7.5 kW Water Cooled CNC Spindle Motor, 24000 rpm, ER32

High quality 7500 watt three phase water cooled CNC spindle motor, works at 3 phase 380V AC 800Hz, 24000rpm, 2.98N·m torque with ER32 (φ3.175mm - φ20mm), suitable for CNC router machines.

Feature

1. Spindle motor with superior durability ER32 collet ensures smooth running.
2. Fast response, strong overload capacity, low noise and high mechanical precision.
3. High quality 4 pcs bearings (7007Cx2 + 7005Cx2), runout off less than 0.01mm, tapered bore less than 0.005mm.
4. P4 grade ceramic ball bearings are used as spindle bearings, which improves the service life under high speed revolution.
5. Lubricated with grease, which is resistant to 200 degrees high temperature.
6. Tight sealing and two-layer dustproof design.

Applications

This series of air-cooled electric spindle motors is designed primarily for use with variable frequency drives or engraving machines, as well as CNC routers. It is ideal for high-speed profiling, drilling, cutting, engraving, and groove milling across a variety of materials, including wood, metal, plastics, foam, and rubber.

Note: Ensure that the spindle motor and VFD are compatible. The VFD’s specifications and parameter settings must align with the spindle motor’s nominal parameters. Incorrect settings can lead to spindle motor damage or burnout.

Specification

Model	CCHN-STZ125-7.5z-ER32
Matched VFD Model	GK3000-4T00110G (15 hp three phase VFD) GK3000-CS00110G (15 hp 1-phase 220V to 3-phase 380V VFD)
Power	7.5 kW
Diameter	φ125 mm
Phase	Three phase
Speed	24000 rpm
Voltage	3-phase 380V±10% AC
Current	16A
Frequency	800Hz
Torque	2.96 Nm
Number of Pole	2 poles
Cooling Type	Water-cooled
Installation Method	Horizontally or Vertically (When the motor is installed, the radial runout standard is required to be within 5um, and the chuck is generally 10um-15um.)
Lubrication	Grease
Thermal Class	Class F
Protection Class	IP50
Certification	CE
Warranty	Bearings for half a year, other parts for one year
Joint of Nose	ER32 (φ3.175 mm - φ20 mm)
Bearings Type	7007C P4*2 & 7005C P4*2
Application	Woodworking & Plastic
Weight	26.5 kg
Download Attachments	7.5 kW Water Cooled Spindle Motor CAD Drawings

Details

Tips: Why use VFD for spindle motor?

• A VFD can make the motor soft start, and the impact on mechanical equipment is small.
  The starting current of the VFD is smaller than that of the contactor, and the more frequent the working condition, the more energy-saving.
• It can be infinitely variable, and it is easy to meet the work requirements of elevators and other requiring smooth speed.
• Convenient for automatic control. The VFD has external control and local control, and can be selected at multiple speeds. With an encoder, the spindle motor can be accurately positioned, and the control is very portable.
• The internal protection is perfect, and variable frequency drives are equipped with various fault protection functions. When the spindle motor or power supply fails, it will actively report the fault, and at the same time output the on-off signal through the relay contact, which is convenient to cut off the external control contactor and output the warning signal.