The Megabore Denver is suitable for turning large diameters for heavy machine shops, aerospace etc. 1. Base (1) One piece casting work with reinforced inner structure, extra 3rd support to be suitable for processing of large work piece and enhanced heavy-duty cutting ability. (2) The gap part base special with reinforced structure, it is no influence on cutting stability to break the gap for necessary. 2. Spindle (1) Bore 152mm, 16-step speed change, turbine speed change mechanism with no easy speed jumping and three-point support for the box. (2) Fitted with adjustable, electromagnetic brake for easy braking adjustment according to different work piece materials and speed. (3) Gear and shaft are made of super alloy material with bearings to offer durable cutting and low production noise. (4) Sealed oil bath lubrication system with enforced oil supply by mechanical pump to achieve better lubrication effects. 3. Apron feeding device Swift transmission, positive and negative rotation movement and safety device with auto sealed oil bath lubrication & cross rapid feeding. 4. Saddle Anti-friction processed surface with regular oil injection, lubricated and friction endurable. 5. Electrical control 20HP Motor, 2 stage safety start-up device and overloading power cut system. 6. Castings FC-30 steel are used for main structures like base, spindle, saddle, which are annealed and have no deformation. 7. Processing Base, spindle, saddle, alot surface of traveling plate, tool base sliding table, tail shaft pipe are high frequency treated, precision ground for extended service life. Optional accessories, 1. Strong Tailstock device 2. Face plate with 4-jaw 70" 3. Coolant device 4. Spindle bore (230mm) 9" 5. Spindle nose:A2-15 6. Spindle nose:A2-20