6 kW Water Cooled CNC Spindle Motor, 24000 rpm, ER25

6 kW water cooled CNC spindle motor, 24000 rpm speed, 3.18 Nm torque, 400Hz frequency, 3 phase 220V/380V AC operating voltage, ER25 (φ3.175 mm - φ16 mm) collet.

Feature

• Spindle motor with superior durability ER25 collet ensures smooth running.
• Fast response, strong overload capacity, low noise and high mechanical precision.
• High quality 4 pcs bearings (7007Cx2 + 7005Cx2), runout off less than 0.01mm, tapered bore less than 0.005mm.
• P4 grade ceramic ball bearings used as spindle bearing, which improves the service life under high speed revolution.
• Lubricated with grease, which is resistant to 200 degrees high temperature.
• Tight sealing and two-layer dustproof design.

Application

This series water cooled electric spindle motors mainly match with variable frequency drives or engraving machines, CNC router machine, and used for high speed profiling, drilling, cutting, engraving and groove milling of wood, metal, plastics, foam, rubber and other materials.

Note: The 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. Otherwise, it will burn the spindle motor if the settings are not correct.

Specification

Model	STZ125-6.0z-ER25
Matched VFD Model	GK3000-4T0075G (10 hp three phase VFD) GK3000-CS0075G (10 hp 1-phase 220V to 3-phase 380V VFD)
Power	6 kW
Diameter	φ125 mm
Phase	Three phase
Speed	24000 rpm
Voltage	3-phase 380V±10% AC
Current	14.5A
Frequency	400Hz
Torque	3.18 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	ER25 (φ3.175 mm - φ16 mm)
Bearings Type	7007C P4*2 & 7005C P4*2
Application	Woodworking & Plastic
Weight	25 kg
Download Attachments	6 kW Water Cooled Spindle Motor CAD Drawings

Details

Tips: High Speed Spindle Motor Internal Structure

1. The main rotating body of the high-speed spindle motor is the shaft. Manufacturing accuracy directly affects the final accuracy of the spindle motor. The finished product has high requirements for the dimensional accuracy of the rotating shaft. When the rotating shaft is running at high speed, the eccentric mass causes vibration, which seriously affects its dynamic performance. Therefore, strict dynamic balance testing of the rotating shaft is required. The parts installed on the shaft should also be tested for dynamic balance along with the shaft.
2. The core supporting component of the high-speed spindle motor is a high-speed precision bearing. Because the higher speed of the motor spindle depends on the function, size, arrangement and lubrication method of the bearing. Therefore, this kind of bearing needs to have the advantages of good high-speed performance, high dynamic load carrying capacity, good lubrication performance, and low heat generation.
3. Whether the high-speed motor spindle is in good condition is also greatly affected by the lubrication system. The typical lubrication method is to use oil mist lubrication or air-oil mixture lubrication. The former is mainly to atomize the lubricating oil to lubricate the bearing, and the lubricating oil cannot be recycled, which causes serious air pollution. The latter is to directly blow the lubricating oil into the bearing with high-pressure air, which not only lubricates but also plays a role in heat dissipation.