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Torque Detector
MTシリーズ（TS-8700用）

High-performance motors, including ultra-precision motors, are used in many things around us, such as automobiles, home appliances, industrial equipment, and OA/AV equipment.
And there are many types of motors depending on the application, from ultra-high-speed to low-speed, or even ultrasonic types.

Ono Sokki provides wide variety types of torque detectors as the MT-series. You can select to meet requirements, including measurements for high-speed rotation motors, for large capacity motors, for torque ripple, and for cogging torque.

Furthermore, we have added a lineup equipped with the RH series compact high-rigidity torque detectors (10 N·m/20 N·m).
The RH type torque detector is a torque detector that achieves high accuracy (±0.05 % FS) and high rigidity (4.5 times that of our existing models), enabling motor torque fluctuation measurement up to higher frequency ranges.
*For motor characteristic measurement, the TS-8700 Torque Station Pro is required in addition to the MT series detector.

Specifications

Torque detection method MT-8*M**: Electromagnetic gear phase difference method
MT-8*T**: Electromagnetic induction phase difference method
MT-8*R**: Strain gauge method
Bearing system Ball bearing method
Torque measurement accuracy ±0.2 % FS
±0.1 % FS (Some models of MT-8*T** (equipped with TH detector))
±0.05 % FS (MT-8*R**)
*: Combined with TS-8700/7700/B after N-0 correction. 1-second average.
> Excludes fluctuation components caused by equipment components and resonance components including the test specimen.
Motor power supply Does not include power supply for the motor.
Power supply voltage MT-8*M**：AC 100 V±10 % 50/60 Hz
MT-8*T**：AC 100 to 240 V±10 % 50/60 Hz
MT-8*R**：AC 100 to 240 V±10 % 50/60 Hz
Power consumption MT-8*M**: Small capacity: Approximately 20 VA or less Medium capacity: Approximately 38 VA or less
MT-8*T**: Small capacity: Approximately 6 VA or less Medium capacity: Approximately 7 VA or less
MT-8*R**: Approximately 44 VA or less
Isolation resistance 10 MΩ or more (rated voltage DC 500 V)
Withstand voltage AC 1500 V for 1 minute
Temperature and humidity Operating temperature range +0 to +40 ℃
Operating humidity range +30 to +80 %RH (no condensation)
Storage temperature range-10 to +50 ℃
Storage humidity range +30 to +80 %RH (no condensation)
Altitude conditions, etc. Pollution level 2
Maximum altitude 2000 m (MT-8*T/R** only)
Maximum altitude 1000 m (MT-8*M**)
No condensation, no corrosive gases
Corresponding Standards
CE marking
(compliant with MT-8*T**/ MT-8*R**)		 Low Voltage Directive: 2014/35/EU EN61010-1
EMC Directive: 2014/30/EU EN61326-1 Class 1 Industrial Environment
RoHS Directive: 2011/65/EU EN IEC 63000
FCC
(MT-8*T** compliant)		 CRF47 Part 15 Subpart B Class A
Braking ability Available for use within the range shown in the figure.
  • MT-82 Series Built-in Motor Driving Capability Diagram
    MT-82 Series Built-in Motor Driving Capability Diagram
  • MT-84 and MT-85 Series Brake Absorption Capacity Diagram
    MT-84 and MT-85 Series Brake Absorption Capacity Diagram

* MT-84/85 series can be used within the upper range and within the braking capability W.
   Braking capability W=Torque N·m × Rotation speed r/min × 0.10472

In addition to the MT series, we can manufacture detectors with various rotational speed ranges and torque ranges based on discussions. Please consult with us.

Video

MT/TS Series
Cogging Torque Measurement Procedure (JPN)

MT-82 M/T/R Torque Ripple and Cogging Torque Detector
MT-82 M/T/R Torque Ripple and Cogging Torque Detector

MT-82 M/T/R Torque Ripple and Cogging Torque Detector

This detector is suitable for measuring torque ripple during motor excitation and cogging torque when the motor is de-energized.

MT-82M＊＊ can perform constant control measurements between 0.5 and 5 r/min, while MT-82T＊＊, with some exceptions, can perform measurements between 2 and 15 r/min.

Measurement items Torque, rotational speed, rotational angle*, current*, voltage* (*: optional)
Weight It varies by model.

