CK6140 CNC Lathe
The CK6140 CNC lathe features a one-piece cast iron bed and hardened guideways, delivering high rigidity and excellent vibration damping for batch finish turning of small and medium-sized shaft, disc and sleeve parts. It offers a choice of 1000 mm / 1500 mm machining lengths and an optional hydraulic turret, covering both general-purpose machining and automated production line requirements.
- CategoryTurning Center
- 1000mm between centersCK6140-1000
- 1500mm between centersCK6140-1500
- with hydraulic turretCK6140-T
Price and lead time are quoted per configuration and quantity. Send us your part or capacity requirement and we will come back with a quotation.
CK6140 CNC Lathe Key Specifications
The CK6140 is a CNC lathe designed for small and medium-sized rotational parts, with machine bed rigidity, spindle accuracy and repeat positioning stability as its core design objectives. The table below lists the main technical specifications of the standard model for selection and process evaluation.
| Parameter | Specification |
|---|---|
| Max. swing over bed | φ400 mm |
| Max. machining length | 1000 / 1500 mm (optional) |
| Spindle speed range | 150–2000 r/min (stepless) |
| Spindle motor power | 7.5 kW |
| Repeat positioning accuracy | X/Z axes ±0.005 mm |
Specification Details
Swing Diameter and Machining Length
The maximum swing over bed of φ400 mm determines the maximum outer diameter range of the workpiece that can be chucked, making the machine suitable for disc-type, flange and sleeve-type parts. The machining length is available in 1000 mm or 1500 mm; for long shaft parts, the 1500 mm model is recommended together with a steady rest to suppress tool deflection and vibration during slender shaft machining.
Spindle Speed and Power
The spindle uses stepless speed regulation with a range of 150–2000 r/min; combined with a 7.5 kW spindle motor, it covers the roughing and finishing requirements of steel, cast iron and non-ferrous metal parts. Torque is ample in the low-speed range, suiting rough turning with large cutting allowances; the high-speed range serves light-allowance finishing and non-ferrous parts, balancing surface quality and efficiency.
Repeat Positioning Accuracy
Both the X and Z axes achieve a repeat positioning accuracy of ±0.005 mm; together with hardened guideways and preloaded ball screws, this ensures dimensional consistency in batch machining and suits long, continuous machining of parts to the same specification.
Applicable Part Types
Based on the specifications above, the CK6140 is suited to the following typical parts:
- Shaft parts: drive shafts, stepped shafts, slender shafts (with steady rest)
- Disc parts: flange discs, end covers, brake discs
- Sleeve parts: shaft sleeves, bushings, bearing housings
- Non-ferrous parts: finish turning of small aluminium and copper rotational parts
When selecting a model, match it to the part's maximum outer diameter, machining length and batch cycle time, and specify whether the hydraulic turret option is required for continuous machining with automatic multi-tool changes.
Need a Different Configuration?
Tell us the parts you machine and the batch size — we will recommend a machine or process that fits.