CNC Spindle Motor 12 kW, 18000 RPM, 380 V Water Cooled

The 12 kW Water-Cooled Spindle Motor is a flagship industrial solution engineered for the most intensive metalworking and heavy-duty milling applications. This motor stands out with its robust 6-pole architecture, delivering a massive 6.5 Nm of torque—providing the superior 'grunt' required for aggressive material removal in steel, aluminum, and dense alloys. Operating at 18,000 RPM with a high-frequency input of 900 Hz, it strikes an optimal balance between rotational speed and sheer cutting power. The high-capacity water-cooling system ensures maximum thermal regulation across its 27 kg industrial frame, while the premium P4 bearing configuration (7008 & 7006) provides the rigidity needed for precision drilling and milling. Equipped with a versatile ER32 collet system, it supports large industrial tooling up to 20mm, making it the primary choice for heavy-duty CNC machining centers.

High-Performance 12 kW Industrial Power
18000 RPM Optimized for Metal Milling
Superior 6-Pole High-Torque Architecture
High-Frequency 900 Hz Stable Operation
Active Water Cooling for Continuous Duty Cycles
ER32 Collet system (2mm to 20mm tool shanks)

⚡ 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: 27 Kg \| coolingType: Water Cooled \| bodyType: Heavy-Duty Industrial
FREQUENCY	900 Hz
POLE COUNT	6 Pole
BEARING CONFIGURATION	2 x 7008 P4 (Front), 2 x 7006 P4 (Rear)
MODEL NUMBER	WM12180R380M1
POWER RATING	12 kW
OPERATING VOLTAGE	380 V AC (3 Phase)
RATED CURRENT	26 A
RATED TORQUE	6.5 N.m
COLLET INTERFACE	ER32 (2mm - 20mm)

Industrial Applications

Usage Scenario	Target Industry
Industrial CNC Metal Milling Machines	Metal Fabrication and Foundries
Heavy-Duty Multi-Axis Drilling Centers	Aerospace and Defense Manufacturing
Dense Alloy and Steel Machining	Automotive Tooling and Engineering
Large-Scale Aerospace Component Milling	Industrial Machine Building
Automotive Die and Mold Making	Energy and Heavy Engineering
High-Torque Industrial Routing	General Engineering

Technical FAQ & Operational Guide

What are the advantages of a 6-pole motor design for milling?

A 6-pole design significantly increases torque (6.5 Nm) compared to 2 or 4-pole motors. This provides more power at lower speeds, allowing the spindle to maintain RPM under the heavy resistance encountered during metal milling and large-diameter drilling.

What type of inverter is required for this 12kW spindle?

You will need a high-frequency Variable Frequency Drive (VFD) rated for at least 12kW (or 15HP) that supports a 900 Hz output frequency and 380V 3-phase input.

Is the cooling system adequate for 24/7 industrial use?

Yes, the high-flow water cooling system is specifically designed for continuous industrial duty cycles, maintaining internal temperatures and protecting the P4 grade bearings during prolonged operation.

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 12 kW, 18000 RPM, 380 V Water Cooled

High-Performance 12 kW Industrial Power

18000 RPM Optimized for Metal Milling

Superior 6-Pole High-Torque Architecture

High-Frequency 900 Hz Stable Operation

Active Water Cooling for Continuous Duty Cycles

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

⚡ 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: 27 Kg | coolingType: Water Cooled | bodyType: Heavy-Duty Industrial

FREQUENCY

900 Hz

POLE COUNT

6 Pole

BEARING CONFIGURATION

2 x 7008 P4 (Front), 2 x 7006 P4 (Rear)

MODEL NUMBER

WM12180R380M1

POWER RATING

12 kW

OPERATING VOLTAGE

380 V AC (3 Phase)

RATED CURRENT

26 A

RATED TORQUE

6.5 N.m

COLLET INTERFACE

ER32 (2mm - 20mm)

Usage Scenario

Target Industry

Industrial CNC Metal Milling Machines

Metal Fabrication and Foundries

Heavy-Duty Multi-Axis Drilling Centers

Aerospace and Defense Manufacturing

Dense Alloy and Steel Machining

Automotive Tooling and Engineering

Large-Scale Aerospace Component Milling

Industrial Machine Building

Automotive Die and Mold Making

Energy and Heavy Engineering

High-Torque Industrial Routing

General Engineering