Introduction
This manual provides essential information for the safe and efficient operation and maintenance of your HLTNC High Performance CNC Air-Cooled Spindle and matching Variable Frequency Drive (VFD) kit. This kit is designed for precision engraving and machining applications in various industries, including 3D printing, general CNC machining, textile manufacturing, and cutting operations. Please read this manual thoroughly before installation and use.
The kit includes:
- 1 x 3.5KW Square Air-Cooled Spindle (with junction box)
- 1 x YL620-H 4KW 220V Vector Frequency Changer (VFD)
- 1 set of ER25 Spindle Collets (various sizes)
Safety Information
Always observe general electrical safety precautions. Ensure proper grounding and use appropriate personal protective equipment (PPE) during installation and operation. Disconnect power before performing any maintenance or adjustments.
Setup and Installation
Component Identification
Wiring Diagram (220V)
The following diagram illustrates the correct wiring for the 220V system. Ensure all connections are secure and follow local electrical codes.
- Power Input (220V): Connect the Neutral (N) and Live (L) wires from your 220V power source to the corresponding terminals on the VFD.
- Spindle Motor Output: Connect the U, V, W terminals from the VFD to the corresponding U, V, W terminals on the spindle motor.
- Grounding: Ensure the Ground Lead is properly connected from the VFD to a reliable earth ground, and from the spindle motor to the VFD.
- Brake Resistance: Connect the brake resistance to the designated terminals on the VFD if required for your application.
Caution: Incorrect wiring can cause damage to the equipment or pose a safety hazard. If you are unsure, consult a qualified electrician.
Collet Installation
The spindle uses ER25 collets. To install a collet and tool:
- Ensure the spindle is powered off and stationary.
- Thread the collet nut onto the collet.
- Insert the cutting tool into the collet.
- Insert the assembled collet and tool into the spindle chuck.
- Tighten the collet nut using the appropriate wrench until the tool is securely held. Do not overtighten.
Operating Instructions
The VFD controls the spindle's speed and direction. Refer to the VFD's specific manual for detailed programming and operation instructions. Generally, the VFD allows for adjustment of frequency (and thus RPM) to match your machining requirements.
Cooling System
This spindle features an integrated air-cooling system. Air circulation is used to dissipate heat generated during high-speed operation, which helps to extend the motor's life.
Ensure that the cooling fan vents are not obstructed to allow for proper airflow.
Maintenance
- Regular Cleaning: Keep the spindle and VFD free from dust, chips, and debris. Use compressed air to clean cooling fins and vents.
- Collet Inspection: Periodically inspect collets for wear or damage. Replace worn collets to ensure proper tool gripping and accuracy.
- Wiring Check: Routinely check all electrical connections for tightness and signs of wear or corrosion.
- Bearing Life: The spindle is equipped with 4 steel bearings. While designed for durability, excessive vibration or unusual noise may indicate bearing issues.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Spindle not rotating | No power to VFD, incorrect VFD settings, motor wiring error. | Check power supply, verify VFD parameters, inspect motor wiring as per diagram. |
| Excessive vibration or noise | Unbalanced tool, worn bearings, loose mounting. | Ensure tool is balanced and correctly installed, check spindle mounting, consider bearing inspection if persistent. |
| Spindle overheating | Obstructed cooling vents, prolonged heavy load, high ambient temperature. | Clear cooling vents, reduce load or operating time, ensure adequate ventilation in workspace. |
| Inaccurate machining | Loose tool/collet, worn tool, spindle runout. | Re-tighten collet, replace tool, check for spindle runout. |
Specifications
3.5KW Air-Cooled Spindle (Model: GDZ 105X102-3.5)
| Parameter | Value |
|---|---|
| Model Number | GDZ 105X102-3.5 |
| Power | 3.5KW |
| Voltage | 220V |
| Frequency | 300Hz |
| Electric Current | 11.8A |
| Rotational Speed | 18000 RPM |
| Chuck Head (Collet Type) | ER25 |
| Net Weight | 8 kg |
| Material | Aluminium Alloy Housing |
| Bearings | 4 steel bearings |
| Cooling Type | Air-cooled |
4KW YL620-H-220V Frequency Converter (VFD)
| Parameter | Value |
|---|---|
| Model | YL620-H |
| Power | 4KW |
| Voltage | 220V |
| Input | AC200V-240V 22A 50/60HZ |
| Output | 3PH AC 0-240V 17A 0-3200HZ |
| Net Weight | 3 kg |
ER25 Collet Sizes
The kit includes a variety of ER25 collets for different tool shank diameters:
- Φ1 mm
- Φ2 mm
- Φ3 mm
- Φ3.175 mm (1/8 inch)
- Φ4 mm
- Φ5 mm
- Φ6 mm (x2)
- Φ7 mm
- Φ8 mm
- Φ9 mm
- Φ10 mm
- Φ11 mm
- Φ12 mm
- Φ13 mm
User Tips
- VFD Parameter Tuning: For optimal performance and longevity, carefully tune the VFD parameters (e.g., acceleration/deceleration times, maximum frequency) according to the spindle's specifications and your application needs. Refer to the VFD's manual for detailed instructions.
- Break-in Procedure: It is recommended to perform a break-in procedure for new spindles. Run the spindle at low RPMs (e.g., 6000 RPM) for 30 minutes, then gradually increase RPM in steps, allowing it to run for 30 minutes at each step, up to the maximum rated speed. This helps to properly seat the bearings.
- Tool Selection: Always use sharp, appropriate tools for the material being machined to reduce stress on the spindle and improve cut quality.
Warranty and Support
This product typically comes with a 3-month warranty. For technical support or warranty claims, please contact your seller or distributor with your purchase details.
For further information or assistance, please refer to the official product page or contact customer service.
