Description
Rexroth MSK040B-0450-NN-M1-UG1-NNNN Servo Motor Wittenstein Alpha SP075S-MF2-16
This is a Rexroth MSK040B-0450-NN-M1-UG1-NNNN 3-phase permanent magnet synchronous servo motor paired with a Wittenstein Alpha SP 075S-MF2-16-1C1-2S planetary gearbox. The two components are assembled as a single unit with a custom stainless steel vacuum-rated flange, configured for use in vacuum chamber motion control applications. This assembly was removed from a Roll-to-Roll vacuum processing system and is in known working condition.
Specifications & What's Included
- Motor Brand: Rexroth (Bosch Rexroth)
- Motor Model: MSK040B-0450-NN-M1-UG1-NNNN
- MNR (Material Number): R911321001
- Motor Type: 3-Phase Permanent Magnet Synchronous Servo Motor
- Max Speed: 6,000 min⁻¹ (RPM)
- Voltage: 600V AC (Inverter Duty VPWM)
- Back-EMF KE(eff): 77.8 V/1,000 min⁻¹
- Stall Torque Md0 (60K): 1.7 Nm
- Stall Current Id0 60K (eff): 1.5 A
- Brake: 4.0 Nm DC 24V +/–10%, 0.50 A
- Cooling: Natural convection
- Insulation Class: 155 (I.CI.)
- Feedback/Encoder: ECM1
- Enclosure Rating: IP65
- Certifications: UL, cUL, CE
- Country of Manufacture (Motor): Germany
- Motor Date Code: 11W47
- Gearbox Brand: Wittenstein Alpha
- Gearbox Model: SP 075S-MF2-16-1C1-2S
- Gear Ratio: 16:1
- Gearbox Lubrication: Lubricated for Life — Castrol Tribol 800/220
- Gearbox Date Code (DMF): 51/11
- Country of Manufacture (Gearbox): Germany
- Connectors: Two circular multi-pin connectors (power and encoder/feedback) on motor rear
- Mounting: Custom stainless steel vacuum flange with multi-bolt pattern
- Output Shaft: Clamping-style coupling hub visible at flange face
Applications
The Rexroth MSK series are permanent magnet synchronous servo motors designed for precision motion control in industrial automation, and are commonly used with Bosch Rexroth IndraDrive servo drive systems. The MSK040B is a compact, high-torque-density frame suited to applications where space is limited but positioning accuracy and dynamic response are critical. Wittenstein Alpha SP-series planetary gearboxes are a standard pairing with servo motors in this class, reducing output speed and multiplying torque while maintaining the low backlash required for precise positioning. This particular assembly, configured with a stainless steel vacuum-rated flange, is purpose-built for use inside vacuum chambers — a configuration common in Roll-to-Roll thin-film deposition, web handling, sputtering, and semiconductor processing systems where precise, vacuum-compatible motion control is required. The IP65 rating and natural-convection cooling are well-suited to environments where forced-air cooling is impractical. This assembly is of interest to builders and maintainers of Roll-to-Roll PVD or CVD systems, vacuum web coating lines, and similar precision vacuum motion systems.
This Rexroth MSK040B-0450-NN-M1-UG1-NNNN 3-phase servo motor and Wittenstein Alpha SP075S-MF2-16 gearbox assembly was removed from a large Roll-to-Roll vacuum chamber system and is in known working condition. The unit is in very good cosmetic condition overall, consistent with careful industrial use. The motor body, gearbox housing, and stainless steel vacuum flange all appear clean with no significant damage visible. The two circular multi-pin connectors at the rear of the motor are present and in good shape. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Rexroth |
Model: |
MSK040B-0450-NN-M1-UG1-NNNN |
MPN: |
R911321001 |
Secondary Model: |
SP 075S-MF2-16-1C1-2S |
SKU: |
52217 |
Type: |
3-Phase Permanent Magnet Synchronous Servo Motor with Gearbox |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Servo motor and gearbox assembly as shown; no additional accessories included. |
Country/Region of Manufacture: |
Germany |
Phase: |
Three Phase |
Voltage Rating: |
600V AC |
Max Speed (RPM): |
6000 min-1 (RPM) |
Stall Torque Md0 (60K): |
1.7 Nm |
Stall Current Id0 60K (eff): |
1.5 A |
Back-EMF KE(eff): |
77.8 V/1000 min-1 |
Brake: |
4.0 Nm DC 24V +/-10% 0.50 A |
Cooling Method: |
Natural Convection |
Encoder / Feedback: |
ECM1 |
Insulation Class: |
155 (I.CI.) |
Enclosure Rating: |
IP65 |
Duty Type: |
Inverter Duty VPWM |
Certifications: |
UL, cUL, CE |
Manufacture Date Code: |
11W47 |
Gearbox Brand: |
Wittenstein Alpha |
Gearbox Model: |
SP 075S-MF2-16-1C1-2S |
Gear Ratio: |
16:1 |
Gearbox Lubrication: |
Lubricated for Life – Castrol Tribol 800/220 |
Gearbox Date Code (DMF): |
51/11 |
Connector Type: |
Circular M-style multi-pin (power + feedback) |
Mounting: |
Flange mount with stainless steel vacuum flange |
Application: |
Roll-to-Roll Vacuum, Semiconductor, Thin Film |
Compatible With: |
Bosch Rexroth IndraDrive, MSK servo drive systems |
Condition Notes: |
Rexroth MSK040B servo motor with Wittenstein Alpha SP075S-MF2-16 gearbox. Removed from a Roll-to-Roll vacuum chamber; in known working condition. Very good cosmetic condition. Please contact us with any questions. |
