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Universal centring cylinderical grinding semiautomatic machines VSN-152UVI, BCA-1U52B NC3, VSH-152RVI, BCA-1R52B NC3

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The semiautomatic machine is intended for grinding of outer surfaces of various materials bodies-of-rotation by method of plunge-cut and traverse grinding of parts in centres and in chuck. Structural features: It is additionally possible the machining of inner surfaces of bodies-of-rotation in manual control on the semiautomatic machine model VSH-152 UVI-01. Also it is additionally possible the machining of face flat surfaces in man-ual control and of inner surfaces of bodies-of-rotation on the semiautomatic ma-chine model VSH-152RVI-01. The spindle of grinding wheel is made in hydrodynamic sliding bearings. The spindle of inner-grinding stock is made in high-accuracy antifriction bearings. The table is traveled by the hydraulic cylinder. The machine has a cast bed and base. 152UVI UVI-01 152RVI RVI-01 Diameter of workpiece to be installed in the cen-ters, mm    - maximal 250 250 250 250    - minimal 10 10 10 10 Maximal length of workpiece to be installed in the centers, mm 1000 1000 1000 1000 Diameter of workpiece to be installed in the chuck, mm    - maximal 200/250 200/250 200/250 22    - minimal 22 22 22 22 Maximal length of the blank to be installed    - in the chuck, mm 250 250 250 250    - in the chuck with the enclosed rest, mm 350 350 350 350 Diameter and height of grinding wheel for:    - external grinding, mm 500/80 500/80 400/50 400/50    - internal grinding, mm - 50/40 - 50/40    - face grinding, mm - - - 250/25 Diameter and length of inner surface to be ground, mm - 20-160/120 - 20-160/120 Maximal swivel angle, deg    Of upper table       - clockwise 6 6 6 6       - counterclockwise 9 9 9 9    Of wheelhead       - clockwise 5 5 90 90       - counterclockwise 5 5 180 180    Of workhead       - clockwise 90 90 90 90       - counterclockwise 90 90 90 90    When the operation with the sine fixture counter-clockwise 30 30 30 30 Maximal weight of blank to be installed, kg    when the operation in the centers       - unfastened quill 80 80 80 80       - fastened quill 160 160 160 160    when the external and internal grinding in a chuck 40 40 40 40    when the internal grinding in a chuck with the enclosed rest 60 60 60 60 Taper in quill of workhead Morse 5 Morse 5 Morse 5 Morse 5 Taper in quill of tailstock Morse 4 Morse 4 Morse 4 Morse 4    - external grinding 43 43 38 38    - face grinding - - - 24 Limits of workpiece rotational speeds (steplessly), rpm 50/500 50/500 50/500 50/500 Power of grinding wheel drive, kW 5,5 5,5 4 4 Power of inner-grinding wheel drive, kW - 1,1 - 1,1 Total power of installed electric motors, kW 10,79 11,89 9,28 10,38 Overall dimensions, mm: 2950x2295x2150 2950x2295x2150 2950x2295x2150 2950x2295x2150 Weight of the machine, kg 6000 6000 6000 6000