CNC Spindle Motor 7.5 kW, 24000 RPM, 380V ER32 Water Cooled

The 7.5 kW Water-Cooled CNC Spindle Motor is a robust industrial solution engineered for demanding applications that require sustained power and extreme rotational precision. Delivering a consistent 3.18 Nm of torque at a peak speed of 24,000 RPM, this motor is a primary choice for industrial stone carving, marble engraving, and heavy-duty metal fabrication. The integrated water-cooling system provides superior thermal regulation, allowing the spindle to maintain peak performance during long, high-load operating cycles. Built for reliability, it features a specialized 4-bearing P4 configuration (2x 7008 & 2x 7005) to handle significant radial and axial cutting forces. With a 23.5 kg mechanical mass and a versatile ER32 collet system supporting tool shanks up to 20mm, this 380V motor provides the stability and power required for professional CNC machining centers.

Industrial 7.5 kW High-Power Performance
High-Speed 24,000 RPM for efficient material removal
Precision P4 Grade Bearing Assembly (7008 & 7005)
Advanced Water Cooling for maximum thermal stability
Consistent 3.18 Nm torque delivery for dense materials
Versatile ER32 Collet system for tools up to 20mm

⚡ 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	W75240R380M132
POWER RATING	7.5 kW
MAX SPEED	24000 RPM
OPERATING VOLTAGE	380 V AC
RATED CURRENT	14.0 A
FREQUENCY	400 Hz
RATED TORQUE	3.18 Nm
POLE COUNT	2 Pole
COLLET INTERFACE	ER32 (2mm - 20mm)
BEARING CONFIGURATION	2 x 7008 P4 (Front), 2 x 7005 P4 (Rear)
MECHANICAL	weight: 23.5 Kg \| coolingType: Water Cooled \| bodyType: Industrial Heavy-Duty Series

Industrial Applications

Usage Scenario	Target Industry
Heavy-Duty Stone Carving and Marble Engraving	Stone Fabrication and Masonry
Industrial Metal Engraving and Milling	Metalworking and Tooling Industries
Large-Scale Woodworking and Panel Processing	Industrial Woodworking
Composite and Aluminum Plate Routing	Signage and Large-Format Advertising
Automated Signage and Sculpture Fabrication	Advanced Machine Tool Manufacturing
Industrial VMC and CNC Router Manufacturing	General Engineering

Technical FAQ & Operational Guide

Is this spindle suitable for granite and marble carving?

Yes, the 7.5 kW power rating and 3.18 Nm torque provide the cutting force necessary for dense materials like marble and granite, while the water-cooling ensures the motor doesn't overheat during long carving cycles.

What tools are compatible with the ER32 nose?

The ER32 system is highly versatile, supporting tool shanks from 2mm up to 20mm. This is ideal for using everything from fine engraving bits to large material removal cutters.

Why is the 4-bearing P4 configuration important?

The P4 precision class ensures minimal runout, while the 4-bearing layout (7008 and 7005 combination) provides the axial and radial rigidity needed to handle the significant pressure of metal and stone machining.

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, 380V ER32 Water Cooled

Industrial 7.5 kW High-Power Performance

High-Speed 24,000 RPM for efficient material removal

Precision P4 Grade Bearing Assembly (7008 & 7005)

Advanced Water Cooling for maximum thermal stability

Consistent 3.18 Nm torque delivery for dense materials

Versatile ER32 Collet system for tools up to 20mm

⚡ 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

W75240R380M132

POWER RATING

7.5 kW

MAX SPEED

24000 RPM

OPERATING VOLTAGE

380 V AC

RATED CURRENT

14.0 A

FREQUENCY

400 Hz

RATED TORQUE

3.18 Nm

POLE COUNT

2 Pole

COLLET INTERFACE

ER32 (2mm - 20mm)

BEARING CONFIGURATION

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

MECHANICAL

weight: 23.5 Kg | coolingType: Water Cooled | bodyType: Industrial Heavy-Duty Series

Usage Scenario

Target Industry

Heavy-Duty Stone Carving and Marble Engraving

Stone Fabrication and Masonry

Industrial Metal Engraving and Milling

Metalworking and Tooling Industries

Large-Scale Woodworking and Panel Processing

Industrial Woodworking

Composite and Aluminum Plate Routing

Signage and Large-Format Advertising

Automated Signage and Sculpture Fabrication

Advanced Machine Tool Manufacturing

Industrial VMC and CNC Router Manufacturing

General Engineering