Flat Bed CNC Lathe Machine

The CK6140's core advantage is its one-piece integral flat bed made of high-strength cast iron, processed by double artificial aging treatment to eliminate internal stress, effectively reducing vibration during heavy-duty cutting and avoiding precision loss. The flat bed design ensures uniform force distribution, enhances the machine's stability, and facilitates chip removal, reducing the impact of chips on processing precision. The X/Y/Z axis guideway adopt box way structure lined with wear-resistant material, treated with ultra-audio frequency quenching (hardness over 52HRC) and precision grinding, enhancing wear resistance and maintaining long-term positioning accuracy. With a net weight of 1700-2200kg, it provides strong support for heavy-duty cutting.

The CK6140 supports a variety of turning operations, including cylindrical turning, conical turning, thread turning (metric, inch, module, diameter pitch), grooving, facing, boring, and drilling, as well as processing of complex curved surfaces with linear and circular interpolation[3][6]. The maximum swing over bed is 400mm, and the maximum turning length is 750-2000mm (optional), suitable for processing medium-sized work-pieces such as long shafts and large discs. It is equipped with a 4-station electric tool post (optional 6/8-station), enabling quick tool change (tool change time within 2 seconds) and reducing non-processing time. The 5.5-7.5kW high-power main motor provides sufficient power for heavy-duty cutting.

Equipped with a high-precision spindle supported by double-row roller bearings and angular contact ball bearings, it resists radial and axial loads, ensuring spindle rotation accuracy of 0.002mm. The spindle bore diameter is 52mm (optional 80mm), supporting larger work-piece diameters, and the spindle speed ranges from 60-1800rpm with stepless frequency conversion, adapting to different metal materials and cutting requirements.

It is equipped with a high-performance CNC system (standard GSK, optional Siemens, FANUC, Mitsubishi), featuring a user-friendly LCD display and intuitive operation interface, supporting G-code programming, manual data input (MDI), and program storage (up to 100 sets). Optional the fully enclosed protective housing with a safety switch on the front sliding door ensures operator safety and prevents cutting fluid and chips from damaging internal components. The automatic central lubrication system performs fixed-point quantitative lubrication of guideway and ball screws, reducing wear and maintenance costs. Compared with large CNC turning centers, it has a 40% lower initial investment and operating cost, making it an ideal choice for medium-sized enterprises.