PIN SHIN HRA-780 MANUAL LATHES

Technical Description

The PIN SHIN HRA-780 is a heavy-duty variable speed manual lathe engineered for precision machining applications requiring robust construction and operational flexibility. Featuring a 30.71-inch swing diameter, this machine accommodates substantial workpieces while maintaining rigid control throughout cutting operations. The 4.13-inch spindle bore, supported by precision taper roller bearings in a 3-pointed configuration, enables secure workholding and consistent concentricity for demanding machining tasks. With a 21.26-inch swing over the cross slide, the lathe provides versatile positioning capabilities for complex geometries and various turning operations. The HRA-780 incorporates heavy-duty construction with a one-piece cast bed featuring meehanite casting and high-frequency heat treatment, ensuring dimensional stability and vibration dampening during extended production runs. Standard specifications include an 18-inch bed width, variable spindle speed capabilities for optimized cutting conditions across diverse materials, and a 4-way rapid traverse device for enhanced productivity. The machine comes equipped with essential accessories including a coolant pump, work light, steady rest, dead centers, and a comprehensive tool kit, facilitating immediate operational deployment. Optional attachments such as 3-jaw and 4-jaw chucks, taper turning attachments, and additional steady rests expand the lathe's versatility for specialized applications. This model exemplifies Pin Shin's commitment to manufacturing precision equipment suitable for job shops, tool rooms, and production facilities requiring reliable, manual control over heavy-duty turning operations.