*Resonance may have an effect.
*Fluctuation components resulting from the equipment configuration may have an effect.
*Details will be determined after consultation.

Series Identification code Torque
(N·m)		 Rotation speed
range (r/min)		 Torque measurement accuracy
% FS
MD/SS equipped
Standard type

Successor
of
MT-6200B series		 82M21 0.002 0.5 to 5 ±0.2
82M51 0.005 0.5 to 5 ±0.2
82M12 0.01 0.5 to 5 ±0.2
82M22 0.02 0.5 to 5 ±0.2
82M52 0.05 0.5 to 5 ±0.2
82M13 0.1 0.5 to 5 ±0.2
82M23 0.2 0.5 to 5 ±0.2
82M53 0.5 0.5 to 5 ±0.2
82M14 1 0.5 to 5 ±0.2
82M24 2 0.5 to 5 ±0.2
82M54 5 0.5 to 5 ±0.2
82M15 10 0.5 to 5 ±0.2
82M25 20 0.5 to 5 ±0.2
TH equipped
High performance type

Successor
of
MT-6200B series		 82T52 0.05 2 to 15 ±0.2
82T13 0.1 2 to 15 ±0.2
82T23 0.2 2 to 15 ±0.2
82T53 0.5 2 to 15 ±0.2
82T14 1 2 to 15 ±0.2
82T24 2 2 to 15 ±0.1
82T54 5 2 to 15 ±0.1
82T15 10 0.5 to 5 ±0.1
82T25 20 0.5 to 5 ±0.1
Equipped with RH
High Precision Type		 82R15 10 0.5 to 5 ±0.05
82R25 20 0.5 to 5 ±0.05
["img-mt-4-05"]
MT-84 M/T/R Hysteresis Brake Type Detector

MT-84 M/T/R Hysteresis Brake Type Detector

Supports high rotation speed

Automatically measures motor rotation speed and torque characteristics when combined with TS-8700

Torque control and rotation speed control can be performed, compatible with AC motor measurement and DC motor measurement.

Measurement items Torque, rotational speed, current*, voltage* (*: optional)
Weight varies by model

*The brake has idling torque, so measurement under no-load conditions is not possible.
*Resonance may have an effect.
Fluctuating components resulting from the equipment configuration may have an effect.
*Details will be determined after consultation.

Series Identification code Torque
(N·m)		 Braking capacity
(W)		 Rotation speed
range (r/min)		 Torque measurement accuracy
% FS
MD/SS equipped
Standard type

Successor
of
MT-6400B series		 84M22 0.02 5 100 to 20,000 ±0.2
84M52 0.05 8 100 to 20,000 ±0.2
84M13 0.1 12 100 to 20,000 ±0.2
84M23 0.2 23 100 to 15,000 ±0.2
84M53 0.5 75 100 to 12,000 ±0.2
84M14 1 75 100 to 12,000 ±0.2
84M24 2 160 100 to 10,000 ±0.2
84M54 5 200 100 to 10,000 ±0.2
84M15 10 350 100 to 7,000 ±0.2
84M25 20 600 100 to 7,000 ±0.2
TH equipped
High performance type

Successor
of
MT-6400B series		 84T22 0.02 5 100 to 9,000 ±0.2
84T52 0.05 8 100 to 11,000 ±0.2
84T13 0.1 12 100 to 20,000 ±0.2
84T23 0.2 23 100 to 15,000 ±0.2
84T53 0.5 75 100 to 12,000 ±0.2
84T14 1 75 100 to 12,000 ±0.2
84T24 2 160 100 to 10,000 ±0.1
84T54 5 200 100 to 10,000 ±0.1
84T15 10 350 100 to 7,000 ±0.1
84T25 20 600 100 to 7,000 ±0.1
Equipped with RH
High Precision Type		 84R15 10 350 100 to 7,000 ±0.05
84R25 20 600 100 to 7,000 ±0.05

*There is free rotation torque in the brake, and measurements cannot be taken under no-load conditions.

["img-mt-4-06"]
MT-85 M/T/R Powder Brake Type Detector

MT-85 M/T/R Powder Brake Type Detector

For measuring motors with relatively large capacity and low rotational speed, such as geared motors

It can automatically measure the rotational speed and torque characteristics of the motor when combined with the TS-8700.

Measurement items Torque, rotational speed, current*, voltage* (*: optional)
Weight It varies by model.

