





- Stock: In Stock
- Model: RDDLZ-SPINDLE-W4500
- Weight: 1.00
- SKU: RDDLZ-SPINDLE-W4500
Available Options
4.5 kW water cooled CNC spindle motor for sale at affordable price, 24000 rpm speed, 2.38 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 are used as spindle bearings, 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 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 | STZ125-4.5-ER25 | ||||
Power | 4.5 kW | ||||
Diameter | φ125 mm | ||||
Phase | Three phase | ||||
Speed | 24000 rpm | ||||
Voltage | 3-phase 380V±10% AC | 3-phase 220V±10% AC | |||
Current | 12A | 14.5A | |||
Matched VFD Model | GK3000-4T0075G (10 hp three phase VFD) | GK3000-4T0055G (7.5 hp three phase VFD) | |||
Frequency | 400Hz | ||||
Torque | 2.38 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 | 23 kg |
Details
Tips: How to Maintain a Spindle Motor?
- The high-speed spindle motor is the core component of the machining machine tool. The correct use and maintenance of the spindle motor has an extremely important impact on the improvement of the machining accuracy of the CNC machine tool and the extension of the service life.
- Do not use compressed air to clean the spindle motor to avoid bringing dust into the spindle gap and damaging the spindle bearing.
- When cleaning the area around the spindle motor, although the spindle is stopped, the machine tool should be powered on, and the spindle bearing should be protected by air curtain.
- When the spindle motor is in use, pay attention that the cutting fluid should be hit on the cutting tool, not on the end of the spindle.
- For the tool mounted on the spindle motor, the handle part must be cleaned regularly with a clean soft cloth to avoid bringing dust into the spindle taper hole. Even when not in use, a tool holder should be reserved on the spindle to protect the spindle taper hole.
- For a new spindle motor or a spindle motor that has not been used for more than one month, it must be ensured to rotate at a low speed when it first starts to work, and it is best to perform the spindle preheating and idling.
- In order to ensure the high precision of the spindle motor, only accurate dynamic balance up-to-standard tools can be used during high-speed operation. It is best to preheat the spindle motor for 30 minutes to reach a thermally stable state for high-precision cutting.