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RATTMMOTOR 1.5KWB110V-ER11 Water-Cooled CNC Spindle Motor Kit1 / 7
Product guide

RATTMMOTOR 1.5KWB110V-ER11 Water-Cooled CNC Spindle Motor Kit

RATTMMOTOR 1.5KWB110V-ER11 is a water-cooled CNC spindle kit listed with a 110-volt motor, VFD, pump, mount, pipe and ER11 collets. Its 0–24000 rpm range is paired with a stated minimum operating speed of 9000 rpm, so it is intended for compatible CNC setups that can accommodate water cooling and that operating limit.

At a glance

  • The listing describes a water-cooled spindle paired with a single-phase-input, three-phase-output VFD.
  • The stated speed span is 0-24000RPM, with a separate instruction not to operate below 9000 rpm.
  • The package list names a motor, VFD, 80mm mount, 80W pump, 5m pipe and 14 ER11 collets.
  • The VFD description lists a five-digit display and status indicators for operating values and direction.
Price
$181.60Save 20%

Reference price: $227.00

Price checked: Nov 14, 2026

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Pros and cons

Pros

  • The stated kit contents combine the spindle, drive, pump, mount, pipe and a range of ER11 collets, reducing the need to source those listed components separately.
  • The listing gives 14 collet sizes, including 3.175mm, for different supported shank diameters.
  • The VFD is described with single-phase input and three-phase output, matching the listing's intended spindle-drive arrangement.

Cons

  • The spindle is water-cooled, so operation depends on a working coolant circulation setup rather than an air-only arrangement.
  • The stated minimum operating speed of 9000 rpm limits the useful lower end despite the listed 0-24000RPM range.

Technical specifications

27 specifications
Identity
BrandRATTMMOTOR
Model1.5KWB110V-ER11
Motor
Rated power1.5 KW
Wattage listed1500 watts
Voltage110 volts
Speed24000 rpm
Speed range0-24000RPM
Minimum operating speed stated9000 rpm
Current10A
Frequency0-400Hz
Size80x188mm
Collet typeER11
Accuracy0.003--0.005
Runout listedLess than 0.01mm
VFD
Input voltage110V(+/-15%)
Output voltage110V
Input frequency50-60 Hz
Output frequency0-1000 Hz
Input phase1 phase
Output phase3 phase
Water pump
Power80W
Voltage110V/50HZ
Flow3500L/H
Maximum head3.5M
Dimensions and installation
Weight listed8.1 kg
Mount size80mm
Materials and protection
Material listedStainless Steel

What to know before buying

  • Motor wiring instructions assign spindle plug terminals 1, 2 and 3 to VFD U, V and W respectively, and identify terminal 4 as ground. Follow the supplied wiring instructions for installation.

Listing details to confirm

Listing details are contradictory or inconsistent: the VFD output-frequency range is given as 0-1000 Hz in one section, while the spindle frequency is listed as 0-400Hz elsewhere and 400HZ in the feature text. Spindle speed is described both as 24000 rpm and 0-24000RPM, alongside a minimum-use instruction of 9000 rpm. The listed 110V/50HZ pump specification also differs from the A+ listing's 110V AC. Confirm the relevant ratings and selected kit details before purchase. The spindle instructions also say it must not only rotate clockwise or counterclockwise. The pump instructions say the submersible pump should be completely immersed while operating to provide cooling.

Who is it for?

A good fit for

  • CNC owners seeking a water-cooled spindle kit with a VFD and listed pump, mount, tubing and ER11 collets.
  • Setups using compatible 80mm mounting and ER11 tooling that can maintain the stated minimum spindle speed.
  • Users working with the listed engraving materials such as wood, plastic, acrylic, PVC, PCB, carbon fiber and soft metals, subject to machine and tooling suitability.

Less suited to

  • Buyers who need a spindle to run below 9000 rpm.
  • Setups without a suitable water-cooling arrangement or compatible 80mm mounting.
  • Buyers who require unambiguous frequency and pump specifications without confirming the inconsistent listing details.
RATTMMOTOR 1.5KWB110V-ER11 Water-Cooled CNC Spindle Motor Kit · photo 2
Additional product photo 2

Customer reviews on Amazon

5 / 5 · 5 ratings
  • 5 stars100%100%
  • 4 stars0%0%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

The supplied evidence contains only aggregate ratings, with a small number of ratings all in the five-star category. That is a limited positive signal, but it does not identify what customers liked or establish performance. For buyers, the kit's water-cooling requirement and the listing's conflicting frequency details remain important checks regardless of the rating pattern.

Frequently asked questions

What is included in the listed kit?

The package list specifies one water-cooled ER11 spindle motor, one 1.5KW 110V VFD, one 80mm mount, one 80W pump, one 5m pipe and 14 ER11 collets in the stated sizes.

What speed range does the spindle support?

The listing gives 0-24000RPM, but separately says the spindle must not be operated below 9000 rpm. It also gives differing frequency values, so confirm the applicable drive and motor settings.

Is this an air-cooled spindle?

No. The listing identifies it as water-cooled and includes an 80W water pump. The pump instructions say it must be fully immersed during operation.

What materials does the listing say it can engrave?

It names wood, plastic, acrylic, PVC, PCB, carbon fiber, density board and soft metals such as copper and aluminum. Actual suitability depends on the CNC machine, tooling and setup.

RATTMMOTOR 1.5KWB110V-ER11 Water-Cooled CNC Spindle Motor Kit · photo 3
Additional product photo 3

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