CNC Spindle Motor 7.5 kW, 24000 RPM, 380 V, 800 Hz Water Cooled

The 7.5 kW Water-Cooled Spindle Motor is an elite industrial solution engineered for the most demanding CNC applications. Unlike standard motors, this unit features a robust 4-pole architecture delivering a massive 5.76 Nm of torque, ensuring stable performance during heavy-duty material removal. Operating at a high frequency of 800 Hz to reach 24,000 RPM, it provides the perfect balance of speed and power for thick stone carving, granite profiling, and deep metal engraving. The integrated water-cooling system maintains optimal thermal stability across its 26.5 kg frame, while the premium P4 bearing configuration (7008 & 7005) ensures ultra-smooth rotation. With an industrial-standard ER32 collet system, it supports large-diameter tooling up to 20mm, making it the primary choice for heavy industrial machining centers.

Ultra-Powerful 7.5 kW Industrial Motor
High-Speed 24000 RPM Performance
Advanced 4-Pole High-Torque Electrical Design
High-Frequency 800 Hz Operation
ER32 Collet system (2mm to 20mm tool shanks)
Durable 26.5 kg Construction for Dampening

⚡ 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	W75240R380M1800
POWER RATING	7.5 kW
MAX SPEED	24000 RPM
OPERATING VOLTAGE	380 V AC (3 Phase)
RATED CURRENT	14.5 A
FREQUENCY	800 Hz
RATED TORQUE	5.76 N.m
POLE COUNT	4 Pole
COLLET INTERFACE	ER32 (2mm - 20mm)
BEARING CONFIGURATION	2 x 7008 P4 (Front), 2 x 7005 P4 (Rear)
MECHANICAL	weight: 26.5 Kg \| coolingType: Water Cooled \| bodyType: Industrial Heavy Duty

Industrial Applications

Usage Scenario	Target Industry
Heavy-Duty Stone and Granite Profiling	Stone and Marble Fabrication
Large-Scale Marble Relief Carving	Metalworking and Foundries
Industrial Metal Engraving and Milling	Industrial Machine Building
High-Torque Hardwood Sculpting	Furniture Manufacturing
Aerospace and Automotive Component Machining	Energy and Heavy Engineering
Custom Machine Building for Heavy Industrial Use	General Engineering

Technical FAQ & Operational Guide

Why does this 7.5 kW spindle use a 4-pole design?

A 4-pole design provides significantly higher torque (5.76 Nm) compared to standard 2-pole motors. This is essential for maintaining RPM stability when cutting through very hard materials like granite or thick metals.

What kind of VFD do I need for this motor?

You need a high-frequency Variable Frequency Drive (VFD) rated for at least 7.5 kW that supports a maximum output frequency of 800 Hz and 380V 3-phase input.

Can I use smaller tools with this ER32 spindle?

Yes, while ER32 can hold large tools up to 20mm, you can use collets to hold shanks as small as 2mm for more detailed engraving work.

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 7.5 kW, 24000 RPM, 380 V, 800 Hz Water Cooled

Ultra-Powerful 7.5 kW Industrial Motor

High-Speed 24000 RPM Performance

Advanced 4-Pole High-Torque Electrical Design

High-Frequency 800 Hz Operation

ER32 Collet system (2mm to 20mm tool shanks)

Durable 26.5 kg Construction for Dampening

⚡ 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

W75240R380M1800

POWER RATING

7.5 kW

MAX SPEED

24000 RPM

OPERATING VOLTAGE

380 V AC (3 Phase)

RATED CURRENT

14.5 A

FREQUENCY

800 Hz

RATED TORQUE

5.76 N.m

POLE COUNT

4 Pole

COLLET INTERFACE

ER32 (2mm - 20mm)

BEARING CONFIGURATION

2 x 7008 P4 (Front), 2 x 7005 P4 (Rear)

MECHANICAL

weight: 26.5 Kg | coolingType: Water Cooled | bodyType: Industrial Heavy Duty

Usage Scenario

Target Industry

Heavy-Duty Stone and Granite Profiling

Stone and Marble Fabrication

Large-Scale Marble Relief Carving

Metalworking and Foundries

Industrial Metal Engraving and Milling

Industrial Machine Building

High-Torque Hardwood Sculpting

Furniture Manufacturing

Aerospace and Automotive Component Machining

Energy and Heavy Engineering

Custom Machine Building for Heavy Industrial Use

General Engineering