Carving stone, granite, and marble demands constant, high torque and durability. Our Water Cooled Spindle for Stone is built to withstand the harsh, abrasive environment of stone machining. The water cooled cnc spindle for stone uses a robust sealing system and efficient cooling to prevent dust ingress and overheating, ensuring reliability on the toughest jobs.
■ Product Description
■ Technical Parameters
| Model | STZ125-5.5Z-ER25 |
| Power | 5.5kW |
| Voltage | 380V |
| Current | 11.0A |
| Poles | 2 |
| Torque | 2.19Nm |
| Speed | 24000rpm |
| Frequency | 400Hz |
| Cooling | Water |
| Tool interface | ER25 |
■ Product Advantages
Powerful Large-Power Cutting Capability (5.5kW)
Provides strong sustained torque and power reserve, easily driving medium-to-large diameter tools for high-speed, large-volume cutting. This significantly boosts the machining efficiency and material removal rate for medium-to-high hardness materials.
Excellent Cutting Rigidity
The tapered tool holder interface makes close contact with the spindle face, providing extremely high radial and axial rigidity. This effectively suppresses tool vibration and axial displacement during high-load cutting, which is crucial for guaranteeing machining accuracy.
Extremely Low Operating Noise and Temperature Control
The water circulation cooling system completely eliminates fan noise and efficiently controls the spindle temperature, ensuring extremely high thermal stability during long periods of continuous, high-load operation, thus extending bearing life.
High Reliability and Durability
The tapered interface design is more robust and durable than collet-style spindles, and the water cooling system effectively isolates internal contamination from the external environment, enhancing the spindle's overall reliability and service life.
■ Application Scenarios
Automated Multi-Process Machining Centers (ATC)
Applicable to factories for panel furniture, custom cabinets, etc., performing high-efficiency, continuous, multi-tool automatic change heavy-duty operations like cutting, drilling, and slotting.
Heavy Precision Woodworking and 3D Shaping
Performing deep routing and complex curve finishing on materials like thick solid wood, MDF, and artificial wood, requiring high precision after tool change.
Medium Mold Manufacturing and Prototyping
Performing high-precision, large-volume, multi-tool automatic change milling and finishing of resin, artificial wood, and medium-intensity soft metals (like aluminum alloys and copper).
■ Adapted Equipment
● High-Performance Automatic Tool Change (ATC) Machining Centers
Mid-to-high-end CNC machines in the woodworking, furniture, or advertising industries equipped with tool magazines, requiring high-efficiency, multi-process automated production.
● CNC Nesting/Drilling Centers (Heavy-Duty)
Used for continuous, high-intensity, multi-tool automated production in the panel furniture industry.
● High-Rigidity CNC Milling Machines/Engraving Machines
Equipment used for prototyping small molds or precision parts, requiring the spindle to have high rigidity, high precision, and automatic tool change capability.
● Automated Integration Workstations/Robotic End Effectors
Used as the power unit on automated production lines for continuous, heavy-load, multi-functional processing of products.
■ FAQ
Q: Why choose a water-cooled spindle?A: They have good heat dissipation, low noise, and high machining accuracy.
Q: What should be paid attention to in the daily maintenance of a water-cooled spindle?A: Use clean water (purified water), change the water regularly, and remember to use antifreeze in winter.
Q: How to choose the right power for a water-cooled spindle?A: 3.2kW and below: Suitable for engraving wood, plastic, and other materials.
5.5kW and above: Suitable for processing hard materials like metal and stone.
Q: Why does the spindle get hot?A: If the water isn't circulating (for example, if the pump is broken or the pipe is blocked), the spindle will overheat.
Q: What type of water is best for cooling?A: It's best to use purified or distilled water.
Q: How big should the water tank be for the cooling system?A: The bigger the water tank, the better the heat dissipation. A 10-20 liter tank is generally sufficient for a small spindle.
