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S&D Engraving Services Limited

CNC 3.2kw ER20 Water cooled spindle 3.2kw updated water cooling spindle motor for CNC Router engraving machine!

CNC 3.2kw ER20 Water cooled spindle 3.2kw updated water cooling spindle motor for CNC Router engraving machine!

Regular price £531.99 GBP
Regular price £691.99 GBP Sale price £531.99 GBP
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Water Pump Type: 75w 220v 3200 L/H

Voltage: 220v/380v

Spindle Clamp: 100mm

Size: 100x250mm

Power: 3.2kw (1HP=735w)

Origin: Mainland China

Operating Speed: 0-24000rpm

Model Number: 3.2kw water cooled spindle motor

Maximum Torque: 1.27N.m

Inverter Type: HY 4.0kw 400Hz

Frequency: 400Hz

Drive: Motor

Current: 15A/8A

Cooling: Water cooled

Collet Range: 1-13mm (Including 1/4,1/8,1/2)

Collet: ER20

Certification: CE


Bearing Type: 2 X 7005C P4 DT and 2X 7003C P4 DT

Application: Milling

Application: Milling, Engraving

1 & 220v 3.2kw ER20 4 bearings water cooled spindle

1 & 220v 4.0kw HUANYANG inverter/VFD

1 & 100mm spindle clamp/bracket

1 & 75w water pump & 5m water pipes

1 kit ER20 high accuracy collet (≤0.008mm) --- 4,6,8,10,12,1/2,1/4,1/8 (As gift)

There are 4 labyrinth seal in the front section of the spindle,Prevents lubricant leakage from bearings and intrusion of harmful impurities (dust, moisture, corrosive gases) and bearing seals under high-speed conditions.

  • Size:100x250mm(Middle body diameter:100mm;Length:250mm)

  • Speed Ways:Through 3-phase output inverter and adjust the inverter frequency to change the spindle speed.

  • Cooling:Water cooling

  • Power Interface:Optional H20-4 pins waterproof air plug. The air plug marked "1 ","2"," 3"," 4", "1 ","2 ","3" were connected to inverter (U, V, W), 4 connected inverter ground.

  • Power:3.2kw

  • Voltage:220v/380v

  • Current:15A/8A

  • Frequency:0-400Hz

  • Speed:0-24000rpm

  • Runout Off:Less than 0.01mm

  • Diameter(mm):100

  • Bearing Type:2 x 7005 P4 DT & 2 x 7003 P4 DT

  • 4pcs fully sealed angular contact bearings

  • Collet:ER20

  • Clip Knifediameter:13mm,12mm,12.7mm,11mm,10mm,9mm,8mm,7mm, 6.35mm,6mm, 5mm, 4mm, 3.175mm, 3mm, 2mm, 1mm(standard 6mm)

  • Water Cooling ER20 collet chunk

  • Grease Lubrication

  • Main Application:Engrave for wood,bamboo,normal PCB,PVC,PMMA,plastic,bamboo,duotone board(ABS)and etc nonmetal,also can engrave on gold,silver,copper,aluminium,Pb etc soft metal surface working.

P4 fully sealed angular contact bearings ,2×7005C P4 DT &2×7003C P4 DT,increase spindle life .Longer length make the torque bigger,more powerful. Carefull assembly make the spindle more precisional.

Precision 0.01mm.Coaxial degree less than 0.0025mm Shipment within 4 days,promise the delivery time. We are the spindle manufacturer,we offer only best quality and best price to you.

Pay attention: The spindle size is 100x250mm, bigger torque.

The voice of the spindle is very low,almost no vibration.

1.Our Ceramic ball bearings spindle use4 pcs ceramic ball bearings.

2.Ceramic ball bearings are resistant tohigh temperatures and low heat, usually 3-5 degrees lower than steel ball bearings during using .

3.Ceramic ball bearings havelow friction, low noise and long service life.

4.If you want to use the spindle for aluminum, hard wood, then ceramic ball bearings better than steel ball bearings.

Inverter Type:Huanyang 220v 4.0kw

Input Voltage:220V(+/-15%)

Output Voltage:220vAC

Input Frequency:48-63 Hz

Output Frequency:0-400 Hz

Input Phase:1 or 3 phase

Output Phase:3 phase

Warranty:1 year from the date you purchased

  • PID control; advanced calculus PID closed-loop arithmetic, quick responding speed and high suitability;

  • Easy PLC function can realize 16 legs of speed and inverter control function;

  • RS485 communication port, adopting standard international MODBUS main circuit control;

  • With extremely strong anti-jamming capability

  • Low output ratting torque0.5HZ-150%, low speed running ability;

  • Carrier adjustable by 16KHZ, completely soundless working environment;

  • Broad voltage working area, normal running in 304V-456V;

  • Auto voltage regulation (AVR) technique, for ensuring the inverter load capability;

  • Various control technique by both synchronization and non-synchronization, dynamically realize fast starting without changing brakes;

  • With perfect error protection and short circuit starting protection capability;

  • Dead-time compensation and auto torque slip compensation function, can realize 180% high torque output at low frequency 0.25Hz;

  • Unique EMC design,can minimize inverter's pollution to power;

  • Overall reinforcement layer to suit all kinds of harsh enviroment;

DO NOT set up the inverter by yourself if you don't know how to, or it will make both the spindle and inverter burn easily.

