Bangalore-based yantra engineers manufactures vvertical ram turret milling machinesm series are manufactured by bangalore-based yantra engineers. These milling machines that are provided with 2/4-pole motor for 16 spindle speeds. Following are some of the technical features of these milling machines which include: these machinesare provided with hand operated lubrication pump have coolant system and base splashguard. The models m2 s, m3 s and m2 v of this series have nst 40 spindle taper. Constructional features include: the table-working surface of these models is 230 mm x 1,067 mm with manual table travel of 762 mm; . The 3-steps of auto quill feeds are 0.04/0.08/0.14 mm/rev with quill travel of 127 mm; . The overall dimensions of the machines in this series are 2045 mm x 1620 mm x 1468 mm and the net weight is 950 kgs; . The range of spindle motor power is 23 hp with step head and variable spindle speeds. The standard accessories which are provided with these machines include: of these machines are draw bar, electric control box, tools and toolbox, and rubber chip cover [front and rear]. Some general specifications of these models include: besides the other specifications of these models are as follows:* table travel [power feed]: 700 mm * cross travel: 305 mm * knee travel [vertical]: 406 mm * ram travel: 390 mm * spindle taper: r8/nst 30 * table to spindle nose: 0406 mm * head swivel: 45 deg left45 deg right * head tilt: 45 deg up45 deg down* turret swivel: 360 deg