1991 BRIDGEPORT VMC1000 VERTICAL MACHINING CENTERS

Technical Description

The 1991 Bridgeport VMC1000 is a 3-axis vertical machining center produced by Bridgeport Machines, Inc., representing an early production example of the company's 1000mm-class VMC platform. The machine features a 43-inch by 20-inch worktable with a 20 or 22-tool automatic tool changer and a BT 40 or ISO 40 spindle taper. The spindle motor delivers 15 HP with a speed range up to 6,000 RPM standard, with available high-speed options. X-axis travel is 40 inches, Y-axis travel is 20 inches, and Z-axis travel is 20 inches. The CNC control on this 1991 machine is a Heidenhain TNC 410, providing conversational Klartext and ISO G-code programming with high-accuracy contouring capability. Machine construction features a precision-ground cast-iron base and column with recirculating-ball linear guideways and preloaded ballscrews on all three axes. Standard equipment includes flood coolant and automatic lubrication. Overall machine dimensions are approximately 118 inches long by 87 inches wide by 106 inches tall, with a machine weight of approximately 11,000 lbs. The 1991 VMC1000 represents the early-production generation of this platform, predating the spindle speed and power increases that would come in later production years. It is a well-constructed machine that has proven durable over decades of service, and is supported by broad parts and service availability in the used machinery market. Buyers should verify control system documentation and servo drive condition when evaluating machines of this vintage.