The CK6140 CNC lathe is a high-precision, high-rigidity machine tool designed for efficient machining of complex rotational parts. Below is a detailed breakdown of its parameters, configurations, and performance characteristics based on industry standards and manufacturer specifications:
- Bed Swing: Φ400 mm
- Carriage Swing: Φ210–245 mm
- Maximum Workpiece Length: 750/1000/1500/2000 mm (multiple options available)
- Spindle Bore: Φ52 mm (standard), with optional upgrades to Φ60 mm or Φ80 mm for handling larger-diameter shafts
- Spindle Taper: Morse No.6 (MT6)
- Speed Range:
- Standard: 25–1600 RPM (12-speed gearbox + variable frequency drive)
- High-Speed Version: 150–2000 RPM (2-step gearbox + servo motor)
- Power:
- Main Motor: 5.5–11 kW (servo-driven for precise torque control)
- Spindle Bearings: High-precision P4-class cylindrical roller bearings (e.g., 瓦房店 brand) for reduced heat and noise
- Travel:
- X-axis: 250 mm (radial movement)
- Z-axis: 1000–1500 mm (longitudinal movement)
- Feed System:
- Rapid Traverse: X: 5–6 m/min; Z: 8–10 m/min (ball screw-driven for smooth motion)
- Cutting Feed: 0.04–2.16 mm/rev (64 feed rates available)
- Precision:
- Positioning Accuracy: X: ±0.012 mm; Z: ±0.013 mm (per GB/T 25659.1-2010 standard)
- Repeatability: X: ±0.005 mm; Z: ±0.008 mm (semi-closed loop control with encoder feedback)
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