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Motor torque detector MT series

High-performance motors including ultra-precision motors are used in various fields. Many different types of motors are used in versatile applications, such as ultra-high-speed motors used in home appliances, low-speed motors used in OA equipment and AV equipment, and ultrasonic motors

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 motor, for large capacity motor, for torque ripple, and for cogging torque.

Further, the MT series with the compact high-rigidity torque detector RH series have been added.
The RH type torque detector (10 Nm / 20 Nm) is a torque detector that achieves high accuracy (± 0.05% F.S.) and high rigidity (4.5 times that of our existing models). It enables to measure torque fluctuations of motors in a higher frequency range with higher accuracy.

* TS-8700 Torque Station Pro is required for motor characteristics measurement separately in addition to the MT series detector.

Overview Specification

MT series Common Specifications
Torque detection methodMT-8M :Electromagnetic gear type phase difference method
MT-8 T :Electromagnetic induction phase difference method
MT-8 R :Strain gauge detection method
Bearing methodBall bearing type
Torque measurement accuracy

±0.2 %/F.S.
±0.05 %/F.S. (MT-8R)
±0.1 %/F.S. (some models of MT-8T(with TH detector))
**: When combined with TS-8700/7700B, after N-0 compensation. 1 second averaged value.
The influences below are excluded.
- fluctuation components generated from the system components
- resonance components including the target

Motor power supplyNot included motor power supply
Power requirementMT-8M: AC100 to 240 V ±10% 50/60Hz
MT-8T: AC100 V ±10% 50/60Hz
MT-8R: AC100 to 240 V ±10% 50/60Hz
Power consumptionMT-8M  : small capacity: approx. 20 VA or less / large capacity: approx. 38 VA or less
MT-8T  : small capacity: approx. 6 VA or less / large capacity: approx. 7 VA or less
MT-8R  : approx. 44 VA or less
Isolation resistance10 MΩ or more (rated voltage: DC 500 V)
Withstand voltageAC 1500 V for 1 minutes
Temperature/humidity

Operating temperature range: +0 to +40 ℃
Operating humidity range: +30 to +80 %RH(with no condensation)
Storage temperature range: −10 to +50 ℃
Storage humidity range: +30 to +80 %RH(with no condensation)

Altitude condition etc.

Pollution degree: 2
Max. altitude: 2000 m(only for MT-8T/R)
Max. altitude:1000 m(MT-8M)
With no condensation, with no corrosive gas

Conforming standard

RoHS Directive, CE marking, FCC (CE marking(FCC : MT-8T(only for MT series with TH))

CE markingLow 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
FCCCRF47 Part15 Subpart B class A
Braking abilityCan be used within the shaded area in the figure below
 

* 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

MT-82 M/T/R Torque ripple/cogging torque measurement

MT-82 M/T/R Torque ripple/cogging torque measurement

 
  • This model is suitable for torque ripple measurement in the state of motor excitation, and cogging torque measurement in the state of non-excitation motor.
    Control and measurement are performed at intervals below.
  • MT-82M: 0.5 to 5 r/min
    MT-82T: 2 to 15 r/min (excluding some models)
Measurement itemTorque, rotation speed, rotation angle*, current*, voltage* (*:option)
WeightVaries depending on the model.

*It may be affected by the fluctuation component caused by the equipment component and the resonance component including the target to be tested.
Details will be decided after the meeting.

SeriesID codeTorque
(N(m)
Rotation speed range
(r/min)
Torque measurement accuracy
(%/FS)
Standard type with MD/SS (successor of
MT-6200B series)
82M210.0020.5to5±0.2
82M510.0050.5to5±0.2
82M120.010.5to5±0.2
82M220.020.5to5±0.2
82M520.050.5to5±0.2
82M130.10.5to5±0.2
82M230.20.5to5±0.2
82M530.50.5to5±0.2
82M1410.5to5±0.2
82M2420.5to5±0.2
82M5450.5to5±0.2
82M15100.5to5±0.2
82M25200.5to5±0.2
High performance type with TH (successor of
MT-6200B series)
82T520.052to15±0.2
82T130.12to15±0.2
82T230.22to15±0.2
82T530.52to15±0.2
82T1412to15±0.2
82T2422to15±0.1
82T5452to15±0.1
82T15100.5to5±0.1
82T25200.5to5±0.1
High accuracy type with RH82R15100.5to5±0.05
82R25200.5to5±0.05

MT-84 M/T/R TN/TI characteristics measurement with hysteresis brake

MT-84 M/T/R Hysteresis brake type

 
  • Suitable for measurement of high speed rotating motor.
  • Rotation speed of the motor and torque characteristics are automatically measured in combination with the TS-8700 Torque Station Pro.
  • Controls torque and rotation speed, can be used for AC motor measurement, DC motor measurement.
Measurement itemTorque, rotation speed, current*, voltage*(*:option)
WeightVaries depending on the model.

