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

Engineering Analysis & Technical Data

Technical Parameter	Specification Details
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

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.

Detailed Overview of CNC Spindle Motor 3.7 kW, 40000 RPM, 380V Water Cooled ISO20

Advanced Engineering & Integration

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