Please contact us, we have manuals, videos and pictures to help you.


Material:Cast Aluminium


Compared with thealuminiumprofile fixture,the accuracy is much higher , and it is hard to deform.

Inner wall is very smooth,  outer walls is sandblasted, relatively fine uniform,  but not very smooth.

Cast aluminiumfixtureis much heavier thanaluminiumprofile fixture

Product Description

Cast aluminium fixture is high quality aluminium which is casting with a special manufacturing process ,compared with ordinary aluminium ,This product has toughness, strong shock resistance, high hardness and strong antioxidant activity.


Cast aluminium fixture is mainly used for fixation of ancillary products, thereby ensuring the verticality of balancing and ancillary products, ancillary products to improve running accuracy, reduce noise, reduce the accumulated error.

Max Head: 3.2 m;

Power: 75w;

Maximum flow:3200L / H

Plug Cord Length: 1.4m

Voltage: 220V;

Frequency: 50 HZ

Outlet size: 4 and 6 mm;

Dimensions: 125 * 105 * 90 mm


High Lift / Large Flow Rate / Highly Durable / Excellent Insulation / Can cool the machine quickly / Good quality and long life / Large inventory / Big strong power


The shell is made of high quality plastic, which is anti corrosive and high durable.
Pumps have excellent insulation thanks to the motor bearing completely sealed.
Pumps combione pumping, filtered,oxygen and fountains in one.


Must be used in the water.
Must cut off the electricity once the product works improperly and must maintain it after lifting it from the water.

Type: ER20 High accuracy collet

Material:65Mn Steel

Quantity: 8 pcs(4mm,6mm,8mm,10mm,12mm,1/4(6.35mm),1/8(3.175mm),1/2(12.7mm))

Precision ≤ 0.008mm

Hardened & Precision ground

Widely used in boring, milling, drilling, CNC milling machine wire tapping,engraving spindle machines,machining centers and other processing.

Spindle working environment temperature is usually -10  ~ 40 .

Before installing the first electric spindle axis head turned by hand, should feel flexible, non-blocking phenomenon.

Spindle in the preservation and transportation, high-speed grease inside the bearing state will change, customers should be running at low speed for 30 minutes. 3000 rpm and then follow the poor increase, run 20 minutes each. Spindle and the inverter should be working together. The inverter's specifications and parameter settings need match spindles parameter.

Connect the inverter spindle, three-phase inverter power cord should be soldered in the plug 1 (U), 2 (V), 3 (W) feet, 4 feet for the ground. After the power is turned on, to observe whether the spindle rotation axis indicates the direction consistent. If inconsistency should be immediately shut down, replace the inverter and spindle connected two wires of three-phase power supply.

It should ensure that before use of water-cooled spindle, the cooling system is working properly. Every day before using the spindle must be running at low speed for 15-20 minutes. Clamping the cutters to spindle, collet nuts ,collets,cutters must be clean enough. Shank inserted into the collet must be greater than 15mm.

  • Water cooled spindle MUST be used with water pump. Otherwise the spindle will soon broken.

  • AC spindle motor MUST use with inverter. The power of inverter need equal or bigger than the spindle power. Before using,please set up the inverter parameters suitable for spindle. Otherwise the spindle and inverter will broken at once.

  • When you use the spindle,the noise is not same as always,please STOP the spindle at once. You may need to replace the spindle bearings.

Before shipping , we did the oil seal to avoid the rust during the long shipment. When you get the spindle, please clearing the oil seal before using. Thank you.

1. Cooling in different ways: water-cooled spindle motor is the use of the water cycle to cool the heat generated after the high-speed rotating spindle, spindle motor with fan-cooled approach to cooling.

2. Noise: Water-cooled spindle motor is basically no noise, but the air-cooled spindle motor is very loud.

3. Life aspects: Water-cooled spindle motor pay attention to maintenance, frequently changes the water or the use of industrial water coolers, air-cooled spindle fan mainly by the wind blowing the heat transferred to the heat sink, so as to achieve the cooling effect.

4.If you need use for metal ,hard wood,granite,stone,you can choose metal spindle.Metal spindle much better than wood spindle.

Spindle from the production - assembly - test, and finally the perfect packaging .

We will 100% guarantee security to the hands of the guests.

Shipping Cost

Our products are sold worldwide.

If you need many items in the same time, please contact us in advance to confirm shipping cost.


We accept paypal credit, bank transfer, western union etc.

Payment must be made within 7days calendar days of the auction end time.

Problem and Feedback:

PLEASE DON'Tleave any negative feedback before you contact us.

We are honest and helpful supplier , we will try our best to solve problems with you.

Your satisfaction is very important for our store, so please contact us before you want to leave a negative feedback.

Thanks very much in advance.


If you areNOT SATISFIEDwith our package like the products is damage, please do not sign it and contact us immediately.

If it is possible, please take some photos or make a small video about it. It will help us to solve the problems.


We can produce the product according to our customer's design.

If you need something is very special, please contact us about it.

We are willing to help you about it.


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