This 3.7kw water-cooled ATC spindle motor (encoder optional) is designed for high-performance CNC applications that require high speed and precision. Featuring an ISO20 tool interface and 40,000 RPM max speed, this spindle motor offers a reliable solution for engraving, milling, and light machining.
The spindle utilizes a pneumatic automatic tool change system (ATC), ensuring fast and efficient tool replacement, making it ideal for continuous, high-speed operation.
APS80L-20-40Z/3.7KW
APS
380V
1000-1333 HZ
30000-40000 RPM
ISO20
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Product Description
This 3.7kw water-cooled ATC spindle motor (encoder optional) is designed for high-performance CNC applications that require high speed and precision.
Featuring an ISO20 tool interface and 40,000 RPM max speed, this spindle motor offers a reliable solution for engraving, milling, and light machining.
The spindle utilizes a pneumatic automatic tool change system (ATC), ensuring fast and efficient tool replacement, making it ideal for continuous, high-speed operation.
Better heat dissipation at high speeds
More stable machining accuracy
Longer bearing and spindle life
Suitable for long-time continuous operation
The pneumatic ATC mechanism allows fast and stable tool changing, reducing manual intervention and machine downtime.
This significantly improves machining efficiency, especially for multi-process CNC operations.
Standard ISO20 tool holder ensures accurate positioning and repeatability during tool changing
Compatible with most CNC machining centers and ATC tool magazines
Excellent clamping force and strong tool holding stability
Improving productivity and reducing downtime
| Specification | Details |
|---|---|
| Model | APS80L-20-40Z/3.7KW |
| Power | 3.7 KW |
| Cooling Method | Water cooling |
| Tool Interface | ISO20 |
| Speed Range | 30000-40000 RPM |
| Voltage | 380V |
| Frequency | 1000-1333 Hz |
| Tool Change Method | Pneumatic ATC |
| Runout | ≤ 0.001 mm |
| Max torque | 1.43 Nm |
| ATC Sensor | PNP/NPN |
| Encoder | (sin/cos wave)/square wave/new generation |
| Net Weight | ≈4 kg |
| Lubrication | Grease |
| Applications | PCB drilling and routing, Mold and die engraving, Precision parts machining, High-speed CNC routers, CNC engraving machines |
3.7kW Water-Cooled ATC Spindle Motor, 40000 RPM, ISO20, Pneumatic Tool Change.pdf
CNC engraving machines
PCB drilling and routing
Mold and die engraving
Precision parts machining
High-speed CNC routers
Custom interface (ISO20/ISO25)
Custom power, speed, voltage, logo options
OEM solutions for machine builders
Electrical Connection: Connect U, V, W phases and protective earth per wiring diagram.
Cooling: Connect water inlet/outlet hoses; ensure water pump flow is stable.
Air Supply: Provide regulated clean air (if pneumatic tool change/air seal needed).
ATC Sensor: Connect PNP or NPN sensor wiring to the CNC control tool changer interface.
(Manufacturer wiring diagram and installation manual should be followed strictly.)
Inner protective foam case.
Outer plywood shipping box.
Optional: Custom-branded packaging available.
CE certification
EMC certification
LVD certification
quality certification
ROHS certification
UKCA certification
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JST Workshop
JST Workshop
JST Workshop
JST Equipments
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Packing
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Yes — multiple voltage configurations are available upon request.
Yes, a water chiller or recirculating cooling system is required to maintain stable coolant temperature. Water cooling provides superior heat dissipation for heavy-duty use and long continuous cutting periods.
Yes. A properly matched variable frequency drive (VFD) is required to run the spindle safely and efficiently.
Regularly check water cooling lines, hoses, and connectors to ensure leak-free and clean cooling;
Ensure proper VFD setup. Bearings are sealed and greased, so no frequent lubrication is needed.
Every spindle motor has one year(12 months) warranty.
Yes welcome warmly. No. 8 Hengcui Road, Henglin Town, Changzhou Economic Development Zone, Jiangsu Province, China.
1.The electric spindle motor and VFD shall be suitable with each other. The specifications and parameter settings of the VFD shall match the nominal parameters of the spindle motor, and it will burn the spindle motor if the settings are not correct. (Therefore, the spindle motor must be connected to VFD at first.)
2.Before using water-cooled spindle motor, it shall ensure that cooling cycle system works normally. Please notice: the running under no cooling conditions is prohibited! The volume of cooling water is calculated as per 1 liter/minute, the minimum flow of cooling water is not less than 5 liter/minute, cooling water pipe and the nozzle shall be connected reliably and there is no leakage.
3.The cooling liquid shall be clean and free of grease and the temperature shall be within 5-30℃. The cooling medium shall carry out force cooling when the ambient temperature is higher than 30℃. The precision lathe requires the cooling liquid with a constant temperature of 20±2℃.
4.Important! The coolant temperature must be within 5℃ of the ambient temperature; ideally, the coolant temperature should be 5℃ lower than the ambient temperature. Otherwise, if the temperature difference is too large, condensation may form inside the electric spindle, leading to spindle damage.
5.If use water cooling machine, its temperature shall be within 22-25℃.
6.During storage and transport of the spindle motor, the status of high-speed grease inside the bearing will change. So, user shall run it at a low speed first by starting from the lowest speed of the spindle motor for 30 minutes and then 20 minutes for every 3000 rounds when they first time receiving spindle motors. Otherwise there will have abnormal sound, noise, heat and other phenomena, which will affect the bearing life if the spindle motor is started directly at a high speed. During long term storage, the spindle motor shall run (at low speed) for 15-30 minutes once a week at least.
7.Before daily machining, the spindle motor shall be warmed up, run for 15-20 minutes when the machining speed is reached and then performs precise machining. It is better to stop the spindle motor for two hours every day in order to recover its mechanical fatigue and prolong its life time.
8.The spindle motor adopts vapor lock and the gas source shall not be used until it has passed oil-water separator and dry filter. The air pressure is 0.2-0.25Mpa and the filtering precision is 5μm, otherwise there will cause damages to the bearing. Therefore, a good oil-water separator is essential.
9.Collet, nut and inner taper hole shall be cleaned when installing blades on the spindle motor in order to avoid any impact on the precision. The blade handle shall be inserted into the collet more than 15mm.
10.No hammering the end cover of the spindle motor. No hammering the collet and blade head when removing blades. No shocking or colliding during transport, storage and using, especially pay attention to the end of the spindle motor.
11.The spindle motor shall run in designated direction. (We will indicate the direction with an arrow.)
12.The spindle motor shall be installed and fixed according to the relevant drawings and instructions.
Spindle motor is also called high-speed electric spindle motor, refers to the revolution of a more than 10000 RPM AC motor. It has the advantages of fast speed, small size, lightweight, low material consumption, low noise, and low vibration, mainly used in wood, aluminum, stone, hardware, glass, PVC, and other industries.
Due to its wide application and meticulous work, fast speed, and excellent processing quality, making another ordinary motor can not meet the technical requirements of the spindle motor. Spindle motor plays an important role in the industrial production process, so it is particularly popular all over the world.
