CNC Spindle Motor 3.5 kW, 18000 RPM, 300Hz Dual-Head Air-Cooled ER20

The 3.5 kW Dual-Head Air-Cooled Spindle Motor is a specialized industrial solution designed for CNC applications that require multi-tool versatility or simultaneous machining capabilities. Delivering 3.5 kW of robust power at a peak speed of 18,000 RPM, this motor features a unique dual-axis architecture that allows for the mounting of tools on both ends of the spindle body. This configuration is ideal for complex woodworking and routing tasks, reducing the need for manual tool changes and increasing production throughput. Operating at a stable 300 Hz frequency, the spindle utilizes an advanced dual air-cooling system to ensure efficient heat dissipation across both heads during intensive operations. Equipped with precision ER20 collet interfaces on both sides, this spindle provides secure tool holding and the mechanical rigidity necessary for high-speed precision machining.

High Power 3.5 kW Rating for robust material removal
High-Speed 18,000 RPM for clean and precise cuts
Unique Dual-Head design for multi-tool efficiency
Advanced Dual Air-Cooling system for superior heat management
Industrial 300 Hz Frequency for stable rotational performance
ER20 Collet Type on both ends for versatile tool mounting

⚡ 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	A35180D-ER20
POWER RATING	3.5 kW
MAX SPEED	18000 RPM
FREQUENCY	300 Hz
COLLET INTERFACE	ER20 (Dual End)
COOLING TYPE	Dual Air Cooled (Integrated Fans)
MECHANICAL	bodyType: Dual Head Industrial Series \| precisionGrade: High Precision Grade \| applicationCompatibility: Multi-Tool CNC Routing

Industrial Applications

Usage Scenario	Target Industry
Multi-Tool Woodworking and Panel Processing	Industrial Woodworking and Furniture
High-Speed Precision CNC Routing	Signage and Advertising Industries
Simultaneous Dual-Side Engraving	Advanced Machine Tool Manufacturing
Industrial Furniture and Cabinetry Fabrication	Commercial Fabrication and Milling
Complex Prototyping and Custom Machining	Precision Engineering Studios
Automated Production Line Integration	General Engineering

Technical FAQ & Operational Guide

What is the primary benefit of a Dual-Head spindle?

A dual-head spindle allows you to mount two different tools simultaneously (one on each end). This is extremely beneficial for processes that require two distinct operations—like roughing and finishing—without needing a full tool changer or stopping the machine to switch bits manually.

Does the 18,000 RPM apply to both heads?

Yes, both heads are driven by the same internal motor, meaning they rotate at the same speed (up to 18,000 RPM) and frequency (300 Hz) simultaneously.

Is the cooling sufficient for both heads?

Absolutely. This model features a specialized 'Dual Air Cooling' system specifically designed to push high-velocity air across the entire motor housing, ensuring that both bearing sets and the central windings remain within safe operating temperatures during continuous use.

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 3.5 kW, 18000 RPM, 300Hz Dual-Head Air-Cooled ER20

High Power 3.5 kW Rating for robust material removal

High-Speed 18,000 RPM for clean and precise cuts

Unique Dual-Head design for multi-tool efficiency

Advanced Dual Air-Cooling system for superior heat management

Industrial 300 Hz Frequency for stable rotational performance

ER20 Collet Type on both ends for versatile tool mounting

⚡ 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

A35180D-ER20

POWER RATING

3.5 kW

MAX SPEED

18000 RPM

FREQUENCY

300 Hz

COLLET INTERFACE

ER20 (Dual End)

COOLING TYPE

Dual Air Cooled (Integrated Fans)

MECHANICAL

bodyType: Dual Head Industrial Series | precisionGrade: High Precision Grade | applicationCompatibility: Multi-Tool CNC Routing

Usage Scenario

Target Industry

Multi-Tool Woodworking and Panel Processing

Industrial Woodworking and Furniture

High-Speed Precision CNC Routing

Signage and Advertising Industries

Simultaneous Dual-Side Engraving

Advanced Machine Tool Manufacturing

Industrial Furniture and Cabinetry Fabrication

Commercial Fabrication and Milling

Complex Prototyping and Custom Machining

Precision Engineering Studios

Automated Production Line Integration

General Engineering