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Yaskawa JRMSI-120XBP01200 AC Servo Motor
Manufacturer: Yaskawa
Product Number: JRMSI-120XBP01200
Category: AC Servo Motor (Sigma-7 Series)
Motor Type: Medium-inertia
Application: High torque and smooth motion control
Feedback: Encoder
Operating Temperature: 0°C to +40°C
Protection Rating: IP67
Product Description
The Yaskawa JRMSI-120XBP01200 is a high-performance, medium-inertia servo motor designed for industrial automation applications requiring high torque and smooth motion control. Part of Yaskawa’s Σ-7 (Sigma-7) series, this motor delivers exceptional dynamic response and precision, making it ideal for CNC machinery, robotics, and high-speed production lines.
With a rated power of 1.2kW (1200W) and optimized electromagnetic design, the JRMSI-120XBP01200 provides high torque density while minimizing energy loss. Its IP65-rated enclosure ensures durability in harsh environments, resisting dust, oil, and water ingress. The motor features a high-resolution 24-bit absolute encoder, enabling ultra-precise positioning (±1 arc-minute) and smooth operation at low speeds.
Designed for seamless integration with Yaskawa’s Σ-7 servo drives (e.g., SGD7S series), this motor supports MECHATROLINK-III/IV and EtherCAT communication, ensuring fast, synchronized motion in multi-axis systems.
Technical Specifications
| Parameter | Specification |
| Model | JRMSI-120XBP01200 |
| Manufacturer | Yaskawa |
| Type | AC Servo Motor (Medium Inertia) |
| Rated Power | 1.2 kW (1200W) |
| Rated Torque | 3.82 Nm |
| Max Torque | 11.46 Nm (300% overload) |
| Rated Speed | 3000 rpm |
| Max Speed | 5000 rpm |
| Encoder | 24-bit absolute (Hiperface DSL) |
| Protection Rating | IP65 (dust & water-resistant) |
| Frame Size | 120 mm |
| Shaft Type | Keyway shaft (standard) |
| Weight | 9.5 kg |
| Insulation Class | Class F (155°C) |
High Torque & Dynamic Performance
3.82 Nm rated torque with 11.46 Nm peak torque for demanding applications
Low vibration & smooth operation even at low speeds (<0.5% torque ripple)
Optimized rotor inertia for rapid acceleration/deceleration
Ultra-Precise Positioning
24-bit absolute encoder (±1 arc-minute accuracy)
Adaptive vibration suppression for stable motion control
Compatible with dual-loop feedback (rotary + linear encoder)
Robust Industrial Design
IP65 protection (dustproof & water-resistant)
High-grade bearings (50,000+ hours lifespan)
Corrosion-resistant coating for harsh environments
Smart Connectivity & Integration
MECHATROLINK-III/IV & EtherCAT support
Compatible with Yaskawa SGD7S servo drives
Predictive maintenance via condition monitoring
Typical Applications
CNC Machinery (spindle drives, multi-axis milling)
Industrial Robots (articulated arms, heavy payload handling)
Packaging Machines (high-speed filling, labeling)
Semiconductor Manufacturing (wafer handling, precision stages)
Automotive Automation (welding, assembly lines)
Installation Guidelines
Ensure proper shaft alignment (≤0.02mm radial/axial misalignment)
Use flexible couplings to minimize mechanical stress
Maintain minimum 20mm clearance around motor for ventilation
Maintenance Recommendations
Annual inspection of bearings & seals
Monitor temperature (max 90°C winding temp)
Regular encoder cleaning (non-contact method)
Warranty & Support
Yaskawa provides a 24-month warranty with lifetime technical support. The JRMSI-120XBP01200 is designed for 10+ years of operation under normal conditions. Support includes:
Free firmware updates
Global service network (on-site repairs available)
Predictive maintenance tools via SigmaWin+ software
Why Choose the Yaskawa JRMSI-120XBP01200?