*Cannot be measured in no-load condition due to the idling torque on the brake.
*It may be affected by the fluctuation component caused by the equipment component and the resonance component including the target to be tested.
   Details will be decided after the meeting.

SeriesID codeTorque
(N(m)
Braking capability
(W)
Rotation speed range
(r/min)
Torque measurement accuracy
(%/FS)
Standard type with MD/SS (successor of
MT-6200B series)
84M220.025100 to 20,000±0.2
84M520.058100 to 20,000±0.2
84M130.112100 to 20,000±0.2
84M230.223100 to 15,000±0.2
84M530.575100 to 12,000±0.2
84M14175100 to 12,000±0.2
84M242160100 to 10,000±0.2
84M545200100 to 10,000±0.2
84M1510350100 to 7,000±0.2
84M2520600100 to 7,000±0.2
High performance type with TH (successor of
MT-6200B series)
84T220.025100 to 9,000±0.2
84T520.058100 to 11,000±0.2
84T130.112100 to 20,000±0.2
84T230.223100 to 15,000±0.2
84T530.575100 to 12,000±0.2
84T14175100 to 12,000±0.2
84T242160100 to 10,000±0.1
84T545200100 to 10,000±0.1
84T1510350100 to 7,000±0.1
84T2520600100 to 7,000±0.1
High accuracy type with RH84R1510350100 to 7,000±0.05
84R2520600100 to 7,000±0.05

*Cannot be measured in no-load condition due to the idling torque on the brake.

MT-85 M/T/R TN/TI characteristics measurement with powder brake

MT-85 M/T/R Powder brake type

 
  • Suitable for measurement of large capacity and low speed rotating motor, such as a motor with gear.
  • Rotation speed of the motor and torque characteristics are automatically measured in combination with the TS-8700 Torque Station Pro.
Measurement itemTorque, rotation speed, current*, voltage*(*:option)
WeightVaries depending on the model.

*Cannot be measured in no-load condition due to the idling torque on the brake.
*It may be affected by the fluctuation component caused by the equipment component and the resonance component including the target to be tested.
 Details will be decided after the meeting.
*Please consult us for a detector for large torque capacity (made-to-order) .

 

SeriesID codeTorque
(N(m)
Braking capability
(W)
Rotation speed range
(r/min)
Torque measurement accuracy
%/FS
Standard type with SS (successor of MT- 6500B series)85M141205to1,800±0.2
85M242505to1,800±0.2
85M5451305to1,800±0.2
85M15103205to1,800±0.2
85M25204505to1,800±0.2
High performance type with TH
(successor of MT-6500B series)
85T141205to1,800±0.1
85T242505to1,800±0.1
85T5451305to1,800±0.1
85T15103205to1,800±0.1
85T25204505to1,800±0.1
High accuracy type with RH85R15103205to1,800±0.05
85R25204505to1,800±0.05

Option (ordered with ID cord)

/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 MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

 

/B2 L-shaped base for small capacity

 

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

Applicable MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14


 

/B3a Stand with XYZ stage and casters for medium capacity

 

Base to attach a target with XYZ stage +V block (/V2 or /V3) .Used for medium capacity torque measurement. Stand type.


Table surface :200 mm
X (Rotation axis perpendicular horizontal direction) :±10 mm
Y (Rotation axis horizontal back

    and forth direction) :±20 mm
Z (Vertical direction) : 70 mm
Load capacity : 5 kg

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

 

/B3b Stand with XYZ stage and casters for small capacity +Center height adjustment plate+blinding plate

 

Stand to measure small capacity torque with V block (/V2 or /V3). MT series torque detector will be mounted on the stand . Specification of stand(XYZ stage: Same to /B3a.

Applicable MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

 

/B4 Large stand with casters for medium & large capacity

 

Stand to measure medium and large capacity torque with slide base(/S3)and L-shaped jig(/L2). MT series torque detector will be mounted on the stand.


