HERCULES AJAX SPM710X4000 MANUAL LATHE

Technical Description

The Hercules Ajax SPM710X4000 is a heavy-duty manual lathe designed for large, precise metalworking tasks. It features a **28-inch swing over the bed** and a **17.71-inch swing over the cross slide**, accommodating workpieces up to **157 inches long** with a gap allowing a max diameter of **37.9 inches**. The lathe can support workpieces weighing up to **7,700 lbs** fixed between centers or with steady rests. The main spindle incorporates a **Camlock 11 nose** with a **4.13-inch bore diameter** and variable spindle speeds from **8 to 900 RPM**, powered by a robust **18.5 kW motor**. Feed capabilities allow longitudinal feeds from **0.0011 to 0.16 inches per revolution** and cross feeds between **0.00027 and 0.0443 inches per revolution**, supporting a broad range of machining precision. Thread cutting is versatile, with capabilities across **metric threads (.5-80 mm), Whitworth threads (160-1 TPI), module threads (.5-40 Modul), and diametric pitch threads (160-2 DP)**. The cross slide offers a substantial **17-inch stroke**, while the tailstock’s quill (diameter 4.13 inches, MT6 taper) extends **8.66 inches**, enabling support of long or tapered workpieces. Standard workholding includes **24.5-inch 3-jaw and 4-jaw chucks**, along with multiple faceplates (two 22-inch and one 15-inch). Additional features include a **cross slide-mounted internal grinding attachment** and a **thread chasing dial** for enhanced threading accuracy and finishing. This lathe is engineered for heavy and complex machining operations demanding strength, versatility, and precision on large diameter and long workpieces.