Our line of Bridge and Gantry Mills combine high rigidity, high speed, and long term, high accuracy. Whether you need multi-purpose or large-capacity, our Bridge Mills and Gantry CNC's can provide you with the size and customization you need for success.
Bridge mills, also known as portal mills, are vertical milling machines with an adjustable crossrail (creating a "bridge" or "portal") that allows the spindle axis to travel from end to end of large workpieces. A bridge mill is made up of a base/bed casting and a single-piece bridge structure bolted to the bed. The Y-axis runs along the bridge structure, and the X-axis runs along the length of the bed.
Because machining on a vertical machining center is limited by bed size—particularly the Y-axis—the extra travel provided by the bridge mill allows for the production of much larger, longer parts than on a vertical machining center. The larger work envelope of a bridge mill opens up more opportunities for manufacturers in the die/mold, aerospace, automotive, and other industries.
The larger dimensions of this type of vertical CNC machine allow for more work to be done in a single pass, increasing productivity and efficiency.
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