Applicable MT series
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

 

XYZ stage to support measurement of small torque capacity. Desktop type.

Table surface: 80 mm
X(Rotation axis perpendicular horizontal direction):±12.5 mm
Y(Rotation axis horizontal back

    and forth direction) :±12.5 mm
Z(Vertical directions) : 45 mm
Load capacity : 3 kg

Applicable MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14


 

/S3 L-shaped jig slide base for medium & large capacity

 

Slide base used for the measurement using L-shaped jig (/L2) on the large stand with casters


Sliding amount of L-shaped metal fixture : 330 mm (Length from end to end. Actual sliding amount depends on the L-shaped metal fixture to be placed.)


 

/V1 V block A for small capacity Φ30 to 60

 

V block used for the measurement of small capacity torque using XYZ stage (/X1) . Desktop type.


Applicable MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

 

/V2 V block B for medium capacity Φ60 to 120

 

V block used for the torque measurement using a stand with XYZ stage (/X1) and casters (/B3a or /B3b).
Outer diameter range of a target:Φ60 to 120


Applicable MT series
Same as /B3a and /B3b

 

/V3 V block C for medium capacity Φ100 to 150

 

V block used for the torque measurement using a stand with XYZ stage (/X1) and casters (/B3a or /B3b).
Outer diameter range of a target:Φ100 to 150


Applicable MT series
Same as /B3a and /B3b


 

/L1 L-shaped jig for small capacity

 

For small capacityz
Used with L-shaped base (/B2). Desktop type. The target is attached via the surface plate provided as standard. Helps reproducible centering, when testing the same model many times etc.
*Processing to a surface plate by Ono Sokki: offered for a fee Please contact your nearest distributor for more details.
L-shaped inner diameter of in-low section: Φ50H7
Center height: 130 mm


Applicable MT series
82T52 to 82T14
82M21 to 82M53
84T22 to 84T14
84M22 to 84M14

 

/L2 L-shaped jig for medium capacity

 

For medium & large capacity

Used with Large stand with casters (/B4) to measure medium or large capacity torque. The target is attached via the surface plate provided as standard. Helps reproducible centering, when testing the same model many times etc.
*Processing to a surface plate by Ono Sokki: offered for a fee Please contact your nearest distributor for more details
L-shaped inner diameter of in-low section: Φ62H7
Center height: 140 mm


Applicable MT series
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

Detectors for torque ripple and cogging torque (except for some torque detectors). Rotation angle measurement and angle sampling can be performed in 0.1 degree steps.

* Rotation speed range : from lower limit speed of the MT detector to 5 r / min If the resonance will be occurred in the rotation speed range, it may not measure the angle (angle sample). In that case, the rotation speed should be changed.


 

/L3 Cable length 3 m

Cable for between MT and TS
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

Cable for between MT and TS
Torque signal cable : 5 m
Rotation signal cable : 5 m
Control amplifier cable : 5 m
AC power cable for MT : 1.9 m

 

product_midasiao”>/LX Cable length X m(made to order)

Made-to-order cable with the length a customer requests.
*The length supported depends on the torque capacity. Please consult us for more details.
*Not applicable to CE marking

 

/GY Cable length Y m(made to order:worldwide type cable)

Made-to-order cable with the length a customer requests (for overseas specification)
*The length supported depends on the torque capacity. Please consult us for more details.
* Depending on the required power supply standard, it may not be possible to respond. Please consult us for more details.
*Not applicable to CE marking

Option (corresponding to each product)

MT-0100 series (calibrator for quick checking at site)

MT-0100 series

■ Calibration for detectors range: from 50 mN·m to 20 N·m
■ Calibration accuracy:
±0.5 %; detectors for 50 mN·m to200 mN·m
±0.4 %; detectors for 500 mN·m to 20 N·m
Calibration set to check the torque value at site.

MT-071 series (for current voltage measurement)

イラスト(外部電流電圧検出器)

■ For DC measurement:Used to set between a motor and a power supply device.
■ Voltage: 50 V
MT-0712: for 30A
MT-0713: for 50A
MT-0715: for 100A
MT-0717: for 200A
Made to order: for 2A/10 A

Brake Control Amplifier

Brake Control Amplifier

■ Required when large capacity type made-to-order detector is used.

■ TS-0875 (option) is required to attach to the TS-8700 when used with the TS-8700.