Product Name: Mk250 Hot Sale CNC Internal Hole Processing Machinery Model NO.: MK250 Condition: New Certification: CE, ISO 9001 Precision: Precision Cylindrical Grinder Type: Internal Grinding Machine Automatic Grade: Automatic Controlling Mode: CNC Abrasives: Grinding Wheel Processing Object: Large Size Internal Hole Type: Internal Grinding Machine Roundness of Inner Bore: 2um Cylindricaity of Inner Bore: 3um Surface Roughness of Inner Bore: Ra0.4um Weight of Machine Tool: 4800 Rated Power: 10-20kw Maximum Strok of Feed Mechanism: 500mm Machine Overall Dimension: 2400x1800X2500mm Trademark: CHANGYI Transport Package: Waterproof Film Wrapped, Wooden Case Package Specification: 2400x1800x2500mm Origin: Wuxi, China HS Code: 8460292 Product Description The largest CNC internal grinding machine in our workshopSiemens 828D system, THK ball screw, Rexroth guide line, NSK bearings.We promise the best quantity with competitive price!