CNC Spindle Motor 4.5 kW, 24000 RPM, 380 V Water Cooled

The 4.5 kW CNC Water-Cooled Spindle Motor is a robust industrial solution engineered for high-torque and high-speed operations. Operating at 24,000 RPM with a 380V 3-phase input, this motor is specifically designed to handle the rigorous demands of stone carving, marble profiling, and intricate wood machining. The integrated water-cooling system ensures exceptional thermal management, allowing for continuous operation in demanding environments without accuracy loss or component fatigue. Equipped with a precision P4 bearing configuration (7005 & 7003), it delivers smooth performance and minimal runout, making it equally effective for machining soft metals like aluminum, brass, and copper. The ER20 collet system provides the versatility needed for a wide range of industrial tooling.

Heavy-Duty 4.5 kW Industrial Motor
High-Speed 24000 RPM Capability
380V 3-Phase Stable Power Input
Active Water Cooling for Thermal Management
Precision P4 Grade Bearing Assembly
ER20 Collet system for versatile tool clamping

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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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	W45240R380M1
POWER RATING	4.5 kW
MAX SPEED	24000 RPM
OPERATING VOLTAGE	380 V AC (3 Phase)
RATED CURRENT	12.0 A
FREQUENCY	400 Hz
RATED TORQUE	1.45 N.m
POLE COUNT	2 Pole
COLLET INTERFACE	ER20 (1mm - 13mm)
BEARING CONFIGURATION	2 x 7005 P4 (Front), 2 x 7003 P4 (Rear)
MECHANICAL	weight: 9 Kg \| coolingType: Water Cooled \| bodyType: Round / Cylindrical

Industrial Applications

Usage Scenario	Target Industry
Precision Marble Cutting and Profiling	Stone and Marble Processing
Stone and Granite Carving	Industrial Furniture Manufacturing
Intricate Woodworking and Relief Carving	Metal Fabrication and Tooling
Non-Ferrous Metal Machining (Aluminum, Brass, Copper)	Advertising and Architectural Signage
Heavy-Duty Industrial CNC Routing	Machine Building and Automation
Signage and Pattern Making	General Engineering

Technical FAQ & Operational Guide

Why is water cooling preferred for marble and stone carving?

Stone machining generates significant heat and abrasive dust. Water cooling provides a sealed, high-efficiency thermal management system that keeps the motor at a constant temperature even during long, high-torque operations, unlike air-cooled systems that can be affected by dust.

Can this motor be run on a single-phase supply?

No, this model is designed for an industrial 380V 3-phase supply. You will need a compatible 3-phase VFD to operate this motor correctly.

What size tools can I use with the ER20 collet?

The ER20 collet system on this 4.5 kW spindle allows you to clamp tool shanks from 1mm up to 13mm, providing range for both fine engraving and heavy material removal.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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CNC Spindle Motor 4.5 kW, 24000 RPM, 380 V Water Cooled

Heavy-Duty 4.5 kW Industrial Motor

High-Speed 24000 RPM Capability

380V 3-Phase Stable Power Input

Active Water Cooling for Thermal Management

Precision P4 Grade Bearing Assembly

ER20 Collet system for versatile tool clamping

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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 Parameter

Engineering Specification Value

MODEL NUMBER

W45240R380M1

POWER RATING

4.5 kW

MAX SPEED

24000 RPM

OPERATING VOLTAGE

380 V AC (3 Phase)

RATED CURRENT

12.0 A

FREQUENCY

400 Hz

RATED TORQUE

1.45 N.m

POLE COUNT

2 Pole

COLLET INTERFACE

ER20 (1mm - 13mm)

BEARING CONFIGURATION

2 x 7005 P4 (Front), 2 x 7003 P4 (Rear)

MECHANICAL

weight: 9 Kg | coolingType: Water Cooled | bodyType: Round / Cylindrical

Usage Scenario

Target Industry

Precision Marble Cutting and Profiling

Stone and Marble Processing

Stone and Granite Carving

Industrial Furniture Manufacturing

Intricate Woodworking and Relief Carving

Metal Fabrication and Tooling

Non-Ferrous Metal Machining (Aluminum, Brass, Copper)

Advertising and Architectural Signage

Heavy-Duty Industrial CNC Routing

Machine Building and Automation

Signage and Pattern Making

General Engineering