The MAMMOTH PROKING PB-50 is a heavy-duty horizontal machining center featuring a large main spindle optimized for turning operations. It accommodates a maximum turning diameter of 37.38 inches and a substantial turning length of up to 800 inches, supported by a main spindle chuck diameter of 38 inches and a maximum swing of 50.13 inches, providing robust capabilities for handling large workpieces. The machine is equipped with a single main spindle, delivering 30 HP at 630 RPM as standard, with an optional upgrade to 50 HP at 500 RPM for enhanced power. Additionally, a secondary spindle option matches these performance specifications, facilitating flexible machining. The spindle system supports one turning tool and one rotary tool simultaneously, allowing for efficient and precise cutting with a single tool path at a time. The machine operates on two axes, with a standard Z-axis travel of 60 inches, extendable to 80 inches in the optional configuration, ensuring an extensive vertical working envelope. The primary tool carrier uses a slide mechanism, optimized for heavy-duty turning tasks. This machining center is engineered for high rigidity and power, suited for large-scale machining of heavy parts, molds, and fixtures, providing precision and versatility in horizontal turning and milling applications within a robust machine footprint.