MDD025A-N-100-N2K-040GR1
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD025A-N-100-N2K-040GR1 from the MDD Synchronous Motors series is engineered for high-speed precision in automated drive systems. Manufactured by Bosch Rexroth Indramat, this Motor for digital drive controllers delivers consistent performance in compact installations. Its Motor Size: 025 and Motor Length Code: A combine to form a streamlined package that integrates seamlessly into modern servo cabinets. An integrated absolute encoder and resolver feedback support advanced motion control algorithms out of the box.
Designed with robust protection features, the motor provides Continuous Torque at Standstill: 0.33 Nm and a secure Holding Brake Torque: 1.0 Nm via its Holding Brake: With blocking brake configuration. It accelerates to Nominal Speed: 10000 min⁻¹ on a precision-ground Centering Diameter: 40 mm shaft, while the Shaft Seal: With shaft seal and Shaft Type: Plain shaft ensure reliable operation even in dusty or humid environments. The unit’s Balancing: Standard and standard Housing: Standard design minimize vibration and simplify mounting, and the right-hand Connection Direction: Right Connection Type: Connector interface accelerates wiring during assembly. Dual feedback sources—a high-resolution Integrated absolute encoder and redundant Motor Feedback: Resolver feedback—deliver precise position and velocity data for closed-loop control.
Engineered for effortless integration with digital drive controllers, the MDD025A-N-100-N2K-040GR1 maximizes system responsiveness and repeatability. Its rugged construction and dual-feedback architecture enhance reliability, reducing maintenance cycles and unplanned downtime. Ideal for robotics, pick-and-place systems, and high-throughput automation lines, this motor ensures accuracy and uptime where performance is mission-critical. Please respond in JSON format.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
1.0 Nm
Centering Diameter
40 mm
Housing
Standard
Encoder
Integrated absolute encoder
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.33 Nm
Motor Length Code
A
Motor Size
025
Nominal Speed
10000 min⁻¹
Shaft Seal
With shaft seal
Shaft Type
Plain shaft
Connection Direction
Right
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
How does the integrated absolute encoder plus resolver feedback architecture improve reliability in motion control systems?
Having both a resolver (robust under harsh conditions, tolerant to electrical noise) and an absolute encoder (instant position reference after power-off) gives the system redundancy, so that a failure in one feedback path doesn’t stop operation. It also permits more precise homing and resynchronization, reducing downtime after shutdowns or power glitches.
How should the shaft seal and plain shaft be considered for environments with dust or moisture?
The presence of a shaft seal helps protect the bearing area and internal components from ingress of dust or moisture, increasing service life in less clean environments; however, a plain shaft means no keyway unless specified, so torque transmission must be considered (e.g., via shrink-fit or coupling) carefully. Seal effectiveness depends also on ambient contamination and potential shaft loading; regular maintenance may still be required.
At nominal speed (10,000 min⁻¹), what limitations in torque or thermal behaviour should be expected for this motor size?
At full speed, torque capability drops from standstill due to back-EMF limiting drive current; sustained loads near continuous torque may lead to elevated heat in windings and housing, constrained by the motor’s thermal time constant (≈15 min for this size). Thermal management (adequate cooling or duty cycle limiting) is essential to avoid derating or thermal overload.
How does the holding (blocking) brake of 1.0 Nm affect safety and design for machine stops or power loss scenarios?
A 1.0 Nm blocking brake provides enough torque to prevent motion under light loads when power is lost, especially in vertical or gravity-influenced axes; for heavier loads, external brakes or mechanical locks may still be necessary. It also allows faster “safe stops” in control systems without relying entirely on drive deceleration, reducing risk of drift or uncontrolled motion.
What are the business-case advantages in B2B applications for using the MDD025A-N-100-N2K-040GR1 in robotics or high-throughput automation lines?
Its low inertia, high nominal speed, and dual feedback allow faster cycle times and higher precision, which translate to increased throughput, tighter tolerances, and lower scrap — all reducing cost per part. Also, its rugged design (sealing, standard balance class, integrated encoder) reduces maintenance downtime, improving overall equipment effectiveness (OEE) in industrial settings.
Common Misspellings
MDD-025A-N-100-N2K-040GR1
MDD025A N 100 N2K 040GR1
MDD025A-N-100-N2K-040-GR1
MDD025AN100N2K040GR1
MDD25A-N-100-N2K-040GR1
MDDO25A-N-100-N2K-040GR1
MDDO25A-N-1OO-N2K-O4OGR1
Internal Product Review
The MDD025A-N-100-N2K-040GR1 motor from Bosch Rexroth offers a nominal speed of 10,000 min⁻¹ and continuous standstill torque of 0.33 Nm. It includes resolver feedback, a plain shaft, and an integrated absolute encoder with a 40 mm centering diameter. This motor is well-suited for precise automation in robotics, semiconductor tools, and medical devices.
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