- The MK28 series developed by our company are multi-axis linkage vertical CNC grinding machines. With specific configurations, they can achieve single-setup grinding of various complex surfaces including internal/external diameters, end faces, tapered surfaces, arc surfaces, and multi-step bores.
- The machine features a layout where the crossbeam moves horizontally, while the headstock is fixed onto the crossbeam and performs longitudinal reciprocating motion.
- The machine utilizes imported high-precision ball screws and imported high-precision roller linear guideways. Vibration damping devices are available as optional accessories.
- The rotary table enables stepless speed regulation and employs a self-feedback closed hydrostatic structure.
- The longitudinal reciprocating grinding head mechanism achieves gravity balance via balancing cylinders, and incorporates a safety feature to prevent the grinding head from falling after a sudden power failure.
- The machine comes standard with a T-slotted faceplate. Magnetic chucks and various types of fixtures are available as optional accessories.
- Major machined surfaces of the machine are ground using high-precision guideway grinding machines. Major castings undergo aging process treatment, effectively eliminating machining stresses and ensuring the machine’s precision and stability.
- Various dressers are available for selection depending on the workpiece: single-point diamond dressers, electric spindle diamond roll dressers, arc wheel dressers, etc.
- The machine boasts a clean and elegant appearance with a floor-mounted full enclosure. It features clear viewing windows and is equipped with step-type handrail stairs, significantly enhancing user convenience.
| Model | MK28160 | MK28125 | MK28100 | MK2880 | MK2860 |
| Maximum Grinding Bore Diameter | 1600mm | 1250mm | 1000mm | 800mm | 600mm |
| Maximum Grinding Depth | 500mm | 600/1400mm | 500/1100mm | 600mm | 450mm |
| Worktable Diameter | 1800mm | 1400mm | 1200mm | 900mm | 700mm |
| Maximum Diameter of Workpiece | 2000mm | 1600mm | 1300mm | 900mm | 700mm |
| Stroke of Cross Slide (X-axis) | 1700mm | 1550mm | 1300mm | 1100mm | 1000mm |
| Up and Down Stroke of Headstock (Z-axis) | 650mm | 650/1550mm | 550/1250mm | 650mm | 500mm |
| Rotation Speed of Work Spindle (Stepless Speed Regulation) | 20 – 60rpm | 20 – 60rpm | 20 – 80rpm | 20 – 100rpm | 20 – 100rpm |
| Maximum Speed of Z-axis | 10m/min | 10m/min | 10m/min | 10m/min | 10m/min |
| Resolution of X/Z-axis | 0.001mm | 0.001mm | 0.001mm | 0.001mm | 0.001mm |
| Maximum Load Capacity of Worktable | 10000KG | 4000KG | 3000KG | 1500KG | 1000KG |
| Total Power of Machine Tool | 40KW | 30KW | 28KW | 20KW | 20KW |
| Weight of Machine Tool | 35000KG | 30000KG | 25000KG | 15000KG | 10000KG |
| Roundness of Inner and Outer Circles | 0.003mm | 0.003mm | 0.003mm | 0.003mm | 0.002mm |
| Cylindricity of Inner and Outer Circles | 0.005mm/500mm | 0.005mm/500mm | 0.005mm/500mm | 0.005mm/500mm | 0.005mm/500mm |