*The brake has idling torque, so measurement under no-load conditions is not possible.
*Please consult separately for custom large-capacity detectors.
*Resonance may have an effect.
Fluctuation components resulting from the equipment configuration may have an effect.
*Details will be determined after discussion.

Series Identification code Torque
(N·m)		 Braking capacity
(W)		 Rotation speed
range (r/min)		 Torque measurement accuracy
% FS
SS equipped
Standard type
Successor
of
MT-6500B series		 85M14 1 20 5 to 1,800 ±0.2
85M24 2 50 5 to 1,800 ±0.2
85M54 5 130 5 to 1,800 ±0.2
85M15 10 320 5 to 1,800 ±0.2
85M25 20 450 5 to 1,800 ±0.2
TH equipped
High performance type
Successor
of
MT-6500B series		 85T14 1 20 5 to 1,800 ±0.1
85T24 2 50 5 to 1,800 ±0.1
85T54 5 130 5 to 1,800 ±0.1
85T15 10 320 5 to 1,800 ±0.1
85T25 20 450 5 to 1,800 ±0.1
Equipped with RH
High Precision Type		 85R15 10 320 5 to 1,800 ±0.05
85R25 20 450 5 to 1,800 ±0.05

*We will provide a separate estimate for equivalent items of discontinued products.

Options

Identification Code Option

/B1 XYZ base for small capacity

/B1 XYZ base for small capacity

Base to attach a target with XYZ stage (/X1)and V block (/V1). 

Used for small capacity torque measurement, desktop type.

Applicable common parts
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

L-shaped base for small capacity

L-shaped base for small capacity

Base to attach a target with L-shaped jig (/L1).
Used for small capacity torque measurement. Desktop type.

Common target parts
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

/B3a Stand with XYZ stage and casters for medium capacity

/B3a Stand with XYZ stage and casters for medium capacity

Used for small capacity torque measurement. Desktop type.

Table surface: □200 mm
X (Horizontal direction perpendicular to rotation axis): ±10 mm
Y (Horizontal front-back direction of rotation axis): ±20 mm
Z (Vertical direction): 70 mm
Load capacity: 5 kg

Applicable common parts
82T24 to 82T25, 82R15, 82R25
82M14 to 82M25, 84R15
84T24 to 84T15, 85R15, 85R25
84M24 to 84M15
85T14 to 85T25
85M14 to 85M25

B4 Large stand with casters for medium/large capacity 

B4 Large stand with casters for medium/large capacity 

Select this when mounting the medium and large capacity common parts on a slide base (/S3) and L-shaped jig (/L2).

Target Common Parts
82T24 to 82T25, 82R15, 82R25
82M14 to 82M25, 84R15, 84R25
84T24 to 84T25, 85R15, 85R25
84M24 to 84M25
85T14 to 85T25
85M14 to 85M25

/X1 XYZ stage for small capacity 

/X1 XYZ stage for small capacity 

This is an XYZ stage for small-capacity desktop types.

Table surface: □80 mm
X (horizontal direction perpendicular to the rotation axis): ±12.5 mm
Y (horizontal front-back direction of the rotation axis): ±12.5 mm
Z (vertical direction): 45 mm
Load capacity: 3 kg

Common target parts
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

Slide base for L-shaped jigs for medium to large capacity in S3.

Slide base for L-shaped jigs for medium to large capacity in S3.

Select when using an L-shaped jig (/L2) mounted on a large frame with casters (/B4).

Slide amount of the L-shaped jig: 330 mm
(This is the length from end to end. The actual slide amount depends on the size of the L bracket being mounted.)

/V1 V-block A ⌀30 to 60 for small capacity

/V1 V-block A ⌀30 to 60 for small capacity

This is a V-block for mounting specimens on the small-capacity XYZ stage (/X1). It is for small-capacity desktop types.
Compatible specimen outer diameter: ⌀30 to 60

Applicable common parts
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

/V2 V-block B ⌀60 to 120 for medium capacity

/V2 V-block B ⌀60 to 120 for medium capacity

V block for mounting test specimens with XYZ stage caster stand (/B3a or /B3b).
Compatible test specimen outer diameter: ⌀60–120

Common parts
Same as /B3a and /B3b.

