Bridgeport Type Mill
Bridgeport type mills are manual knee-type vertical milling machines that are widely used in machine shops. They are named after the Bridgeport brand, which invented the modern manual milling machine in the 1930s. Bridgeport type mills have a movable ram that allows horizontal movement of the spindle, a knee that allows vertical movement of the worktable, and a quill that allows fine adjustment of the spindle depth. Bridgeport type mills can perform various operations, such as milling, drilling, boring, tapping and reaming. They can also cut angles and slots with tilting or swiveling the head or using special attachments. Bridgeport type mills are known for their versatility, accuracy and durability. They have a solid cast iron frame that reduces vibration and a variable speed drive that allows optimal spindle speed for different materials and tools.