SUMMIT 40" RISED 50"X240 MANUAL LATHE

The Summit 40" Rised 50"x240 is a heavy-duty manual engine lathe engineered for large-scale turning, facing, and boring operations. With a substantial 50-inch swing and 66-inch swing-in-gap capacity, this machine accommodates oversized workpieces while maintaining operational flexibility. The 20-foot center distance enables extended shaft and cylindrical work, supported by a 6.125-inch spindle bore and 32-inch 4-jaw chuck for secure workholding. Operating across 6.3 to 800 RPM with 30 HP output, the lathe delivers variable throughput suitable for both roughing and finishing passes. Feed precision ranges from 0.0012 to 0.0183 inches per revolution for general turning and 0.0025 to 0.0200 inches per revolution for specialized work, enabling threading capabilities from 4 to 56 TPI and metric threads 1 to 7. The #6 Morse taper tailstock with 5.5-inch quill diameter and 7-inch travel accommodates drilling and reaming operations. Dual aprons with carriages, integrated taper attachments, and rapid traverse functionality on both units provide operational versatility. Steady and follow rests—24-inch roller type and 40-inch bronze pad versions—preserve accuracy and surface finish on long or thin workpieces. The 44,000-pound cast-iron bed ensures exceptional stability and vibration dampening, while the integrated coolant system optimizes tool life and part finish. At 350 inches length x 84 inches depth x 72 inches height, this machine represents industrial-grade capacity for production, prototype development, and precision component manufacturing.