/V3 V Block C ⌀100 to 150 for medium capacity

/V3 V Block C ⌀100 to 150 for medium capacity

V-block for mounting test specimens with XYZ stage caster stand (/B3a or /B3b).
Compatible test specimen outer diameter: ⌀100–150

Common parts for
/B3a and /B3b are the same.

/L1 L-shaped jig 1 for small capacity

/L1 L-shaped jig 1 for small capacity

Used in combination with the L-shaped base (/B2) for small capacities. It allows for highly reproducible centering, such as when repeatedly testing the same model. The specimen is attached via the included faceplate.
※Machining of the faceplate is the customer's responsibility, but we can also perform machining upon request. (Quoted separately)
For small capacity desktop types.
L-shaped spigot inner diameter: ⌀50H7
Center height: 130 mm

Applicable common parts
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

L-shaped fixture for medium capacity use

L-shaped fixture for medium capacity use

Used in combination with a large stand with casters (/B4) and a slide base (/S3) for medium and large capacities. It allows for highly reproducible centering, such as when repeatedly testing the same model.
The specimen is attached via the included faceplate.
*Machining of the faceplate is the customer's responsibility, but we can also perform machining upon request. (Separate quotation required)
For medium and large capacity stand types.
L-shaped spigot inner diameter: ⌀62H7
Center height: 140 mm

Applicable common parts
82T24 to 82T25, 82R15, 82R25
82M14 to 82M25, 84R15, 84R25
84T24 to 84T25, 85R15, 85R25
84M24 to 84M25
85T14 to 85T25
85M14 to 85M25

E1 Encoder

With the exception of some, the torque ripple and cogging torque detectors can measure rotation angles and sample angles in increments of 0.1°.

* Manual (N) - In continuous time-series measurements, angle measurement is possible within the rotational speed range of the MT detector. However, for angle measurement (angle samples) only, the rotational speed range is from the lower limit of the MT detector to 5 r/min. Additionally, if there is resonance within the rotational speed range, angle measurement (angle samples) may not be possible, and it will be necessary to change the rotational speed for measurement.

  • L3 cable length 3 m

    MT-TS between
    torque signal cable: 3 m
    rotation signal cable: 3 m
    control amplifier cable: 3 m
    AC power cable for MT: 1.9 m

  • L5 cable length 5 m

    MT-TS
    Torque signal cable: 5 m
    Rotation signal cable: 5 m
    Control amplifier cable: 5 m
    Power supply AC cable for MT: 1.9 m

  • /LX cable length X m
    (custom order)

    We will manufacture the signal cable at the length of X m as per your request.
    However, there are limitations on the length we can accommodate due to torque capacity.
    Please consult us separately.
    Also, please note that it is not CE compliant.

  • /GY Cable length Y m
    (Custom order: Power cable for overseas use)

    We will manufacture the signal cable to the requested length of Y m.
    However, there are limitations on the length we can accommodate due to torque capacity.
    The power cable will be compatible with international specifications.
    However, it may not be possible to accommodate certain power standards.
    Please consult us separately.
    Note that it will not be CE compliant.

Individual Support Option

MT-0100 series Calibrator for quick checking at site

MT-0100 series Calibrator for quick checking at site

Various types from 50 mN·m to 20 N·m.

Calibration accuracy:
±0.5 % : For 50 mN·m to 200 mN·m
±0.4 % : For 500 mN·m to 20 N·m
This is a calibration kit for checking torque values on-site.

*The weights for the MT-0100 series are not RoHS compliant.
Compliant products will be quoted separately.

Voltage and Current Detector (made to order)

Voltage and Current Detector (made to order)

For DC measurement: Install and use between the motor and power supply

Voltage: DC 50 V
(You can specify either 30 V, 60 V, or 100 V at the time of order)
･ For 2 A
･ For 10 A
･ For 30 A
･ For 50 A
･ For 100 A
･ For 200 A

Brake Control Amplifier

Brake Control Amplifier

It is required when using a custom large-capacity detector

When combined with the TS-8700, it is necessary to attach the TS-0875 (optional) to the TS-8700.

Case Studies

Examples of the use of torque detectors and torque stations.

Examples of the use of torque detectors and torque stations.

Microtech Laboratory Co., Ltd.

In direct drive motors that output low rotation to high torque, we reduce the cogging torque that becomes a bottleneck and achieve high-precision operation.

Inquire about this product.

Download

Instruction Manuals

最終更新日:2026/9/25