The MK7520x60 CNC double-column surface grinding machine with moving beam is designed for large workpiece precision grinding. It ensures high accuracy, stable performance, and excellent efficiency, making it suitable for aerospace, automotive, shipbuilding, mold, and heavy industrial applications.
Equipped with a Siemens 828D CNC system and a Heidelberg fully enclosed ring grating ruler, the machine delivers ultra-precise positioning and long-term stability.
With a maximum table load capacity of 18,000 kg and a working range up to 2000×6000×1500 mm, it can handle oversized and heavy-duty components with ease.
Specification
| Main Specifications | Unit | MK7520x60 |
| Max. size of workpiece to be ground (W×L×H) | mm | 2000×6000×1500 |
| Worktable surface (L×W) | mm | 2000×6000 |
| Longitudinal stroke of worktable | mm | 6100 |
| Distance between gantry columns | mm | 2880 |
| Maximum allowable through workpiece width | mm | 2600 |
| Horizontal grinding wheel center to table distance | mm | 200~1750 |
| Longitudinal movement speed (Hydraulic stepless) | m/min | 5~25 |
| Max. table load weight (Including electromagnetic chuck) | kg | 18000 |
| Motor power of grinding head | kW | 15 |
| Grinding wheel size (O.D×W×I.D) | mm | φ500×75×φ203 |
| Vertical movement distance of the cross beam | mm | 1200 |
| Cross beam moving speed (up/down) | mm/min | 300 |
| Vertical movement distance of grinding head | mm | 300 |
| Vertical fast moving speed | mm/min | 400 |
| Min. vertical feed | mm | 0.005 |
| Horizontal movement distance | mm | 2100 |
| Horizontal moving speed | mm/min | 250~2400 |
| Intermittent feed | mm/time | 1–35 (optional) |
| Equivalent thickness of machined workpiece | mm | 0.015/1000 |
| Surface roughness of machined workpiece | μm | <Ra0.63 |
| CNC axis positioning & repeatability (Lateral & Vertical) | μm | 0.03/2000 (bi-dir.) | 0.02/2000 (bi-dir.) |
| Verticality of cross member vs. worktable/lateral movement | μm | 0.03/500 |
| Total capacity of electrical equipment | kVA | 75 |
| Overall dimensions (L×W×H) | mm | 17000×5500×5500 |
| Net weight | kg | 68000 |
Main Features
1.Gantry double-column structure with moving beam for enhanced rigidity.
2.Siemens 828D CNC system for intelligent control.
3.Min. vertical feed: 0.005 mm for micro-level finishing.
4.Worktable capacity: 18,000 kg with electromagnetic chuck.
5.Large workpiece range: up to 2000×6000×1500 mm.
6.High precision: parallelism 0.015/1000 mm, Ra0.63 μm surface finish.
7.Compact layout reducing floor space and maintenance costs.