The 2014 Megabore PB5021040 Hollow Spindle Engine Lathe is purpose-built for large-diameter and deep-hole turning operations. With a massive 21-inch spindle bore, 50-inch swing over bed, and an extended 160-inch distance between centers, this machine provides exceptional rigidity and versatility. Its 40-horsepower motor with inverter drive and semi-automatic threading cycles ensures smooth torque delivery and consistent accuracy across the full speed range of 6–250 RPM. Equipped with dual 36-inch 4-jaw steel chucks, hardened ways, and a 2-axis digital readout, the PB5021040 maintains absolute precision even during demanding long-part machining. Compared to conventional heavy engine lathes, the PB5021040 integrates advanced features like a built-in hydraulic copy system, powered compound slide, and full-length chip conveyor, enabling high-output, large-diameter turning with minimal setup downtime. Its superior stability and spindle capacity make it a premium solution for oilfield, aerospace, and industrial applications requiring maximum throughput and part rigidity. MakeMegabore ModelPB5021040 Year2014 Product #16076 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question About This Machine The 2014 Megabore PB5021040 transforms heavy turning into precision work—powering massive components with a 21-inch spindle bore and 40-horsepower muscle built for the toughest industrial challenges! **All descriptions and specifications are preliminary and must be confirmed by buyer prior to purchase.** Live Tooling / Milling Specifications Distance Between Centers: 160" Max Swing Over Bed: 50.00" Max Swing Over Cross Slide: 32" Spindle Spindle Speed: 250 RPM Spindle Motor: 40 HP Spindle Bore: 21.00" Second Spindle Tool Changer Turret Control Control Make/Model: Digital Readout Tailstock / Steadyrest Tailstock Stroke of Body: 7.87" Steadyrest Type: Manual Steadyrest Capacity: 28" Options Product Description: Width of Bed 28" Compound Slide Travel: 12 inch Threading Range (Inch): 0.5–28 TPI Hydraulic Copy System: Built-in full-length Chip Conveyor: Full-length Splash Guard: Full-length Speed Display: Digital spindle speed display Module thread MOD 0.25-14 (60) Diametral DP 2-112 (60) Pitch of leadscrew mm (TPI) 12(2) Hardened Ways Voltage: 440V Electrical: 440V