MDD021A
Call to check stockA · 173 mm0.15 Nm reference torque · 1 kg
Family → Series → Individual model
Indramat MDD motor models
MDD model letters identify separate motor-length and torque packages inside each frame. Start with the three-digit series and length letter, then use the complete type code to confirm speed, feedback, shaft, brake and centering options.
Product familyMDD
Match the complete nameplate, including every suffix. Ask Litco for current photos of the unit being quoted.
Small digital AC servo-motor frame for compact, high-speed auxiliary and positioning axes. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD021B
Call to check stockB · 213 mm0.3 Nm reference torque · 1.3 kg
Small high-speed MDD frame with three motor lengths for compact servo applications. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD025A
Call to check stockA · 182 mm0.33 Nm reference torque · 1.5 kg
MDD025B
Call to check stockB · 219 mm0.6 Nm reference torque · 2 kg
MDD025C
Call to check stockC · 257 mm0.9 Nm reference torque · 2.5 kg
Compact MDD frame with three motor lengths and a published 10,000-rpm nominal-speed configuration. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD041A
Call to check stockA · 178 mm0.64 Nm reference torque · 2.8 kg
MDD041B
Call to check stockB · 208 mm1.35 Nm reference torque · 3.7 kg
MDD041C
Call to check stockC · 238 mm2.05 Nm reference torque · 4.6 kg
High-dynamic MDD servo-motor frame with four length packages and 4,000- or 6,000-rpm published speed choices. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD065A
Call to check stockA · 163 mm0.8 Nm reference torque · 3.2 kg
MDD065B
Call to check stockB · 178 mm1.5 Nm reference torque · 3.9 kg
MDD065C
Call to check stockC · 193 mm2.1 Nm reference torque · 4.6 kg
MDD065D
Call to check stockD · 208 mm2.7 Nm reference torque · 5.3 kg
High-dynamic MDD frame with three motor lengths and three published nominal-speed choices. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD071A
Call to check stockA · 208 mm2.2 Nm reference torque · 6.5 kg
MDD071B
Call to check stockB · 248 mm4.4 Nm reference torque · 8.8 kg
MDD071C
Call to check stockC · 288 mm6.6 Nm reference torque · 11 kg
Precision-oriented MDD frame with three motor lengths and 2,000-, 3,000- or 4,000-rpm published configurations. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD090A
Call to check stockA · 275 mm3.7 Nm reference torque · 12.5 kg
MDD090B
Call to check stockB · 340 mm7.2 Nm reference torque · 18 kg
MDD090C
Call to check stockC · 405 mm10.4 Nm reference torque · 23 kg
High-power-density MDD frame offered in four motor lengths and a broad nominal-speed range. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD093A
Call to check stockA · 286 mm9.2 Nm reference torque · 13 kg
MDD093B
Call to check stockB · 327 mm14.5 Nm reference torque · 16.5 kg
MDD093C
Call to check stockC · 386 mm19.5 Nm reference torque · 22 kg
MDD093D
Call to check stockD · 436 mm24 Nm reference torque · 28 kg
Large precision MDD frame with four motor lengths, multiple speed windings and natural- or surface-cooled configurations. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD112A
Call to check stockA · 312 mm10.5 Nm reference torque · 25 kg
MDD112B
Call to check stockB · 387 mm17.5 Nm reference torque · 36 kg
MDD112C
Call to check stockC · 462 mm28 Nm reference torque · 48 kg
MDD112D
Call to check stockD · 537 mm38 Nm reference torque · 59 kg
Large high-torque MDD frame with four motor lengths for demanding production and transfer axes. The choices shown are published at series level; confirm the exact combination from the complete type code.
MDD115A
Call to check stockA · 358 mm28 Nm reference torque · 33 kg
MDD115B
Call to check stockB · 408 mm38 Nm reference torque · 41 kg
MDD115C
Call to check stockC · 458 mm47 Nm reference torque · 52 kg
MDD115D
Call to check stockD · 508 mm57 Nm reference torque · 60 kg
MDD model directory
Choose the motor length printed after the frame
The A, B, C or D suffix is part of the model identity, not a minor option. Later letters generally indicate a longer motor and a larger torque package within the same frame, but the complete nameplate remains necessary because winding, cooling, feedback, centering, shaft and brake choices can still differ.
Match the complete code
Call to check stock. We confirm the exact suffix, condition and lead time before quoting a replacement.
Motor nameplate guide
MDD nameplate guide
Fields that separate one MDD motor from another
The model page identifies the frame and length. A complete tag photo supplies the remaining housing, winding-speed, feedback and mechanical fields needed for a dependable match.
Complete type code
Capture the full MDD designation, including housing, speed, balance, feedback, centering, shaft, connector and brake fields.
Frame and motor length
The three-digit frame and A, B, C or D length identify a model-level torque package, not a complete interchangeable motor.
Housing and nominal speed
Natural- or surface-cooled housing and the winding-speed code affect ratings, cooling hardware and the installed machine envelope.
Digital feedback
Digital servo feedback and multiturn absolute-encoder choices must remain compatible with the connected digital drive.
Centering and shaft
Centering diameter, plain or keyed shaft, shaft seal and optional side-B details must match the mechanical interface.
Connector and brake
Record power-connector direction and blocking-brake choice; similar MDD housings can carry different mechanical and electrical options.
Have the complete MDD tag?Use the model and series pages to understand the hierarchy, then send every type-code field for a current shelf, condition and compatibility check.
MDD motor questions
Before Litco checks a unit
These answers cover the identification details that most often slow down a legacy motor match.
Is the MDD model number enough to match a motor?+
No. A model such as MDD112C fixes the frame and motor-length package, but housing, nominal speed, feedback, centering, shaft, connector and blocking-brake fields remain in the full type code.
What should I send for an MDD shelf check?+
Send a straight-on nameplate photo, the complete motor, shaft and flange, plus power and feedback connections. Include the connected drive, machine axis and failure symptoms when repair is being considered.
How do I check whether an MDD is ready to ship?+
Call with the complete part number. Litco confirms the current physical unit, full suffix, condition, price and lead time before quoting.
Can Litco evaluate a failed MDD motor?+
Yes. Litco can compare repair, replacement and exchange paths after reviewing the full code, connected drive, machine context and motor condition.
Technical source
Open The MDD Planning Manual ↗Model groups and option fields checked against the original planning manual.
Manual values describe available series configurations, not proof that every option can be combined or is currently on Litco’s shelf.
Get a replacement or repair quote.
Call to check stock, condition and lead time. Your part number carries into the form.