PRODUCT
CK6140X750 CNC Lathe
The CK6140X750 CNC Lathe is a high-rigidity flat bed turning machine that pairs a large 400 mm swing with a compact 750 mm centre distance, so it takes large-diameter, short and medium parts that a small lathe cannot swing. It turns 220 mm over the tool post on 360 mm wide hardened guideways, with X and Z strokes of 250 mm and 900 mm and rapid traverse of 5 m/min in X and 8 m/min in Z.
CK6140X750 CNC Lathe
The CK6140X750 CNC Lathe is a high-rigidity flat bed turning machine built for precision shaft, sleeve, flange and disc parts in small-to-medium batch production. It swings 400 mm over the bed and 220 mm over the tool post, and with 750 mm between centers it holds a generous range of short and medium workpieces in one clamping. The carriage travels 250 mm in X and 900 mm in Z with rapid traverse of 5 m/min and 8 m/min, so idle time between cuts stays short. The machine completes external turning, internal machining, facing, grooving and threading in a single setup, which removes both handling time and datum error from the part.
Key Features
- Max. swing over bed Φ400 mm and max. turning diameter on tool post Φ220 mm
- Max. workpiece length between centers 750 mm
- Guideway width 360 mm for a rigid, chatter-free cut
- X axis stroke 250 mm and Z axis stroke 900 mm
- Rapid traverse speed of carriage X 5 m/min and Z 8 m/min
- Repeatability X 0.012 mm and Z 0.013 mm
- Packing dimensions 2350 × 1400 × 1800 mm
- High-rigidity one-piece flat bed casting for stability and vibration resistance
- Precision spindle, precision ball screws and hardened guideways
- Electric turret for fast tool changes; hydraulic chuck, automatic chip conveyor and automatic bar feeder available as options
Rigid Flat Bed Structure
The CK6140X750 is built on a high-rigidity, one-piece flat bed casting with 360 mm wide guideways that keep the machine stiff under interrupted and continuous cuts alike. That rigidity is what allows the lathe to hold its accuracy over a full shift rather than only on a warm-up test piece, and it is also what keeps chatter out of disc and flange work where the diameter is large relative to the length. The ways are hardened and ground, so the sliding surfaces stay accurate after years of production instead of developing the soft spots that show up as taper in the workpiece. A rigid bed plus a wide guideway also means deeper cuts at the same spindle load, which shortens the production cycle on medium-sized parts.
Precision Spindle and High-Precision Guideways
The machine pairs a high-performance spindle with precision ball screws and hardened guideways on both feed axes. The result is high positioning accuracy, low-friction motion and a repeatable cut, held to a repeatability of 0.012 mm in X and 0.013 mm in Z. In production that shows up as a tighter dimensional spread on shafts, sleeves, flanges and threaded parts, and as a lower scrap rate across a shift. Because the CK6140X750 performs external turning, internal machining, facing, grooving and threading without re-clamping, every operation removed from the route is also a datum error removed from the workpiece. The rigid structure also absorbs the vibration that comes with interrupted cuts on castings and forged blanks.
CNC System, Turret and Configuration Options
The CK6140X750 is delivered with an electric turret for fast, repeatable tool changes, which keeps non-productive time low on parts that need several tools. A hydraulic chuck can be specified for higher clamping force and shorter cycle times, and an automatic bar feeder can be fitted so the lathe keeps producing without an operator loading each workpiece. An automatic chip conveyor is available to clear chips continuously on long runs. The machine can therefore start as a stand-alone lathe for repair and general machining work and later be grown into a lightly automated cell without being replaced. Control system and tooling configuration are selected to match the workpiece and the production task.
Applications and Materials
The CK6140X750 is widely used in automotive components, machinery manufacturing, hardware processing, construction machinery, hydraulic equipment, instrumentation and mould accessories. With a 400 mm swing over bed and 750 mm between centers it handles shafts, sleeves, bushings, flanges, discs, gear blanks, threaded parts and connectors that a smaller lathe cannot swing in one clamping. It machines carbon steel, stainless steel, aluminium alloys and copper alloys across general turning, threading and related flat bed CNC processes. The actual application depends on the workpiece material, size and machining requirements.
Technical Specifications
| Model | CK6140X750 |
| Max. swing over bed | Φ400 mm |
| Max. turning diameter on tool post | Φ220 mm |
| Max. workpiece length between centers | 750 mm |
| Guideway width | 360 mm |
| X axis stroke | 250 mm |
| Z axis stroke | 900 mm |
| Rapid traverse speed of carriage | X: 5 / Z: 8 m/min |
| Repeatability | X: 0.012 mm / Z: 0.013 mm |
| Packing dimensions (L × W × H) | 2350 × 1400 × 1800 mm |
Why Choose CK6140X750
The CK6140X750 gives a compact footprint without giving up swing. It combines a 400 mm swing over bed, a 220 mm turning diameter on the tool post and 750 mm between centers with X and Z strokes of 250 mm and 900 mm and rapid traverse of 5/8 m/min, then adds hydraulic chuck, automatic chip conveyor and bar feeder options so it can keep running unattended. The 2350 × 1400 × 1800 mm footprint keeps it inside a normal workshop bay. Overseas after-sales service and CE certified machines are provided.
Request a Quote
Contact us for the CK6140X750 CNC lathe price, delivery time, configuration options and technical support. We provide overseas after-sales service and CE certified machines.
