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TMHSA series

Optical transmission method flange type torque transmitter TMHSA
Torque Transducer TMHS series


Compact size and light weight. Available for high speed measurement by bearing-free structure. (25 000 rpm: 100 Nm ~ 300 Nm, 22 000 rpm: 500 Nm, 1 kNm, 16 000 rpm: 2 kNm, 3 kNm, 14 000 rpm: 5 kNm)
Measurement accuracy of ±0.02 %R.O. in frequency output and ±0.03 %R.O. in voltage output is achieved.
Stator antenna has a split configuration to facilitate mounting and detachment.
Special transmitter OPT-563B is provided.
The operation without this transmitter is available and the stator outputs ±10 V.
Calibraton software provided transfers commands between TMHSA and a PC, and allows users to read TMHSA setting parameter, proceed calibration, or write the number of moving average and the analog filter frequency.
The detector for rotation speed and rotaional direction is prepared as an option.
High accuracy and low noise are achieved by the digital singnal transmission by the optical transmission method of the patent.
(USA PAT No. US6.472.656.B2, Japanese PAT No.3448738, PAT No.3453654)


Rated capacity±100 N・m ~ ±5 kN・m
Safe overload150 %R.C.
Ultimate overload300 %R.C.
Power supply22 VDC to 24 VDC, Current consumed: 1 A,
Rated power consumption: 24 W
Rated outputVoltage output: ±10 VDC, Frequency output: 10 kHz±5 kHz
(Resistive load: 2 kΩ or more, Output capacitance load: 0.1 μF or less.)
Measurement accuracyFrequency output: ±0.02 %R.O., Voltage output: ±0.03 %R.O.
(including linearity, hysteresis and repeatablity.)
Zero adjustment range±2 %R.O.
Symmetry correction range±10 %R.O.
Moving averageSelectable from 1 time, 2 times, 4 times, 8 times, 16 times, 32 times, 64 times, 128 times, 256 times and 512 times
(Default: 1 time)
Low pass filterSelectable from 1 Hz, 10 Hz, 30 Hz, 50 Hz, 100 Hz, 300 Hz, 500 Hz, and 1 kHz. (Default: 1 kHz)
Output polarity inversionOutput polarity is inverted relative to the direction of torsion.
Maximum rotation speedTMHSA-100NM ~ -300NM : 25 000 rpm
TMHSA-500NM, -1KNM : 22 000 rpm
TMHSA-2KNM, -3KNM : 16 000 rpm
TMHSA-5KNM : 14 000 rpm
Temp. range, safe-10 ℃ ~ 70 ℃
Temp. range, compensated0 ℃ ~ 60 ℃ (non-condensing)
Temp. effect on zero balance0.02 %R.O./10 ℃
Temp. effect on output0.03 %LOAD/10 ℃
Zero shift by rotation0.5 %R.O.p-p (WB=1 kHz)
Mechanical characteristics100NM200NM300NM500NM1kNM2KNM3KNM5KNM
Response frequency (kHz)1
Inertia moment (kg・cm2)13.7913.8113.8219.7726.86107.6107.8260.3
Torsional rigidity
325.0371.4372.7660.7909.81 5151 8812 647
Torsional peculiar pitch (kHz)4.7575.1615.8825.7015.8993.8014.2583.233
Bending peculiar pitch
Radial direction (kHz)2.8212.9113.0733.1353.4921.7631.9951.857
Thrust direction (kHz)3.4583.5283.6563.7154.5192.3802.5902.356
Twist angle at rated capacity (°)0.0180.0310.0360.0430.0630.0760.0910.108
Accuracy safe bending
load (N)
751502253757508001 0001 650
Accuracy safe thrust
load (N)
651301953256503 75012 0002 000
Class of protectionIP54 or equivalent
MaterialRotor part : Alloy steel, Stator part : Alluminium alloy
Weight <Rotor part>1.0 kg1.2 kg1.6 kg3.5 kg6.0 kg
Weight <Stator part>1.5 kg1.7 kg
* Accuracy safe bending load and accuracy safe thrust load are the load (actual measurement value) which generate output error of 0.05%R.O.
* Accuracy safe bending load is the result of applying the load at the position of 200 mm from the flange edge.
* All are the gurantee over static load.


Dedicated cable: CAC-176C-*M (φ11, 10-cores shielded cable with connector at the both end). (Selectable from 10
m, 20 m or 30 m), Dedicated transmitter: OPT-563B, Rotation detector for rotation speed and rotational direction : RPM

Table of P/N

Parts No.Rated capacity
TMHSA-100NM±100 N・m
TMHSA-200NM±200 N・m
TMHSA-300NM±300 N・m
TMHSA-500NM±500 N・m



CAD files (DXF)Specification sheet (PDF)Instruction manual (PDF)

TMHSA-100NM~300NM (650KB)

TMHSA-500NM (627KB)


TMHSA-2~3KNM (559KB)
with detector for rotation speed and rotational direction RPM

TMHSA-100NM~300NM (1,336KB)

TMHSA-500NM (1,326KB)

TMHSA-1KNM (1,347KB)

TMHS-2KNM ~ 3KNM (1,346KB)

TMHSA-5KNM (1,920KB)

No. KT54341-2-B (541KB)

Rotation detector for rotation speed and rotational direction : RPM

No.KT53515-2-C (1,048KB)

Cable CAC-176C-*M

No.T54323-1 (95KB)
No.EN294-1806-B (563KB)
< Chinese >No.KT60558-1 (992KB)
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