Bosch Rexroth Indramat MDD112C-N-030-N2L-130GA0 – High‑dynamic AC Servo Motor for DDS/DIAX Drive Systems

The MDD112C series is one of those classic Indramat digital AC servomotors that still shows up in demanding machinery because it’s quick, precise, and tough. The -030 winding typically targets 3000 rpm rated speed, which makes this variant a solid fit for fast indexing stations, packaging axes, pick-and-place gantries, and retrofit CNC feeds where you need sharp acceleration without a big footprint. From my experience, these 112‑frame motors pair smoothly with Rexroth DDS/DIAX controllers and deliver very predictable servo tuning.

Order Placement Process and Guarantees

• Warranty: 365 days coverage
• Dispatch: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment, balance before delivery
• Express options: FedEx, UPS, DHL

Key Features

• High dynamic response – Low rotor inertia and matched windings let axes ramp up and brake quickly, helpful for short-cycle automation.
• Compact 112 frame, length C – A practical size for retrofits; typically drops into many DIN-flange cabinets without reworking the machine bed.
• Integrated digital motor feedback – The -130G feedback option is designed for Rexroth DDS/DIAX drives, keeping position data stable and startup straightforward.
• Robust IP65-ready design – Sealed housing resists dust and coolant splash in most shop-floor environments when installed with matching connectors.
• Plain, reliable power and feedback connectors – You might notice that cable handling is simple, which helps during maintenance or quick swaps.
• Rated speed class 3000 rpm (typical for “030”) – Good balance of torque and speed for general-purpose servo axes.

Technical Specifications

Related & Supporting Products

• Rexroth DDS drive controllers (e.g., DDS02.1, DDS03.1) – Native pairing for MDD motors; quick commissioning with –130G feedback.
• Rexroth DIAX/Ecodrive power supplies and drive modules – Provide DC bus and axis control for multi‑axis racks.
• Alternative motors: MDD112B (shorter length), MHD112C (heavier-duty series), MSK101D (newer IndraDyn S) – Differences in torque density, encoder systems, and connectivity.
• Cables & connectors: Rexroth motor power and feedback cables matched to MDD112 (straight or angled backshells for tight cabinets).

Installation & Maintenance

• Mounting & alignment – Use the specified flange and centering fit; align the shaft carefully to avoid bearing preload. In many cases, a laser or dial indicator cut setup time by half.
• Cabinet & ventilation – Ensure the drive cabinet has adequate airflow and that the motor has free ambient air; avoid thermal pockets around the motor body.
• Wiring – Route power and feedback separately to reduce noise. Shield and ground per Rexroth’s EMC practice; use the correct keyed connectors for IP integrity.
• Safety – Lock out power before connecting cables. If a holding brake is present, verify its release/engage sequence through the drive before jogging the axis.
• Routine checks – Inspect connector seals, clean fins, and check for coolant/oil ingress. Feedback connectors benefit from a quick contact clean every 6–12 months in oily environments.
• Firmware & tuning – Keep the DDS/DIAX drive firmware at a supported level and back up parameter sets. You might notice that a fresh autotune after mechanical changes restores the crisp positioning these motors are known for.

Quality & Certifications

• Manufacturer compliance: CE marking; UL/CSA recognition typically available for the MDD series
• RoHS: many later-production units comply; legacy stock may vary by date code
• Warranty: 365 days from our side; original Rexroth terms apply if supplied new from factory