High-end engineering plastic PEEK features high temperature resistance, wear resistance, self-lubrication, high strength and corrosion resistance. It is widely used in medical implants, aerospace structural parts, precision hydraulics, semiconductor equipment and new energy auto parts. PEEK has high hardness, generates heavy cutting heat during turning and tends to stick to cutting tools under high temperature. It puts strict requirements on machine rigidity, spindle stability and cooling system. Ordinary lathes often suffer workpiece deformation, surface wire drawing and dimensional tolerance deviation. Equipped with reasonable cutting technology, high-precision CNC lathes can steadily complete mass turning of various PEEK special-shaped shafts, flanges, sleeves and precision sealing parts.
Recently, a Southeast Asian precision medical device manufacturer contacted our Shanghai ANTISHICNC team. The client needs mass production of medical PEEK sealing sleeves with outer diameter 20–120mm, strict standards on surface finish and dimensional consistency. Based on client’s production capacity, workpiece size and precision requirements, our engineers recommend CK6140 flat bed CNC lathe as the optimal processing solution.
ANTISHICNC CK6140 flat bed CNC lathe adopts high-rigidity cast iron bed with stress relief aging treatment. The spindle is equipped with high-precision paired bearings and dynamic balance calibration to realize ultra-low vibration during operation. Matched with closed-loop servo system, it achieves micron-level positioning accuracy to restrain vibration in PEEK machining. Standard large-flow cooling system quickly removes cutting heat, effectively preventing PEEK melting, tool sticking and thermal deformation of workpieces, suitable for continuous mass precision plastic machining.
Technical Parameters of CK6140
| Item | Unit | CK6140/750 | CK6140/1000 | CK6140/1500 |
| Max swing over bed | mm | Φ400 | Φ400 | Φ400 |
| X guide span | mm | 180 | 180 | 180 |
| Z guide span | mm | 320 | 320 | 320 |
| Max swing over carriage | mm | Φ220 | Φ220 | Φ220 |
| Distance between centers | mm | 750 | 1000 | 1500 |
| Max diameter for disc workpieces | / | 400/370 (6/8 stations) | 400/370 (6/8 stations) | 400/370 (6/8 stations) |
| Max turning length | mm | 620/510 | 870/760 | 1370/1260 |
| Center height from bed | mm | 240 | 240 | 240 |
| Center height from ground | mm | 1050 | 1050 | 1050 |
| Spindle bore diameter | mm | Φ52/Φ80 | Φ52/Φ80 | Φ52/Φ80 |
| Max bar capacity | mm | Φ50/Φ78 | Φ50/Φ78 | Φ50/Φ78 |
| Optional hollow chuck drawbar bore | mm | Φ40/Φ68 | Φ40/Φ68 | Φ40/Φ68 |
| Spindle nose type | / | A2-6/A2-8 | A2-6/A2-8 | A2-6/A2-8 |
| Standard chuck size | mm | Φ200 (52 bore)/Φ250 (80 bore) | Φ200 (52 bore)/Φ250 (80 bore) | Φ200 (52 bore)/Φ250 (80 bore) |
| Spindle taper | Type | Metric 80, 1:20 | Metric 80, 1:20 | Metric 80, 1:20 |
| Max spindle speed | rpm | 2200(52bore)/1200(80bore) | 2200(52bore)/1200(80bore) | 2200(52bore)/1200(80bore) |
| Tailstock quill diameter | mm | Φ65 | Φ65 | Φ65 |
| Tailstock sleeve taper | Type | MT4# | MT4# | MT4# |
| Tailstock quill travel | mm | 120 | 120 | 120 |
| Tailstock configuration | / | Manual tailstock (hydraulic optional) | Manual tailstock (hydraulic optional) | Manual tailstock (hydraulic optional) |
| Electric turret stations | Pcs | 4 stations (6/8 optional) | 4 stations (6/8 optional) | 4 stations (6/8 optional) |
| Tool shank size | mm | □20×20 | □20×20 | □20×20 |
| X ball screw model | mm | FDC2005-P3 | FDC2005-P3 | FDC2005-P3 |
| Z ball screw model | mm | FDC3206-P3 | FDC3206-P3 | FDC4008-P3 |
| X/Z rapid traverse speed | m/min | 6/7 | 6/7 | 6/7 |
| X axis travel | mm | 260 | 260 | 260 |
| Z axis travel | mm | 750 | 1000 | 1500 |
| Minimum input increment | mm | 0.001 | 0.001 | 0.001 |
| Main motor power | KW | 5.5 (7.5 optional) | 5.5 (7.5 optional) | 5.5 (7.5 optional) |
| Total power consumption | KW | 9.5 (12) | 9.5 (12) | 9.5 (12) |
| Machine net weight | Kg | 2100 | 2400 | 2780 |
| Overall dimension(L×W×H) | mm | 2300×1450×1720 | 2650×1450×1720 | 3150×1450×1720 |
PEEK Finished Workpiece Display
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ANTISHICNC technical team matched special plastic turning tools and low-heat cutting parameters to solve the difficulties of client’s medical PEEK parts. The delivered CK6140 CNC lathe passed all sample inspection on dimension and surface roughness and has been put into stable mass production.
If you need precision turning of PEEK, nylon, POM and other engineering plastics, please contact Shanghai ANTISHICNC via contact@antsmachine.com. We supply flat bed CNC lathes, slant bed turn-mill centers and Swiss type lathes. We have abundant mature cases for hard-to-cut materials including engineering plastics, hard alloy and stainless steel. Our engineers will provide exclusive machine and process solutions for you.
Keywords: CNC Lathe, PEEK Processing Lathe, Special Lathe for Engineering Plastics