CNC Spindle Motor 3.7 kW, 40000 RPM, 380V Water Cooled ISO20
The 3.7 kW Water-Cooled Spindle Motor is an elite-tier industrial solution designed for applications that demand extreme rotational velocity without sacrificing power. Delivering a robust 3.7 kW output at a staggering 40,000 RPM, this motor is specifically engineered for high-performance CNC milling, drilling, and micro-machining centers. Its advanced 4-pole motor architecture operates at an ultra-high frequency of 1333 Hz, ensuring exceptional dynamic balance and stability during high-load operations. The integrated water-cooling jacket provides industry-leading thermal dissipation, crucial for maintaining the precision of the high-speed bearings during prolonged industrial duty cycles. Equipped with a precision ISO20 tool interface, this 380V spindle provides the mechanical rigidity and rotational accuracy required for superior surface finishes on complex metal and composite components.
- Ultra-High Speed 40,000 RPM for precision micro-machining
- High Power 3.7 kW Output for heavy-duty CNC tasks
- Advanced 4-Pole Motor Architecture for enhanced stability
- Extreme-Frequency 1333 Hz industrial-grade operation
- ISO20 Tool Interface for high rotational accuracy
- Continuous Duty Water Cooling for maximum thermal management
Comparative Technical Spindle Motor Configurations Matrix
Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.
| Spindle Capacity | Operating Speed | Operating Voltage | Cooling System |
|---|---|---|---|
| 12.0 kW | 18,000 RPM | 380 V | Water-Cooled |
| 0.8 kW | 24,000 RPM | 220 V | Air-Cooled (Long Shaft) |
| 3.7 kW | 40,000 RPM | 380 V | Water-Cooled ISO20 |
| 9.0 kW | 18,000 RPM | 380 V | Air-Cooled |
Technical Specifications
| Technical Parameter | Engineering Specification Value |
|---|---|
| MODEL NUMBER | W37400R380ISO20 |
| POWER RATING | 3.7 kW |
| MAX SPEED | 40,000 RPM |
| OPERATING VOLTAGE | 380 V AC |
| FREQUENCY | 1333 Hz |
| POLE COUNT | 4 Pole |
| TOOL INTERFACE | ISO20 |
| MECHANICAL | coolingType: Water Cooled | bodyType: High-Speed Industrial Series | precisionGrade: High Precision Certified |
Industrial Applications
| Usage Scenario | Target Industry |
|---|---|
| High-Performance CNC Milling and Drilling Machines | Precision Engineering and Tooling |
| Heavy-Duty Industrial CNC Machining Centers | Automotive and Aerospace Manufacturing |
| Precision Die and Mold Fabrication | Industrial Machine Tool Production |
| Advanced Composite and Aluminum Routing | Advanced R&D and Prototyping |
| High-Velocity Parts Manufacturing | Heavy Fabrication and Metalworking |
| Micro-Machining for Aerospace and Medical Components | General Engineering |
Technical FAQ & Operational Guide
What kind of VFD is required for a 40,000 RPM spindle?
This spindle requires a specialized high-frequency Variable Frequency Drive (VFD) capable of outputting at least 1333 Hz. Standard industrial VFDs (typically 400-600 Hz) will not be able to drive this motor to its rated speed.
Why is the 4-pole architecture significant at 40,000 RPM?
A 4-pole design provides more balanced magnetic force and higher torque stability compared to a 2-pole design at high frequencies. This reduces vibration and ensures a smoother rotational performance, which is critical for maintaining surface finish quality at 40,000 RPM.
Does this spindle require a chiller?
For a 3.7 kW motor operating at 40,000 RPM, we strongly recommend using a dedicated water chiller rather than a simple pump. A chiller allows for precise temperature control, ensuring the internal precision bearings are protected from heat-induced expansion and failure.
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