CNC Lathe CKT 320x750 – precision and versatility in metal machining
The CNC Lathe CKT 320x750 is an advanced numerically controlled lathe designed for precision machining of metal workpieces in medium and large production plants. Equipped with Siemens Sinumerik 808D control and a hydraulic design, it provides high efficiency and reliability.
Main advantages of the CNC lathe CKT 320x750
The CKT 320x750 CNC metal lathe offers an excellent combination of precision, flexibility and durability, meeting the expectations of professional workshops and industrial plants. As an advanced industrial lathe, it enables complex cutting operations such as turning, threading, grooving and drilling, while maintaining the highest workpiece quality. Its key benefits include:
- Machining precision: Maximum turning diameter over the bed 320 mm and over the carriage 90 mm (option* 135 mm), with a spindle bore 51 mm and maximum bar diameter through the spindle 44 mm, ensures accuracy in a variety of tasks.
- Flexible spindle: Speed range 100-2500 rpm with a MK5 taper enables machining of a wide range of materials, from steel to light alloys.
- Advanced control: The Siemens Sinumerik 808D system, supported by Siemens servo drives, optimises programming and increases production efficiency.
- Rigid construction: Net weight 1040 kg (gross 1300 kg) and dimensions 2370x1420x2000 mm ensure stability during machining of workpieces up to 750 mm in length.
- Tooling efficiency: 4-position turret head (option* 6 or 8) with 16x16 mm tools speeds up tool changes, reducing production cycle time.
- Hydraulic components: A hydraulic 3-jaw lathe chuck and hydraulic tailstock ensure fast and precise workpiece handling.
- Durability and reliability: The automatic lubrication system for the transmission and guideways minimises wear, extending machine service life.
- Optimal cooling: The cooling system protects tools and workpieces, ensuring high surface quality and continuous operation.
- Versatile applications: Dedicated to precision turning in the mechanical, automotive and toolmaking industries.
- Economical operation: A motor with power of 5.1 kW (S1) / 3.7 kW combines high efficiency with low energy consumption.
- Customisation options: A wide range of options, such as Fanuc Oi-TF control, tool probe or CAD/CAM software, allows the machine to be adapted to specific needs.
Construction and technology of the CNC lathe CKT 320x750
The CKT 320x750 industrial CNC lathe has been designed for reliability and precision in demanding production environments. Key construction elements include:
- Solid machine bed: Rigid construction with a net weight of 1040 kg minimises vibration, ensuring stability during machining.
- High-performance spindle: A 51 mm bore with a maximum bar diameter of 44 mm, MK5 taper and speed of 100-2500 rpm enables machining of a wide range of workpieces.
- Turret head: 4-position (option* 6 or 8) with 16x16 mm tools provides fast tool changes and operational flexibility.
- Hydraulic tailstock: With MT3 taper and maximum travel of 100 mm, it supports precise workpiece support.
- Hydraulic lathe chuck: The 3-jaw chuck provides quick and secure workpiece clamping.
- Siemens servo drives: Guarantee smooth motion and high positioning accuracy.
- Automatic lubrication system: Central lubrication of the transmission and guideways reduces component wear.
- Cooling system: Maintains optimum temperature, improving machining quality and tool life.
- 24V halogen lighting: Provides excellent visibility of the working area, increasing safety and precision.
Precision and working efficiency
The CKT 320x750 numerically controlled lathe offers high precision thanks to Siemens Sinumerik 808D control and Siemens servo drives. The system optimises tool paths, ensuring accuracy when machining workpieces up to 320 mm in diameter and 750 mm in length. Fast tool changes and advanced turning cycles reduce production time, increasing efficiency.
Applications of the CKT 320x750 CNC metal lathe
CNC metal lathes such as the CKT 320x750 are indispensable in industries requiring precision machining, including:
- Mechanical industry: Production of shafts, bushes, flanges and precision parts.
- Automotive industry: Machining of engine, transmission and suspension components.
- Toolmaking industry: Production of threads, grooves and parts with complex geometries.
- Series and prototype production: Ideal for medium-batch production and prototyping in R&D plants.
The machine is an excellent choice for plants looking for a versatile and reliable CNC lathe.
Standard equipment
- SIEMENS SINUMERIK 808 Advanced control
- Siemens servo drives
- Hydraulic 3-jaw lathe chuck
- 4-position turret head option* 6 or 8
- Set of soft jaws
- Hydraulic tailstock with MT3 taper
- Cooling system
- Automatic lubrication system for the transmission and guideways
- 24V halogen lighting
- User manual
- CE certification
Optional equipment*
- Siemens Sinumerik 828D or Fanuc Oi-TF control
- Travelling steady rest
- Fixed steady rest
- Tool probe
- Additional soft or hard jaws
- Collet chucks
- Machined parts catcher
- Bar feeder
- Cabin fume separator
- Used oil separator from coolant
- Tool holders
- CAD/CAM software
Technical parameters
| Technical parameters |
| Turning diameter over bed |
320 mm |
| Turning diameter over carriage |
90 mm (option* 135 mm) |
| Distance between centres |
750 mm |
| Spindle speed |
100-2500 rpm |
| Spindle bore |
51 mm |
| Spindle taper |
MK5 |
| Number of tools |
4 (option* 6, 8) |
| Tool size |
16x16 mm |
| Maximum bar diameter through spindle |
44 mm |
| Tailstock taper |
MT3 |
| Maximum tailstock travel |
100 mm |
| Motor power |
5.1 kW (S1) / 3.7 kW |
| Dimensions |
2370x1420x-2000 mm |
| Net/gross weight |
1040/1300 kg |
*The price quoted is for the machine itself, excluding optional/additional equipment, installation, transport and training— please contact our consultant for more details.
CNC Control Systems – Siemens and Fanuc
CNC Lathe CKT 320x750 supports advanced control systems such as Siemens Sinumerik 808D, Siemens Sinumerik 828D and Fanuc Oi-TF, delivering precision, stability, and ease of use.
SIEMENS SINUMERIK 808 Advanced
- Intuitive interface: Simple operation, ideal for small and medium workshops.
- Reliability: Durable construction for industrial environments.
- Cost-effective: Perfect for basic turning and milling applications.
Siemens Sinumerik 828D
- High computing power: Enables dynamic machining and advanced cycles.
- CAD/CAM integration: Simplifies collaboration with design software.
- Advanced features: Toolpath optimisation and expandability.
Fanuc Oi-TF
- Stability: Proven reliability for long-term and serial production.
- Advanced turning cycles: Supports threading, grooving, and other precision operations.
- User-friendly interface: Simplifies and accelerates programming.
User manuals
SIEMENS SINUMERIK 828/840
Download manual
SIEMENS SINUMERIK 808
Download manual
Trust CORMAK’s Experience
With over 20 years of experience in supplying industrial machinery, CORMAK offers reliable CNC metal lathes and comprehensive technical support. All machines meet European safety standards, and professional warranty and post-warranty service ensure uninterrupted production.
- 16 years of experience in Siemens CNC service.
- 15,000 m² warehouse with around 12,000 machines in stock.
- Professional warranty and post-warranty service.
- European-certified machines guaranteeing operator safety.
Ask for details or schedule a machine demonstration!
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