Full-scale
MDS - 13 series

MICROTECH LABORATORY INC.

The world’s smallest direct drive motor.
Perfect for light work gripper such as electronic part.
MDS-13■■

Body diameter: φ13 mmBody length: 26/32/38 mm
Max torque: 7/15/25 mN・m■

Max speed: 3000 rpm■

Max resolution: 11 bit

φ2.6
MDS/MDH-20

MDS/MDH - 20 series
The smallest through-shaft servomotor in the world.
Perfect for end effector (hand, gripper, Zθ unit) with through-shaft.
It could be used for small hand in combination with low
slowdown rate gear.
■■

φ4MDS/MDH-30

μDD Motor Product guide

Body diameter: φ21 mmBody length: 32/38/44 mm
Max torque: 40/90/130 mN・m■

Max speed: 3000 rpm■

Max resolution: 288,000 P/R（Multiplied by 4）, 18 bit■

Hollow diameter: φ2.6 mm (MDH type)

MDS/MDH - 30 series

Perfect for highly-precise dispenser andsmall gimbal driving.
■

φ12Body diameter: φ30 mm
Body length: 32/38/44 mm■

Max torque: 140/280/420 mN・m■

Max speed: 1000 rpm■

Max resolution: 432,000 P/R（Multiplied by 4）, 19 bit■

Hollow diameter: φ4 mm (MDH type)-40MDH（12）MDH（12）- 40 series

Series of MDH-40 with larger internal diameter.
Internal diameter of φ12mm allows passing cableand laser etc.
■

Body diameter: φ40 mm
Body length: 32/38/44 mm■

Max torque: 0.33/0.70/1.0 N・m■

Max speed: 450 rpm■

Max resolution: 1,296,000 P/R（Multiplied by 4）■

Hollow diameter: φ12 mm (MDH type)

MDH - 60 series

Small-sized large bore hollow shaft.
Perfect for end effector and robot joint etc.

φ20MDH-60■

Body diameter: φ60 mm
Body length: 32/38/44 mm■

Max torque: 1.1/2.1/2.7 N・m■

Max speed: 300 rpm

Max resolution: 2,000,000 P/R（Multiplied by 4）, 20 bit■■

Hollow diameter: φ20 mm

MDH - 70 series

Small-sized large diameter hollow shaft.
Perfect for index table, replacement of rotary actuator,robot (corresponds to elbow and shoulder)■

Body diameter: φ70 mm
Body length: 32/38/44 mm■

Max torque: 1.0/2.2/3.1 N・m■

Max speed: 200 rpm

Max resolution: 2,592,000 P/R（Multiplied by 4）, 21 bit■■

Hollow diameter: φ25 mm

φ25MDH-70

MICROTECH LABORATORY INC.

■Head office: 8-1-46 Honcho, Kamitsuruma, minami-ku Sagamihara-shi Kanagawa 252-0318, Japan
PHONE.81-42-746-0123 FAX.81-42-746-0960

https://motor.mtl.co.jp/english/202208EN̲B1

MICROTECH LABORATORY INC.

µDD Motor series

MICROTECH LABORATORY INC.

Motor Details Page

φ13mm

φ21mm

φ30mm

φ40mm

φ60mm

φ70mm

MDS - 13 series

MDS/MDH - 20 series

MDS/MDH - 30 series

MDH（12）- 40 series

MDH - 60 series

MDH - 70 series

Smallest DD Motor in the World

Smallest Hollow-shaft Motor in the World

suitable for lightwork grippers androbot hands.

Perfectly work for Robot Hands/Grippers with Zθ unit.

Perfectly work for high precision dispencer andgimbal drives.
Hole tap inside is customable.

“LESS SPACE” because the hollow shaft
can be used to pass cables and laser beam.

(Multifunction ) product that can beapplied in various ways such as
End Effector,index drive shaft,robot joints, etc.

suitable for indexing table,
hollow geared motor replacement
and robot arms.

Inventory status

High-precision Options

High Torque Options

Hollow-shaft Options

Customization Examples

Standard features

Standard features

Standard features■Encoder resolution is changeable■Precisely built with high resolving power and accuracy inthe started at 1arc sec.
Available in inceremental and absolute.

■World’s smallest rotary encoder designed by our expert.
SMALL but HIGH DENSITY and ACCURACY.
3TIMES faster than conventional AC servo Motors.

■Hollow shaft outer diameter is available up to 30%.

■Hollow shaft expansion■Built in angular bearing and deep groove bearing make it
extremely durable and can handle high direct load.

■Hollow shaft taps is customable by request.
rotary joints directly connected and cables or air tubes can passthrough without touching the ends of hollow shaft.

High Torque Options■low-speed gears design and compact with back driveability,
low inertia and reduction ratios by 1/3 and 1/9.

Upgrade Options■Torque diameter is expandable up to φ70 or more.

■Based on encoder type, rotation accuracy and maximum
rotation speed can be improved.

■Flangeless structure for motor cases

Hollow shaft optimization options■Hollow inner diameter is customable.
■Shaft can be designed as request.
Shaft is customable as request.

■Customable hole tap■Cable extension and connector■Support for low dust-generation■Output shaft structure change(Change to pinion gear, positioning pin addition,knurling, alumite aluminum, etc.)■Built-in motors■IP improvement■High precision enablling shaft runout of ±5µm can beachieved.

■Customable Vacuum■Cross roller bearing improve shaft rigidity,pursuing highprecision and NRRO.
■Built in Flange mounting is changeable to freestanding
type.

■ Collaboration
amplifiers

To meet your needs of specification, we accept customization even justone unit. Feel free to contact us.
Customization pageCatalog
Download pageLow-speed Gears page

Drive µDD motors with a conventional system
We offer various conversion cables

Super-compact with hollow shaft
We have shafts with super-compact outer diametersof φ21-70 that are also hollow all the way through.
(φ2.6-25mm)
Compressed air tubes, laser beams, and more canpass through hollow shafts, enabling smaller andfaster-acting end effectors.

Customization page

■ MTL Drivers
Specialized compact drivers for researchers and engineers■ CablesWe can provide you extension cables and conversion

Compatible with all µDD motor types
Pulse stream, analog voltage, SPI communication
We offer various optional cables

Product and inventory status■ Die bonders, chip mounters,

A6 Family

chip conveyors, bonding devices,laminators, test handlers, etc.

Advantages■ Hollow shafts

Product Details page

■ Devices and mechanical units
We propose devices and mechanical units that use µDD motors(Cables, compressed air tubes, laser beams, ball screws, or spline shafts can pass through)■ Compact and efficient■ High-precision positioning,high speed precision and torque accuracy■ Compliance control, high back-drivability■ Low-speed, high-torque drive, speed ripple reduction■ Less noise great performance

We also have another collaboration amplifier available.
Feel free to contact us for support.

Product Details page・・MINAS is a registered trademark of Panasonic Holdings Corporation. ・ Realtime Express and RTEX are registered trademarks of Panasonic Holdings Corporation. Realtime Express is a proprietary high speed synchronous motion network developed by our company.
EtherCAT is a registered trademark and patented technology licensed from Beckhoff Automation GmbH of Germany.