The 2012 Mazak Quick Turn Nexus 450-II is a heavy-duty CNC turning center built for large-diameter, high-torque work. Its 50 hp, 2,000 rpm two-step geared spindle delivers up to 1,760 ft-lb of torque through a 4.5 in bore and an 18 in three-jaw hydraulic chuck, while box-way construction keeps the machine rigid under heavy cuts. A 12-station turret, a tailstock with 40 in between centers, automatic tool length measurement, a chip conveyor, and the Mazatrol Matrix Nexus control round out a production-ready platform for shafts, flanges, and other large turned parts. Compared to the original Quick Turn Nexus 450, the 450-II steps up to the Mazatrol Matrix Nexus CNC with faster processing and smoother surface control, and refines the spindle drive and way system for improved rigidity and thermal stability. For a shop turning large, heavy parts, that generational step means tighter accuracy and easier programming on the same big-bore, box-way foundation. MakeMazak ModelQTN-450-II Year2012 Product #17228 Price Please login to see price. Make an Offer Get a Quote Share Ask a Question Add to Comparison Added About This Machine Put big-bore, high-torque turning on your floor with a Mazak Quick Turn Nexus 450-II that swings an 18 in chuck over a 50 hp geared spindle with 40 in between centers. With its box-way rigidity, 12-station turret, and Matrix Nexus control, this is a large-part production lathe ready to hog through shafts, flanges, and heavy stock in a single clamp. **All descriptions and specifications are preliminary and must be confirmed by buyer prior to purchase.** Live Tooling / Milling Specifications Z-Travel: 40.00" Distance Between Centers: 40" Max Cutting / Turning Diameter: 23.00" Spindle Bar Capacity: 4.00" Chuck Size: 18.0" Chuck Type: Hydraulic Chuck Description: 18 in 3-Jaw Hydraulic Chuck Spindle Bore: 4.50" Spindle Speed: 2,000 RPM Spindle Motor: 50 HP Second Spindle Turret Tool Positions: 12 Control Control Make/Model: Mazatrol Matrix Nexus Tailstock / Steadyrest Tailstock: Equipped With Options Machine Options: Automatic Tool Length Measurement System Additional Machine Specs: 2-Step Geared Spindle Box Way Construction 1,760 ft-lb Spindle Torque Chip Removal: Chip Conveyor