✔ High torque & precision for demanding automation
✔ IP65-rated durability in harsh environments
✔ Seamless integration with Σ-7 servo systems
✔ Industry-leading reliability (50,000+ hour bearing life)
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Yaskawa JRMSI-120XBP01200 AC Servo Motor
Manufacturer: Yaskawa
Product Number: JRMSI-120XBP01200
Category: AC Servo Motor (Sigma-7 Series)
Motor Type: Medium-inertia
Application: High torque and smooth motion control
Feedback: Encoder
Operating Temperature: 0°C to +40°C
Protection Rating: IP67
Product Description
The Yaskawa JRMSI-120XBP01200 is a high-performance, medium-inertia servo motor designed for industrial automation applications requiring high torque and smooth motion control. Part of Yaskawa’s Σ-7 (Sigma-7) series, this motor delivers exceptional dynamic response and precision, making it ideal for CNC machinery, robotics, and high-speed production lines.
With a rated power of 1.2kW (1200W) and optimized electromagnetic design, the JRMSI-120XBP01200 provides high torque density while minimizing energy loss. Its IP65-rated enclosure ensures durability in harsh environments, resisting dust, oil, and water ingress. The motor features a high-resolution 24-bit absolute encoder, enabling ultra-precise positioning (±1 arc-minute) and smooth operation at low speeds.
Designed for seamless integration with Yaskawa’s Σ-7 servo drives (e.g., SGD7S series), this motor supports MECHATROLINK-III/IV and EtherCAT communication, ensuring fast, synchronized motion in multi-axis systems.
Technical Specifications
| Parameter | Specification |
| Model | JRMSI-120XBP01200 |
| Manufacturer | Yaskawa |
| Type | AC Servo Motor (Medium Inertia) |
| Rated Power | 1.2 kW (1200W) |
| Rated Torque | 3.82 Nm |
| Max Torque | 11.46 Nm (300% overload) |
| Rated Speed | 3000 rpm |
| Max Speed | 5000 rpm |
| Encoder | 24-bit absolute (Hiperface DSL) |
| Protection Rating | IP65 (dust & water-resistant) |
| Frame Size | 120 mm |
| Shaft Type | Keyway shaft (standard) |
| Weight | 9.5 kg |
| Insulation Class | Class F (155°C) |
High Torque & Dynamic Performance
3.82 Nm rated torque with 11.46 Nm peak torque for demanding applications
Low vibration & smooth operation even at low speeds (<0.5% torque ripple)
Optimized rotor inertia for rapid acceleration/deceleration
Ultra-Precise Positioning
24-bit absolute encoder (±1 arc-minute accuracy)
Adaptive vibration suppression for stable motion control
Compatible with dual-loop feedback (rotary + linear encoder)
Robust Industrial Design
IP65 protection (dustproof & water-resistant)
High-grade bearings (50,000+ hours lifespan)
Corrosion-resistant coating for harsh environments
Smart Connectivity & Integration
MECHATROLINK-III/IV & EtherCAT support
Compatible with Yaskawa SGD7S servo drives
Predictive maintenance via condition monitoring
Typical Applications
CNC Machinery (spindle drives, multi-axis milling)
Industrial Robots (articulated arms, heavy payload handling)
Packaging Machines (high-speed filling, labeling)
Semiconductor Manufacturing (wafer handling, precision stages)
Automotive Automation (welding, assembly lines)
Installation Guidelines
Ensure proper shaft alignment (≤0.02mm radial/axial misalignment)
Use flexible couplings to minimize mechanical stress
Maintain minimum 20mm clearance around motor for ventilation
Maintenance Recommendations
Annual inspection of bearings & seals
Monitor temperature (max 90°C winding temp)
Regular encoder cleaning (non-contact method)
Warranty & Support
Yaskawa provides a 24-month warranty with lifetime technical support. The JRMSI-120XBP01200 is designed for 10+ years of operation under normal conditions. Support includes:
Free firmware updates
Global service network (on-site repairs available)
Predictive maintenance tools via SigmaWin+ software
Why Choose the Yaskawa JRMSI-120XBP01200?
✔ High torque & precision for demanding automation
✔ IP65-rated durability in harsh environments
✔ Seamless integration with Σ-7 servo systems
✔ Industry-leading reliability (50,000+ hour bearing life)
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