Description
The CIMR-MTIII-7.5K is a high-performance spindle drive from Yaskawa’s Varispeed 626MTIII series, engineered for precision CNC and industrial motor control. With a rated output of 7.5 kW, this transistor inverter offers stable speed and torque regulation, especially for spindle applications in machine tools and automation systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Yaskawa |
| Category |
|
| Part Number |
CIMR-MTIII-7.5K |
| Subcategory |
CNC Motor/Control |
| Series |
Varispeed 626MTIII
|
| Drive Type |
AC Spindle Drive (Transistor Inverter)
|
| Rated Output Power |
7.5 kW
|
| Output Voltage |
Adjustable AC (typically 3-phase)
|
| Output Frequency |
0–120 Hz (standard spindle range)
|
| Input Type |
3-phase AC
|
| Control Method |
V/f and Vector Control
|
| Overload Capacity |
110% for 60 s, 150% for 3 s
|
| Protection Features |
Overcurrent, Overtemp, Short Circuit, etc.
|
| Enclosure Type |
IP20 (open chassis, control cabinet use)
|
| Cooling Method |
Forced-air internal cooling
|
| Ambient Temperature |
0 °C to +40 °C
|
| Relative Humidity |
0–95% non-condensing
|
| Installation Type |
Panel / Electrical room mount
|
| Application Type |
CNC, machine tools, spindles
|
| Communication |
Optional: Modbus RTU, Profibus, etc.
|
| Compliance |
IEC, UL, CE, RoHS
|
| Weight |
47.00 lbs (21.3 kg)
|
Information About CIMR-MTIII-7.5K
The CIMR-MTIII-7.5K is part of Yaskawa’s Varispeed 626MTIII series, developed specifically for AC spindle control in industrial CNC applications. It is designed with reliable transistor inverter architecture and offers high-speed precision with smooth acceleration and deceleration profiles. The drive is rated for 7.5 kW output and is well-suited for medium-duty tasks requiring rapid response and torque consistency. Though no longer in production, it continues to support critical systems where high-resolution control of spindle motors is essential.
Key Features:
- Spindle Motor Drive: Optimized for high-speed AC spindle motor control in CNC systems.
- Output Power: Rated for 7.5 kW output, ideal for medium-power automation applications.
- Transistor Inverter: Uses proven transistor-based technology for efficient and stable output.
- Precision Control: Offers fine-tuned motor response, suitable for demanding machining tasks.
- Durable Build: Industrial-grade construction ensures reliable performance under constant duty.
- Compact Enclosure: Designed to fit standard electrical cabinets and control rooms.
- Thermal Protection: Includes overload and overheating safeguards to extend service life.
- Legacy Compatibility: Supports integration in older Yaskawa CNC control systems.
- Use Case: Well-suited for turning, milling, grinding, and other spindle-based applications.
The CIMR-MTIII-7.5K delivers the motor control precision and rugged design needed for CNC spindle systems in industrial environments.
