MDS-13 series

The world's smallest direct drive motor

It is ideal for a gripper and robot hands for lightweight working such as electronic components.

  • Body diameter:φ13mm
  • Body length:25.4/31.4/37.4mm
  • Max torque :7/15/25mN・m
  • Max speed:3,000rpm
  • Max Resolution:11bit

Outer dimensions




Model L1 dimension
MDS-1306 25.4
MDS-1312 31.4
MDS-1318 37.4
  Unit MDS-1306 MDS-1312 MDS-1318
Input power(driver input) DCV 24
Maximum speed(※1) rpm 3000
Rated speed rpm 3000
Peak torque at stall Nm 0.007 0.015 0.25
Continuous torque at stall Nm 0.003 0.005 0.075
Continuous rated torque Nm 0.003 0.005 0.075
Peak power W 2.0 4.0 8.0
Pake power rate kW/s 4.5 13 27
Peak armatute current Arms 2.6 2.6 2.6
Rated armature current(※2) Arms 1.1 1.0 1.0
Voltage constant V/krpm 0.28 0.61 1.0
Torque constant (at25℃) Nm/Arms 0.0027 0.0058 0.0096
line armature resistance (at25℃) Ω 1.1 1.8 2.5
Line armature inductance mH 0.13 0.21 0.39
Rotor poles P 8
Max encoder resolution(※3) P/R  Absolute:2,048(11bit)
Moment of inertia J g・cm^2 0.11 0.17 0.23
Permissible radial load Fr N 20
Permissible axial load Fa N 10
Allowable moment Nm 0.39 0.50 0.61
Repeated positioning accuracy at shuttling Pulse ±1
Mass kg 0.04 0.05 0.06
Applicable motor driver   MC-200C-7220▢ / MC-200C-6018▢
Standard heat sink   55×55×4 Aluminium

(※1)Please ask us if there is a speed you prefer
(※2)Rated armature current is the value measured with the standard heat sink attached to the motor at an ambient temperature of 40°C.* Only available with the MDS type
(※3)Please ask us if there is a particular resolution you prefer

Examples of speed and torque characteristics


Cable options

Model Connection
CN1cable(4.2)1M-TE Between power and driver(1m)
CN2 bent cable(4.2)0.7M Motor cable:Extension between motor and driver (Total1m)
CN2 bent cable(4.2)2.7M Motor cable:Extension between Motor and Driver(Total3m)
CN2 bent cable(4.2)4.7M Motor cable:Extension between motor and driver(Total5m)
CN3 bent cable(4.2)0.7M Encoder cable : Extension between motor and driver(Total1m)
CN3 bent cable(4.2)2.7M Encoder cable : Extension between motor and driver(Total3m)
CN3 bent cable(4.2)4.7M Encoder cable : Extension between motor and driver(計5m)
CN5 cable USB2,0 cable with ferrite core : Between PC and driver(1m)

※Please prepare the CN4 connector cable of the MC-200 by the user.
※MC-200C CN1/CN4 connector cable and CN2/CN3 conversion connector cable are included.








After-sales service

How to request repair

About the Warranty coverage

In the event of a failure due to our responsibility, we can repair and replace the product for free within the warranty period.
However, The warranty is by the product,so expenses with parts replacement and compensation for damages(etc) is out of the application of our warranty.

About the case where the warranty does not apply

As a result of inspection, if it is found that the product is not a malfunction but handling or an external influence, you will be charged even during the warranty period.

The warranty period

Within 1 year after the start of use (however, within 1.5 years after delivery).