1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your KIRANDY GDF60-18Z-6.0KW Air-Cooled Spindle Motor ER32. This high-speed electric spindle is designed for precision applications in CNC milling, routing, and engraving across various materials.
Figure 1: KIRANDY GDF60-18Z-6.0KW Air-Cooled Spindle Motor
2. Safety Information
WARNING: Read all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Always ensure the power supply is disconnected before performing any installation, maintenance, or troubleshooting.
- The working environment temperature of the spindle should be between -10°C and 40°C.
- Ensure proper grounding of the spindle and inverter.
- Wear appropriate personal protective equipment (PPE), including eye protection, during operation.
- Keep hands and loose clothing away from rotating parts.
- Do not operate the spindle if it is damaged or malfunctioning.
Figure 2: Spindle motor with general application information.
3. Product Features and Components
The GDF60-18Z-6.0KW spindle motor features a robust design for high-precision machining. Key components include:
- ER32 Chuck: For secure tool clamping.
- Air Cooling System: Efficient heat dissipation for prolonged operation.
- High-Precision Bearings: Equipped with H7008 P4*2 and H7002C P4*2 (4 bearings total) for extended lifespan and accuracy.
- 5-Pin Waterproof Aviation Adapter: For reliable power connection.
Figure 3: Spindle motor with included ER32 collet, collet nut, and wrench.
4. Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Model | GDF60-18Z-6.0 | Chuck Type | ER32 |
| Power | 6.0 kW | Rotating Speed | 0-18000 rpm |
| Voltage | 220V / 380V | Frequency | 0-300 Hz |
| Current | 12A | Cooling Method | Air Cooling |
| Jump Close | < 0.01mm | Lubrication | Grease |
| Bearing Type | H7008 P4*2, H7002C P4*2 (4 bearings) | Clamping Tool Diameter | 1mm - 20mm (ER32) |
Figure 4: Detailed specifications of the spindle motor.
5. Setup
5.1 Initial Inspection
Before installation, rotate the spindle head by hand. It should feel flexible and free of any blockage. Ensure all components are present and undamaged.
5.2 Mounting
Mount the spindle securely using the provided mounting flange. Refer to the dimensional drawing for precise mounting hole locations and overall dimensions.
Figure 5: Dimensional drawing for spindle mounting.
5.3 Electrical Connection
The spindle requires a three-phase inverter for operation. Ensure the inverter specifications and parameter settings match the spindle parameters.
- Connect the three-phase inverter power cord to the aviation adapter pins:
- Pin 1 (U)
- Pin 2 (V)
- Pin 3 (W)
- Connect Pin 4 (GND) to the inverter ground.
After connecting the power, observe the spindle rotation direction. If it is incorrect, consult your inverter manual for phase reversal instructions.
Figure 6: Wiring diagram for connecting the spindle to an inverter.
5.4 Initial Run-in Procedure
When the spindle has been stored or transported, the bearing grease condition may change. Perform the following run-in procedure:
- Run the spindle at a low speed (e.g., 2000-3000 rpm) for 30 minutes.
- Gradually increase the speed by 3000 rpm increments, running for 20 minutes at each increment, until the desired operating speed is reached.
6. Operating Instructions
6.1 Speed Regulation
The spindle speed is regulated by adjusting the frequency output of the three-phase inverter. Refer to your inverter's manual for detailed instructions on frequency adjustment.
6.2 Tool Clamping
Use ER32 collets to clamp tools with diameters ranging from 1mm to 20mm. Ensure the collet nut is tightened securely to prevent tool slippage during operation. The ER32 collet nut is designed for high grinding inner cone precision of 0.01mm.
6.3 Applications
This spindle is suitable for engraving and milling various materials, including:
- Wood
- Normal PCB
- PVC
- PMMA plastic
- Duotone board (ABS)
- Other non-metal materials
- Soft metals such as gold, silver, copper, aluminum, and lead.
7. Maintenance
7.1 Cleaning
Regularly clean the spindle motor to prevent dust and debris buildup, especially around the cooling fins and chuck area. Ensure power is disconnected before cleaning.
7.2 Bearing Care
The spindle uses P4 fully sealed angular joint bearings designed for high temperature and low heat, offering low friction, low noise, and a long service life. Proper run-in procedures and operating within specified temperature ranges will help maintain bearing integrity.
8. Troubleshooting
- Spindle not rotating: Check power connections, inverter settings, and ensure the emergency stop is not engaged.
- Incorrect rotation direction: Verify inverter phase wiring. Consult your inverter manual for instructions on reversing motor direction.
- Excessive noise or vibration: Check for loose mounting, unbalanced tools, or potential bearing issues. Discontinue use and inspect.
- Overheating: Ensure adequate airflow for the air-cooling system. Check for obstructions around the cooling fins.
9. Warranty and Support
This product comes with a warranty for:
- Bearings: 6 months
- Coil: 1 year
For technical support or warranty claims, please contact your vendor or the manufacturer with your product model number and purchase details.