Product Description
The CK6140 Flat Bed CNC Lathe is engineered for precision and power, delivering robust performance for medium to heavy-duty turning operations. Featuring a maximum swing over bed of φ400mm and a machining length of up to 2000mm, this machine is ideal for complex, long-part production in automotive, aerospace, and machinery manufacturing industries.
Equipped with a high-capacity spindle offering optional bore sizes of φ52mm or φ70mm, the lathe supports a wide range of workpiece diameters. The spindle features a stepless frequency-converted drive system that enables speed control across 60 to 1600 RPM for superior adaptability across material types and cutting conditions.
Its precision feed system delivers X-axis and Z-axis positioning accuracy to within 0.001mm, ensuring consistent and high-quality machining. A rapid traverse rate of 6 m/min (X-axis) and 10 m/min (Z-axis) improves cycle times, while the 4-position (or optional 6-position) tool turret with 25×25mm tool capacity enhances operational efficiency.
The CK6140’s tailstock features a φ65mm sleeve with an MT4 taper and 130mm travel, making it suitable for deep-hole drilling and shaft work. Backed by a rigorous quality control process—including 48+ hours of continuous testing, laser interferometry, and circular interpolation verification—each lathe is built for long-term performance and easy maintenance with full production records.
Technical Details
| Item | Specification |
|---|---|
| Max. Swing over Bed | φ400 mm |
| Max. Swing over Cross Slide | φ220 mm |
| Max. Machining Length | 750 / 1000 / 1500 / 2000 mm |
| Spindle Bore | φ52 mm (Optional φ70 mm) |
| Spindle Nose | ISO-C6 (C8) |
| Spindle Taper | MT6 |
| Spindle Speed Range | 60-1600 RPM (2-speed range, stepless) |
| X-axis Travel | 200 mm |
| Z-axis Travel | 600 / 850 / 1350 / 1850 mm |
| Rapid Traverse (X/Z) | 6 / 10 m/min |
| Minimum Input Unit (X/Z) | 0.001 mm |
| Tool Post | 4-position (optional 6-position) |
| Tool Size | 25 × 25 mm |
| Tool Change Time | 2 sec |
| Tailstock Quill Diameter | φ65 mm |
| Tailstock Quill Taper | MT4 |
| Tailstock Quill Travel | 130 mm |
| Repeat Positioning Accuracy (X/Z) | 0.001 mm |
| Main Motor Power | 5.5 / 7.5 kW |
| Machine Dimensions | 2200×1500×1600 mm 2450×1500×1600 mm 2950×1500×1600 mm 3450×1500×1600 mm |
| Weight | 1800 kg / 1900 kg / 2100 kg / 2300 kg (depending on model) |


Abigail Dawson –
We’ve seen a marked improvement in efficiency after installing their equipment.