Engineered for Reliable Metal Turning in Industrial Workshops
The CN6140B / CN6240B / CN6150B / CN6250B conventional lathe machine is designed to deliver consistent performance in demanding metal turning applications. Built with a rigid cast iron structure and hardened guideways (HRC52+), this metal lathe machine ensures long-term stability, reduced vibration, and reliable machining accuracy even under heavy-duty cutting conditions.
Unlike entry-level machines, this heavy duty lathe machine is optimized for both precision finishing and high-load rough machining. With a wide spindle speed range (9–1600 rpm) and a powerful 7.5kW motor, it can handle a variety of materials including carbon steel, alloy steel, aluminum, and copper.
For manufacturers and workshops looking for a durable and versatile solution, this conventional lathe machine provides a balance between cost-efficiency and machining capability.

Key Features
Hardened & Precision Ground Guideways
The guideways are hardened to over HRC52 and finished by precision grinding, significantly improving wear resistance and ensuring stable accuracy over long-term use.
Wide Spindle Speed Range
With 24 speed steps from 9 to 1600 rpm, the machine adapts to both heavy cutting and fine finishing processes.
Large Spindle Bore for Versatile Machining
The φ82mm spindle bore allows processing of larger diameter bars and workpieces, improving productivity in shaft machining applications.
Multi-Standard Thread Cutting Capability
Supports metric, inch, module, and diametral threads, making this metal lathe machine suitable for global markets and diverse industrial standards.
Heavy-Duty Cast Iron Construction
The machine bed and main components are precision-machined for maximum rigidity, reducing deformation and ensuring consistent cutting performance.
Flexible Bed Length Options
Available in 1000mm, 1500mm, 2000mm, and 3000mm working lengths to accommodate different workpiece sizes.
Benefits for Industrial Buyers
- Stable Machining Accuracy
Reduced vibration and high rigidity ensure consistent dimensional control. - Lower Maintenance Cost
Hardened guideways extend service life and reduce wear-related downtime. - Higher Productivity
Wide speed range and multiple feed options improve machining efficiency. - Global Compatibility
Multi-thread standards eliminate the need for additional machines. - Flexible Production Capability
Suitable for both small batch production and repair applications.
Technical Specifications
| Parameter | CN6140B / CN6150B | CN6240B / CN6250B |
|---|---|---|
| Swing over bed | 420mm | 500mm |
| Spindle center height | 210mm | 210mm |
| Max machining length | 1000–3000mm | 1000–3000mm |
| Spindle bore | 82mm | 82mm |
| Spindle speed | 9–1600 rpm (24 steps) | 9–1600 rpm (24 steps) |
| Max machining diameter on carriage | 220mm | 300mm |
| Max swing over carriage | — | 630mm / 710mm |
| Feed range (X/Z) | 0.028–6.43 mm/r | 0.028–6.43 mm/r |
| Tailstock taper | MT5 | MT5 |
| Tailstock travel | 150mm | 150mm |
| Main motor power | 7.5kW | 7.5kW |
| Thread types | Metric / Inch / Module / DP | Metric / Inch / Module / DP |
Applications
This conventional lathe machine is widely used in:
- Mechanical parts manufacturing
- Automotive repair workshops
- Metal fabrication shops
- Maintenance and tool rooms
- Technical training and education
Typical workpieces include shafts, bushings, threaded parts, and cylindrical components.
Optional Configurations
To meet different project requirements, the machine can be customized with:
- Digital Readout (DRO system)
- Different chuck sizes (3-jaw / 4-jaw)
- Steady rest and follow rest
- Customized voltage and motor configuration
- Extended bed length options
FAQ
Q1: What is the difference between a conventional lathe machine and a CNC lathe?
A conventional lathe machine is manually operated, offering flexibility and lower cost, while CNC lathes are automated and better suited for high-volume production.
Q2: Is this metal lathe machine suitable for heavy-duty industrial use?
Yes, the machine features hardened guideways and a rigid cast iron structure, making it a reliable heavy duty lathe machine for industrial applications.
Q3: What materials can this lathe process?
This metal lathe machine can handle a wide range of materials, including steel, aluminum, brass, and alloy metals.
Q4: Can the machine be customized for different markets?
Yes, voltage, accessories, and configurations can be customized based on regional and operational requirements.
Why This Conventional Lathe Machine Stands Out
Choosing the right metal lathe machine is not just about specifications—it’s about long-term reliability and adaptability. This heavy duty lathe machine is designed to meet real workshop needs: stable performance, flexible machining capabilities, and reduced operational costs.
For buyers looking to balance durability, performance, and investment value, this conventional lathe machine offers a practical and proven solution.







