2.2kw Water Cooled Spindle Kit

A 2.2kw ER20 water-cooled spindle kit is a collection of components that are used to build a water-cooled spindle for a CNC (computer numerical control) machine. A spindle is a rotary tool that is used to hold and rotate a cutting or milling tool in a CNC machine. A water-cooled spindle uses water to dissipate heat that is generated by the spindle during operation, which helps to increase its efficiency and lifespan.

The 2.2kw ER20 water-cooled spindle kit typically includes a spindle motor, an inverter, a spindle bracket, and a water pump. The spindle motor is the main component of the spindle and is responsible for rotating the spindle and the cutting tool. The inverter is an electronic device that is used to control the speed and torque of the spindle motor. The spindle bracket is a mechanical fixture that holds the spindle in place in the CNC machine. The water pump is used to circulate water through the spindle to cool it.

To use the 2.2kw ER20 water-cooled spindle kit, you will need to install it in your CNC machine and connect it to the machine’s power and control systems. You will also need to connect the spindle to a water supply and configure the inverter to control the spindle’s speed and torque.

2.2kw ER20 water-cooled spindle kit

  • 220v 2.2kw ER20 4 bearings water cooled spindle
  • 220v 2.2kw inverter/VFD
  • 80mm spindle clamp/bracket
  • 75w water pump &5mwater pipes

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Size:80x230mm(Middle body diameter:80mmxLength:230mm)
Speed Ways: Through a 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 “, and “3” were connected to the inverter (U, V, W), and 4 were connected inverter ground.
Runout Off:Less than 0.01mm
Bearing Type:2 x 7005 P4 DT & 2 x 7002 P4 DT
4pcs fully sealed angular contact bearings
Collet: ER20
Clip Knife Diameter: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, aluminum, Pb, etc soft metal surface working.

  • P4 fully sealed angular contact bearings ,2×7005C P4 DT &2×7002C P4 DT,increase spindle life .(We also have 4 pcs ceramic ball bearings type spindle)
  • Longer lengths make the torque bigger, and more powerful.
  • Careful assembly makes the spindle more precisional.
  • Precision 0.01mm.Coaxial degree less than 0.0025mm.
  • We are the spindle manufacturer, we offer only the best quality and best price to you.

The difference between ceramic ball bearings and Steel ball

  • 1. Our Ceramic ball bearings spindle use4 pcs ceramic ball bearings.
  • 2. Ceramic ball bearings are resistant to high temperatures and low heat, usually 3-5 degrees lower than steel ball bearings during use.
  • 3. Ceramic ball bearings have low friction, low noise, and long service life.
  • 4. If you want to use the spindle for aluminum, or hardwood, then ceramic ball bearings are better than steel ball bearings.

Power: 2.2kw
Input Voltage: 220v
Input Phase: 1
Input Frequency: 50/60Hz
Output Voltage: 220v
Output Phase: 3
Output Current: 10A
Output Frequency: 400Hz
Control Method: V/F control;
(The inverter should be set up before connecting to the spindle, it needs to be set to 400Hz)

1. PID control; advanced calculous PID closed-loop arithmetic.quick responding speed and high suitability.
2. Easy PLC function can realize 16 legs of speed and inverter control function.
3. Rs485 communication can realize 16 legs of speed and inverter control function.
4. With extremely strong anti-jamming capability。
5. Low output ratting torque 0.5HZ-150%,low speed running ability.
6. Carrier adjustable by 16KHZ. completely soundless working environment.
7. Broad voltage working area, normal running in 3.4v-456v
8. Auto voltage regulation (AVR) technique, for ensuring the inverter load capability.
9. Various control techniques by both synchronization and non-synchronization, dynamically realize fast starting without changing brakes.
10. With perfect error protection and short circuit starting protection capability.
11. Read-time compensation and auto torque slip compensation function, can realize 180% high torque output at low-frequency 0.25HZ
12. Unique EMC design, can minimize inverter’s pollution to power.
13. Overall reinforcement layer to suit all kinds of harsh environments.

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

Max Head:3.2 m;
Maximum flow:3200L / H
Plug Cord Length:1.4m
Frequency:50 HZ
Outlet size:4 and 6 mm;
Dimensions:145 * 110 * 90 mm

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

Compared with the aluminum profile fixture, the accuracy is much higher, and it is hard to deform.
The inner wall is very smooth, outer walls are sandblasted, relatively fine and uniform, but not very smooth.
Cast aluminum fixtures are much heavier than aluminum profile fixtures.

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.

The 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. The spindle and the inverter should be working together. The inverter’s specifications and parameter settings need to match the spindle parameter.
Connect the inverter spindle, three-phase inverter power cord should be soldered in the plug 1 (U), 2 (V), 3 (W) feet, and 4 feet for the ground. After the power is turned on, 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 the three-phase power supply.
It should ensure that before the use of a 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 the spindle, collet nuts, collets, and cutters must be clean enough. Shank inserted into the collet must be greater than 15mm.

  • A water-cooled spindle must be used with a water pump. Otherwise, the spindle will soon be broken.
  • AC spindle motor must use with an inverter. The power of the inverter needs equal to or bigger than the spindle power. Before using, please set up the inverter parameters suitable for the spindle. Otherwise, the spindle and inverter will be broken at once.
  • When you use the spindle, the noise is not the same as always, please stop the spindle at once. You may need to replace the spindle bearings.

Water-Cooled spindle and air-cooled spindle differences

1. Cooling in different ways: water-cooled spindle motor uses the water cycle to cool the heat generated after the high-speed rotating spindle, spindle motor with a 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 and frequently changes the water or the use of industrial water coolers, and 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 to use metal, hardwood, granite, or stone, you can choose metal spindles. The metal spindle is much better than the wood spindle.