supply of machine tool testing and maitainance lab equipments - vertical milling machine: nall geared one feed auto with electrical main motor 1hp, 1440 rpm, r / f switch nspecification: na ) table: n working surface 200mm x 890mm n swivel ±45° n t.slot nos. / size 3 / 12mm n distance between t.slot 50mm nb ) spindle: n no. of spindle speeds 6 n range of spindle speeds 50 to 750 n spindle taper iso-40 n arbour diameter 25.4mm nc ) feeds: n longitudinal 460mm n cross 115mm n vertical 280mm n no. of auto feeds 2 n feed range 0.1 to 0.3 mm / rev nnote: n base of the machine should be defect free high quality close grained cast iron and slide ways should be ground finished to ensure high accuracy n the slide ways should be closely scrapped, hardened and matched to achieve maximum accuracy and surface finish. n all the shafts and screw should be made out of alloy steel. n geometrical and practical tests should be done as per indian standards of latest edition on the spot at the time of installation. necessary inspection and material test certificate should be submitted. n machine operational manual should be produced. n