2013 YAMA SEIKI BM850 VERTICAL MACHINING CENTERS

Technical Description

The 2013 Yama Seiki BM850 is a 3-axis box-way vertical machining center manufactured by Yama Seiki USA, the compact model in the BM heavy-duty series designed for precision milling of medium workpieces with the rigidity and vibration damping of box-way construction. The BM850 provides 33.5 inches of X-axis travel, 23.6 inches of Y-axis travel, and 23.6 inches of Z-axis travel, with a table measuring 41.3 by 23.6 inches. The 20 HP spindle reaches 8,000 RPM through a two-speed geared headstock, providing high torque at lower speeds for heavy cutting in steel and cast iron while maintaining adequate surface speed for finishing operations. Fanuc CNC control provides reliable G-code programming and a well-supported production interface. At approximately 14,500 pounds with overall dimensions of approximately 123 by 90 by 110 inches, the BM850 reflects the heavy cast iron structure characteristic of box-way machining centers. The BM850's compact travel range combined with box-way construction makes it suited to die/mold shops, tool rooms, and contract manufacturers producing medium-to-hard-material components where long-term accuracy retention and vibration damping are prioritized over high rapid traverse speeds. Yama Seiki's BM series offers a cost-competitive box-way VMC option in North America, combining the structural advantages of box-way slides with reliable Fanuc control technology in a well-supported platform.