The APS125D-ER32-24Z/7.5KW is a high-speed manual tool change (MTC) CNC spindle motor engineered for professional machining applications requiring outstanding accuracy, reliability, and long service life.
Featuring 7.5kW rated power, 24,000 RPM maximum speed, and a precision ER32 collet system, this spindle delivers excellent cutting performance for wood, plastics, composites, aluminum, acrylic, MDF, and other non-ferrous materials.
Its water-cooled design ensures superior thermal stability during continuous operation, while the 6-pole asynchronous motor provides smooth power delivery, low vibration, and excellent machining accuracy. Combined with a high-rigidity bearing arrangement, the spindle is an ideal solution for CNC routers, engraving machines, woodworking equipment, mold manufacturing, and light metal processing.
APS125D-ER32-24Z/7.5KW
APS
300V/380V
300-1200 HZ
6000-24000 RPM
ER32
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Product Description
The APS125D-ER32-24Z/7.5KW is a high-speed manual tool change (MTC) CNC spindle motor engineered for professional machining applications requiring outstanding accuracy, reliability, and long service life.
Combined with a high-rigidity bearing arrangement, the spindle is an ideal solution for CNC routers, engraving machines, woodworking equipment, mold manufacturing, and light metal processing.
Compared with air-cooled spindles, the water cooling system provides:
Better heat dissipation
Lower operating temperature
Longer bearing life
Reduced thermal deformation
Stable performance during long production cycles
Lower operating noise
This makes it particularly suitable for industrial continuous-duty applications.
The industry-standard ER32 collet offers:
Wide tool diameter compatibility
Excellent concentricity
Secure tool clamping
Quick manual tool replacement
Lower tooling costs
Ideal for routers, engraving tools, milling cutters, drill bits, and various CNC cutting tools.
The spindle adopts a Front 2 + Rear 2 precision bearing configuration, providing:
Higher radial rigidity
Improved axial stability
Lower vibration
Better machining accuracy
Longer service life
The optimized bearing arrangement supports both high-speed operation and demanding cutting loads.
| Specification | Details |
|---|---|
| Model | APS125D-ER32-24Z/7.5KW |
| Power | 7.5 KW |
| Cooling Method | Water cooling |
| Interface | ER32 |
| Speed Range | 6000-24000 RPM |
| Voltage | 300V/380V |
| Frequency | 300-1200 Hz |
| Tool Change Method | MTC |
| Runout | ≤ 0.001 mm |
| Max torque | 15.9 Nm |
| ATC Sensor | / |
| Net Weight | ≈20 kg |
| Lubrication | Grease |

7.5kW Water-Cooled MTC Spindle Motor, 24000 RPM, ER32, 6 poles.pdf
CNC Router Machines
CNC Engraving Machines
Woodworking CNC Machines
Cabinet & Furniture Manufacturing
Acrylic Processing
Plastic Machining
Composite Material Processing
Mold Manufacturing
Aluminum Milling
Sign Making
Advertising Equipment
Precision Component Manufacturing
Over 20 years of spindle manufacturing experience
Strict quality inspection before shipment
Precision dynamic balancing
High-quality bearing system
Stable machining performance
Competitive factory pricing
Fast worldwide delivery
Professional technical support
OEM & ODM services
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).
(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
JST Company Outside
JST Workshop
JST Workshop
JST Workshop
JST Equipments
JST Equipments
Packing
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Yes. The water-cooled design provides efficient heat dissipation, making it suitable for long-term continuous operation.
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.
It can machine wood, MDF, plastics, acrylic, composites, aluminum, brass, copper, and other non-ferrous materials.
Manual tool change spindles offer a simpler structure, lower investment cost, easy maintenance, and excellent reliability, making them ideal for many CNC routing and engraving applications.
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.
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