Key Features of This Machining Center
This machine tool is a two-axis (X-axis, Z-axis) CNC internal grinding machine, primarily used for grinding the internal cylindrical holes, stepped holes, internal and external ends of workpieces. The grinding cycles are all automatically completed (with features such as automatic feeding, retracting, rough and fine grinding; automatic truing of the abrasive wheel, and automatic compensation).
Machine tools utilize a workpiece box for fixation, with the worktable moving left and right, and the grinding wheel carriage feeding forward and backward. Both the worktable and grinding wheel carriage are driven by servo motors to move on ball screw linear guides.
The rotating speed of both the workpiece spindle and the grinding wheel spindle is controlled by a variable frequency drive, achieving stepless speed adjustment.
Machine tools are equipped with front-mounted moving control boxes and independent electrical cabinets. Protective enclosures are available in two different styles: semi-enclosed or fully enclosed, for customer selection.
Machine Tool Model MK250 Grinding Hole Diameter Range (mm) 100-500 Grinding Depth (mm) 500 Workpiece Swing Diameter (mm) Inside: 510, Outside: 720 Feeding Plate Travel (mm) 200 Worktable Travel (mm) 730 Headstock Swivel Angle (°) 30° Workpiece Speed (r/min) 30-500 (Variable Speed) Wheel Speed (r/min) 2000-10000 (Variable Speed) Workpiece Motor Power (kw) 4 Wheel Motor Power (kw) 5.5 X-axis Servo Motor Power (kw) 2 Z-axis Servo Motor Power (kw) 4 Hydraulic Motor Power (kw) 0.55 Cooling Motor Power (kw) 0.09 × 2 Rated Power (kw) 17.8 Worktable Movement Speed (m/min) 6 Grinding Speed (m/min) 0-4 Wheel Feeding Speed (m/min) 5 X-axis Fine Resolution (mm) 0.001 Z-axis Fine Resolution (mm) 0.001 Workpiece Load Capacity (kg) 300 Cooling Pump Flow Rate (L/min) 30 Hydraulic System Pressure (Mpa) 0.4 Oil Pump Flow Rate (L/min) 25 Machine Weight (kg) 5600 Machine Dimensions (mm) 4000×1900×2000 Machining Precision Inside Hole Roundness (μm) 3 Inside Hole Cylindricity (μm) 5 Inside Hole Surface Roughness (μm) Ra0.63 Face Roughness (μm) Ra0.8
