresponds to number of teeth)

a) With IP 54 & IP 65, the combined error for models TF 309 – TF 312 is degraded; it will be 0.15 % instead of 0.1 %.

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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                    [post_content] => Magtrol offers three types of torque transducers for dynamic torque and speed measurement. All three transducer models employ our unique non-contact differential transformer torque measuring technology. This measuring technology offers many benefits most notably that no electronic components rotate during operation. Each model has an integrated conditioning electronic module providing a 0 to ±10 VDC torque output and an open collector speed output. Magtrol’s Torque Transducers are very reliable, providing high overload protection, excellent long-term stability and high noise immunity.

Features

  • Integrated Torque and Speed Conditioning
  • Torque Range: 0.1 N·m to 10,000 N·m (0.07 lb·ft to 7375 lb·ft)
  • Accuracy: < 0.1%
  • Overload Capacity: 200%
  • Breaking limit: up to 400%
  • High Speed Applications: up to 50,000 rpm
  • Non-Contact (no slip rings)
  • No Electronic Components in Rotation
  • No Electrical Noise
  • Single DC Power Supply: 20 to 32 VDC
  • Immediate Speed Detection
  • Adjustable Torque Signal Frequency Limitation
  • Built-in Test Function
  • Stainless Steel Shaft
  • EMC Susceptibility Conforms to European Standards
  • Calibrated to METAS standards
[post_title] => TM Series - Torque Sensors [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => torque-transducers [to_ping] => [pinged] => [post_modified] => 2022-04-18 10:25:13 [post_modified_gmt] => 2022-04-18 14:25:13 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=940 [menu_order] => 33 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [1] => WP_Post Object ( [ID] => 1091 [post_author] => 1 [post_date] => 2017-04-07 16:18:37 [post_date_gmt] => 2017-04-07 16:18:37 [post_content] => [post_title] => BKC-TF Series - Bellow Couplings for TF Torque Flange Sensors [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => bkc-tf-series-bellow-couplings-for-tf-torque-flange-sensors [to_ping] => [pinged] => [post_modified] => 2022-04-18 10:52:28 [post_modified_gmt] => 2022-04-18 14:52:28 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=1091 [menu_order] => 83 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [2] => WP_Post Object ( [ID] => 1066 [post_author] => 1 [post_date] => 2017-04-07 16:00:19 [post_date_gmt] => 2017-04-07 16:00:19 [post_content] => [post_title] => KTF Series - Couplings for TF Torque Flange Sensors [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => ktf-series-couplings-for-tf-torque-flange-sensors [to_ping] => [pinged] => [post_modified] => 2022-04-18 10:54:13 [post_modified_gmt] => 2022-04-18 14:54:13 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=1066 [menu_order] => 84 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [3] => WP_Post Object ( [ID] => 1018 [post_author] => 1 [post_date] => 2017-04-07 14:02:26 [post_date_gmt] => 2017-04-07 14:02:26 [post_content] => Magtrol’s Model 3411 Torque Display is designed for use with all Magtrol TS, TM, TMHS, TMB and TF Torque Transducers. This easy-to-use device powers the transducer and utilizes high speed processing to display torque, speed and mechanical power. It includes a tare function to help offset any slight residuals caused by couplings or suspended loads. The 3411 may also be used with any torque sensors requiring 24 V DC power (500 mA max.) with ± 5 V DC torque output (± 10 V DC max.) and open collector, TTL or CMOS output for the speed signal. [post_title] => 3411 - Torque Display [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => model-3411-torque-display [to_ping] => [pinged] => [post_modified] => 2022-04-18 10:42:18 [post_modified_gmt] => 2022-04-18 14:42:18 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=1018 [menu_order] => 68 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) ) [post_count] => 4 [current_post] => -1 [in_the_loop] => [post] => WP_Post Object ( [ID] => 940 [post_author] => 1 [post_date] => 2017-04-06 18:54:30 [post_date_gmt] => 2017-04-06 18:54:30 [post_content] => Magtrol offers three types of torque transducers for dynamic torque and speed measurement. All three transducer models employ our unique non-contact differential transformer torque measuring technology. This measuring technology offers many benefits most notably that no electronic components rotate during operation. Each model has an integrated conditioning electronic module providing a 0 to ±10 VDC torque output and an open collector speed output. Magtrol’s Torque Transducers are very reliable, providing high overload protection, excellent long-term stability and high noise immunity.

Features

  • Integrated Torque and Speed Conditioning
  • Torque Range: 0.1 N·m to 10,000 N·m (0.07 lb·ft to 7375 lb·ft)
  • Accuracy: < 0.1%
  • Overload Capacity: 200%
  • Breaking limit: up to 400%
  • High Speed Applications: up to 50,000 rpm
  • Non-Contact (no slip rings)
  • No Electronic Components in Rotation
  • No Electrical Noise
  • Single DC Power Supply: 20 to 32 VDC
  • Immediate Speed Detection
  • Adjustable Torque Signal Frequency Limitation
  • Built-in Test Function
  • Stainless Steel Shaft
  • EMC Susceptibility Conforms to European Standards
  • Calibrated to METAS standards
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