**High Quality BT40 Direct Drive CNC Machine Spindle**
1. **Spindle Specification:** BT-30, BT-40, BT-50
2. **Spindle Nose Running Accuracy (250/300mm):** 8 µm
3. **Temperature Growth:** 15°C
4. **Spindle Speed:** 4,500–24,000 R.P.M.
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### **Specification:**
| **Item** | **Details** |
|-------------------------|---------------------|
| **Model** | BT40-140 |
| **Spindle Speed** | 10,000 RPM |
| **Motor Power** | 7.5KW |
| **Balance Level** | G1 |
| **Spindle Pull Force** | 600 kgf |
| **Spindle Bearing Diameter** | 140 mm |
| **Running Accuracy** | 0.008 mm |
| **Normal Temperature Rise** | +18°C |
| **Cooling Method** | Oil Cooling |
| **Installation Type** | Vertical |
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### **About Us**
Dongguan Mihong Mechanical Hardware Co., Ltd. is a professional manufacturer and supplier of high-precision CNC rotary tables, CNC tool holders, CNC machine spindles, and CNC machining centers. With advanced machinery, skilled professionals, and sophisticated technology, we have earned the trust and recognition of the Chinese machine tool industry.
Our main products include:
1. **CNC Rotary Tables:** 4th axis NC rotary table, cam rotary table, motor-driven rotary table, 5th axis rotary table, etc.
2. **CNC Machine Spindles:** SP30 belt drive spindle, SP40 belt drive spindle, SP50 belt drive spindle; ST40 direct drive spindle, ST50 direct drive spindle; ST30 tapping & drilling spindle; CNC lathe machine spindles (A2-4, A2-5, A2-6).
3. **CNC Machining Centers:** VMC550, VMC650, VMC850, VMC1160, etc.
4. **Tool Holders:** BT, NT, MT, ER tool holders, collet chucks, high-speed tool holders, and more.
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### **Company View**
### **Customer Cases**
### **Exhibition**
### **CNC Rotary Table**
### **Parts Making**
### **Agent of Tsudakoma NC Rotary Table in South China**
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### **Contact Information**
For more information about our company, please visit our official website: [www.sctmachine.com](http://www.sctmachine.com) or [www.dgscttool.com](http://www.dgscttool.com).
**ATTN: Deanna**
**Address:** No. 8 Xingsan Road, Chenwu Wusha, Changan Town, Dongguan City, Guangdong Province, China
**Tel:** +86-769-85071566
**Web:** www.sctmachine.com / www.dgscttool.com
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### **Our Service**
1. OEM Manufacturing
2. Sample Orders
3. CNC Machine Center Solutions
4. Short Lead Time
We are committed to providing high-quality products and excellent customer service. Whether you need a custom solution or a standard product, we are here to support your needs.
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