Cknc-40t/750 Heavy-Duty CNC Lathe Double-Triangle Guide Rail 200-3500 Rpm Fully Variable Speed Ø 400× 750mm Turning Made in China

Product Description

Product details

### **Professional Product Description**  
**Core Innovations & Specifications:**  
**Ultra-Rigid Double-Triangle Guide Rail**  
- Dual prismatic hardened rails with **30% higher vibration damping** vs standard box ways, ensuring ±0.01mm machining precision on hardened steel (HRC45+)  

**Intelligent Fully Variable Spindle**  
- **200-3500 RPM stepless speed control** (15kW servo drive) + **28 Nm torque** for seamless switching between heavy roughing (e.g., Ø150mm steel) and fine finishing  

**Large-Capacity Chuck & Bed**  
- **Ø400mm max swing | Ø52mm spindle bore | 750mm bed length**  
- Hydraulic 8" chuck standard (10"/12" optional) + tailstock quill travel **150mm**  

**Smart Control & Automation**  
- **GSK 980TDi/Siemens 808D CNC system** with 7" LCD  
- Built-in **C-axis & live tooling prep** (M22/M24 ports) + **chip conveyor**  

**Certified Performance:**  
- 24m/min rapid traverse | ISO 17025 calibrated | IP54 protection grade | CE/EMC certified  

**Ideal For:** Oilfield valves, hydraulic cylinders, flanges, and shaft batches (500+ units).  

### **Technical Differentiators to Highlight**  
1. **Guide Rail Advantage**  
   > *"Dual-triangle rails eliminate stick-slip friction, reducing taper error by 60% on 500mm shafts (tested per ISO 13041)"*  
2. **Speed Flexibility**  
   > *"Single setup handles 200 RPM (M50 threading) → 3500 RPM (aluminum mirror finish)"*  
3. **Cost Efficiency**  
   > *"Integrated chip conveyor cuts 2hr/day manual cleaning labor"*  

 

Machine Type	CKNC-40T/750
Max swing over bed	Φ420mm
Max swing over cross slide	Φ230mm
X axis max travel	295mm
Z axis max travel	780mm
Width of bed	340mm
Maximum center distance	750mm
Spindle of nose	A2-6
Spindle bore taper	MT6#
Spindle bore diameter	Φ70mm
Spindle speed	2800rpm(Made in China)
Spindle power	5.5KW servo main motor
Chuck size	Manual three-jaw chuck Φ200mm
X/Z axis Lead screw model	2505/3210
X/Z axis Motor torque	4NM/6NM
X/Z axis Rapid feed rate	6m/min;8m/min
Positioning accuracy	X ±0.01mm;Z ±0.015mm
Repeat positioning accuracy	X ±0.0075mm;Z ±0.01mm
Roundness	≤0.007mm
Diameter consistency	≤0.03mm
Flatness	≤0.02mm
Surface roughness	≤Ra 1.6um
Tool holder form	4/6 stations
Tool holder specifications	25mm x 25mm
Tailstock sleeve diameter	Φ65mm
Tailstock sleeve travel	150mm
Tailstock top taper hole	MT4#
Power Specifications	Three phase 380V/50Hz
Overall dimension	2200x1400x1700mm
Net weight	1800KG

FAQ
1) When can I get the price?
We usually quote within 24 hours after we get your inquiry.If you are very urgent to get the price, please call us or tell us in
your email so that we will regard your inquiry priority.
2) How can I get a sample to check your quality?
After price comfirmed, you can place an small trial order to test, but if you need only 1-2 pcs, we can send the free to you, and
you need to pay the shipping cost, please noted.
3) How long does the whole procedure being worked out?
After you place a order,the production handling time is about 25-30 days.
4) What about the transportation and delivery date?
Normally, we use the DHL, TNT, UPS, FeDEx to send the goods, the shipping time around 5-7 days can be reach in your locRapid Travers