CNC Spindle Motor 4.5 kW, 18000 RPM, 380 V Air-Cooled Square

The 4.5 kW Air-Cooled Square Spindle Motor is a heavy-duty industrial solution engineered for high-performance CNC machining where power and thermal stability are paramount. Delivering a robust 2.27 Nm of torque at 18,000 RPM (300 Hz), this motor is designed for aggressive material removal in woodworking, pattern making, and foam processing. Its square profile enhances mounting rigidity and cooling surface area, making it a reliable choice for long-duration production cycles. Equipped with a premium P4 precision bearing configuration (2x 7008 & 2x 7002), it ensures minimal runout even under high radial loads. The inclusion of the ER32 collet system allows for a wide tool range from 2mm to 20mm, providing the versatility needed for diverse industrial routing tasks without the complexity of a water-cooling setup.

High-Capacity 4.5 kW Motor Output
Steady 18000 RPM for industrial machining
Industrial 380V Power Architecture
Rigid Square Body for superior heat dissipation
Precision P4 Grade Bearing Assembly (7008 & 7002)
Versatile ER32 Collet system (2mm 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
MAX SPEED	18000 RPM
MECHANICAL	weight: 12 kg \| coolingType: Air Cooled (Integrated Fan) \| bodyType: Square Profile
FREQUENCY	300 Hz
POLE COUNT	2 Pole
BEARING CONFIGURATION	2 x 7008 P4 (Front), 2 x 7002 P4 (Rear)
MODEL NUMBER	A45180S380M1
POWER RATING	4.5 kW
OPERATING VOLTAGE	380 V AC
RATED CURRENT	9.0 A
RATED TORQUE	2.27 Nm
COLLET INTERFACE	ER32 (2mm - 20mm)

Industrial Applications

Usage Scenario	Target Industry
Industrial CNC Router Manufacturing	Machine Tool Manufacturing
CNC Pattern Making and Mold Design	Automotive and Industrial Design
High-Speed Foam Cutting and Shaping	Commercial Furniture and Joinery
Heavy-Duty Wood Carving and Panel Processing	Signage and Displays
Large-Scale Architectural Model Making	Prototyping and Tooling Shops
3D Relief Carving and Sculpting	General Engineering

Technical FAQ & Operational Guide

What tools can I use with the ER32 collet on this 4.5kW motor?

The ER32 collet system is highly versatile and supports tool shanks ranging from 2mm up to 20mm in diameter, allowing for both fine detail work and heavy-duty material removal.

Does this 4.5 kW motor require a water cooling setup?

No, this is an air-cooled model with an integrated fan. It is designed for simple installation and lower maintenance compared to water-cooled systems, while still providing excellent thermal management through its square body design.

Can this spindle handle non-wood materials?

Yes, its 2.27 Nm torque and 18,000 RPM speed make it suitable for various materials including foam, plastics, composites, and soft woods.

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, 18000 RPM, 380 V Air-Cooled Square

High-Capacity 4.5 kW Motor Output

Steady 18000 RPM for industrial machining

Industrial 380V Power Architecture

Rigid Square Body for superior heat dissipation

Precision P4 Grade Bearing Assembly (7008 & 7002)

Versatile ER32 Collet system (2mm 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

MAX SPEED

18000 RPM

MECHANICAL

weight: 12 kg | coolingType: Air Cooled (Integrated Fan) | bodyType: Square Profile

FREQUENCY

300 Hz

POLE COUNT

2 Pole

BEARING CONFIGURATION

2 x 7008 P4 (Front), 2 x 7002 P4 (Rear)

MODEL NUMBER

A45180S380M1

POWER RATING

4.5 kW

OPERATING VOLTAGE

380 V AC

RATED CURRENT

9.0 A

RATED TORQUE

2.27 Nm

COLLET INTERFACE

ER32 (2mm - 20mm)

Usage Scenario

Target Industry

Industrial CNC Router Manufacturing

Machine Tool Manufacturing

CNC Pattern Making and Mold Design

Automotive and Industrial Design

High-Speed Foam Cutting and Shaping

Commercial Furniture and Joinery

Heavy-Duty Wood Carving and Panel Processing

Signage and Displays

Large-Scale Architectural Model Making

Prototyping and Tooling Shops

3D Relief Carving and Sculpting

General Engineering