CNC Spindle Motor 7.5 kW, 18000 RPM, 380V Air-Cooled Square ER32

The 7.5 kW Air-Cooled Square Spindle Motor is a robust industrial solution designed for substantial CNC applications that require significant cutting force and mechanical stability. Engineered with a square body profile, this motor offers a larger mounting surface to minimize vibration during intensive material removal. Delivering a consistent 3.58 Nm of torque at a peak speed of 18,000 RPM, it is tailored for CNC router manufacturers, pattern making, and large-scale wood carving. The 380V motor operates at a stable 300 Hz frequency and is equipped with a premium P4 grade bearing configuration (2x 7008 & 2x 7004) to handle high radial loads. With a 17.2 kg architecture and an ER32 collet system supporting tools up to 20mm, this spindle provides the industrial-grade performance required for demanding machining environments where air cooling is preferred.

Industrial 7.5 kW High-Power Performance
Stable Square Body design for vibration reduction
Precision P4 Grade Bearing Assembly (7008 & 7004)
300 Hz High-Frequency stable operation
Efficient Air Cooling for continuous industrial duty
ER32 Collet system for tool shanks up to 20mm

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Shop Now

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	A75180S380M132
POWER RATING	7.5 kW
MAX SPEED	18000 RPM
OPERATING VOLTAGE	380 V AC
RATED CURRENT	15.0 A
FREQUENCY	300 Hz
RATED TORQUE	3.58 Nm
POLE COUNT	2 Pole
COLLET INTERFACE	ER32 (2mm - 20mm)
BEARING CONFIGURATION	2 x 7008 P4 (Front), 2 x 7004 P4 (Rear)
MECHANICAL	weight: 17.2 kg \| coolingType: Air Cooled \| bodyType: Square Profile

Industrial Applications

Usage Scenario	Target Industry
Industrial CNC Router Manufacturing	Industrial Woodworking and Furniture
CNC Pattern Making and Tooling	Foundry and Pattern Shops
Large-Scale Foam Cutting and Shaping	Machine Tool Manufacturing
Heavy Wood Carving and Panel Processing	Commercial Fabrication and Milling
Composite and Acrylic Material Routing	General Precision Engineering
Automated Signage and Display Fabrication	General Engineering

Technical FAQ & Operational Guide

What is the advantage of a square body design for a 7.5kW spindle?

The square body provides a larger, flatter mounting surface than round spindles. This significantly improves the mechanical connection to the machine headstock, reducing vibration during heavy-duty cutting and ensuring a superior surface finish.

Is any external cooling needed for this motor?

No, this model is fully air-cooled. It features a built-in fan system designed to maintain an optimal operating temperature, making it a lower-maintenance alternative to water-cooled models in industrial environments.

Which tools can I use with the ER32 collet?

The ER32 system is a standard industrial interface that supports tool shanks from 2mm up to 20mm. This versatility allows you to use everything from fine engraving bits to large material removal cutters.

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.

Request Quote

Share your requirements, and we’ll provide a tailored quote.

Please wait...

CNC Spindle Motor 7.5 kW, 18000 RPM, 380V Air-Cooled Square ER32

Industrial 7.5 kW High-Power Performance

Stable Square Body design for vibration reduction

Precision P4 Grade Bearing Assembly (7008 & 7004)

300 Hz High-Frequency stable operation

Efficient Air Cooling for continuous industrial duty

ER32 Collet system for tool shanks 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

A75180S380M132

POWER RATING

7.5 kW

MAX SPEED

18000 RPM

OPERATING VOLTAGE

380 V AC

RATED CURRENT

15.0 A

FREQUENCY

300 Hz

RATED TORQUE

3.58 Nm

POLE COUNT

2 Pole

COLLET INTERFACE

ER32 (2mm - 20mm)

BEARING CONFIGURATION

2 x 7008 P4 (Front), 2 x 7004 P4 (Rear)

MECHANICAL

weight: 17.2 kg | coolingType: Air Cooled | bodyType: Square Profile

Usage Scenario

Target Industry

Industrial CNC Router Manufacturing

Industrial Woodworking and Furniture

CNC Pattern Making and Tooling

Foundry and Pattern Shops

Large-Scale Foam Cutting and Shaping

Machine Tool Manufacturing

Heavy Wood Carving and Panel Processing

Commercial Fabrication and Milling

Composite and Acrylic Material Routing

General Precision Engineering

Automated Signage and Display Fabrication

General Engineering