Yaskawa CIMR-M5D2018 VS-626M5 Spindle Inverter
Yaskawa CIMR-M5D2018 VS-626M5 Spindle Inverter
The Yaskawa CIMR-M5D2018 is a high-performance AC Spindle Drive belonging to the Varispeed-626M5 (VS-626M5) series.
1 Unlike general-purpose industrial drives, this model is a vector-controlled inverter specifically engineered for machine tool spindle applications.
It is designed to work in tandem with a power regenerative converter (such as the VS-656MR5) to return energy to the power line during motor deceleration, significantly improving energy efficiency.
Technical Parameter Table
| Parameter | Specification |
| Manufacturer | Yaskawa Electric (Japan) |
| Model | CIMR-M5D2018 (Series: VS-626M5) |
| Capacity | 18.5 kW / 22 kW (Typical based on duty rating) |
| Input Voltage | 200V Class (DC Bus Input: 270–325 VDC) |
| Output Voltage | 3-Phase 0–230 VAC |
| Rated Output Current | Approx. 75 A – 85 A (Varies by load profile) |
| Control Method | Sine-wave PWM Inverter (Vector Control) |
| Speed Control Range | 40 rpm to maximum motor speed |
| Speed Regulation | ±0.2% or less of maximum speed |
| Weight | Approx. 12.25 kg (27 lbs) |
Product Advantages and Features
High-Precision Vector Control: Provides exceptional torque control and speed stability, which is critical for high-quality surface finishes in machining.
Energy Savings: When paired with a regenerative converter, it recycles braking energy back into the power grid rather than dissipating it as heat.
Compact Integration: Specifically designed for CNC cabinets where space is at a premium, featuring a high power-to-size ratio.
Wide Speed Range: Supports both low-speed high-torque cutting and high-speed finishing within a single spindle motor setup.
CIMR-M5D2018
Reliability: Includes thermal protection for the motor and drive, overcurrent/overvoltage prevention, and ground fault protection.
CIMR-M5D2018
Application Cases
The CIMR-M5D2018 is a standard component in high-end manufacturing environments:
CNC Machining Centers: The primary drive for main spindles in 3-axis and 5-axis milling machines.
Lathes & Turning Centers: Managing the heavy-duty start/stop cycles of turning spindles.
Grinding Machines: Ensuring constant surface speed regardless of the grinding wheel’s diameter change.
High-Speed Woodworking: Precise control of routers and shapers requiring rapid acceleration.
Other Models in the Same Series
The VS-626M5 series scales according to the kilowatt (kW) requirement of the spindle motor:
200V Class Models
CIMR-M5D23P7: 3.7 kW Small Capacity.
CIMR-M5D27P5: 7.5 kW Medium Capacity.
CIMR-M5D2011: 11 kW Capacity.
CIMR-M5D2015: 15 kW Capacity.
CIMR-M5D2022: 22 kW High Capacity (Step up from 2018).
400V Class Models
CIMR-M5N45P5: 5.5 kW.
CIMR-M5N4011: 11 kW.
CIMR-M5N4018: 18.5 kW.