The Fives Giddings & Lewis PT 1800 is a heavy-duty horizontal machining center designed for high-precision, large-scale metalworking applications. It features a large work table measuring 70.9" x 141.7" (optional 70.9" x 165.4") and supports maximum workpiece weights up to 88,200 lbs, facilitating machining of substantial parts. The machine uses a horizontal spindle with an ANSI #50 taper (optional SK 50) capable of up to 4,000 RPM (optional 3,500 RPM) powered by a robust 60 HP motor rated for 30-minute intervals. Its automatic tool changer (ATC) initially holds 60 tools, expandable to 120, enabling extended unattended operation. The PT 1800 operates on four axes (X, Y, Z, and B rotary), with an optional fifth axis, delivering X-axis travel up to 141.7" (optional 165.4"), Y-axis travel 82.7" (optional 141.7"), Z-axis travel 31.5" (optional 49.1"), and full 360° rotation on the B-axis. All axes can achieve rapid traverse and feed rates of 984 inches per minute, offering fast cycle times. Built on a rigid one-piece column base and bed with preloaded roller guideways, the PT 1800 ensures superior stiffness, precision, low friction, and longevity under heavy cutting loads. Its modular design supports customization, including headstock and tooling options, to optimize performance for diverse industrial machining tasks. This machine is ideal for heavy, high-accuracy machining in industries such as aerospace, energy, and heavy equipment manufacturing.