DOUBLE-COLUMN VMC FOR HIGH SPEED MACHINING OF LARGE WORKPIECES

Mazak's (Florence, KY) versatile FJV-35/60 II is a double-column, vertical machining center designed for the high-speed, high-precision production of large workpieces. Suitable for a wide range of industries, including aerospace, construction, die and mold and heavy machine, the versatile FJV-35/60 II accommodates up to 5,500 lb on a 68.5 in x 29.53 in work table.

Mazak equipped the FJV-35/60 II with a powerful 50 taper, 40 hp, 10,000 rpm integrated spindle that generates up to 433 ft-lb of torque for heavy duty cutting of large cast iron, steel and aluminum workpieces. The FJV-35/60 II is also available with an optional 40 taper, 12,000 rpm high-speed spindle.

FJV-35/60 II's machining productivity is greatly improved from the previous model. In the manufacture of an aluminum (A5052) aircraft beam, the cutting time is significantly reduced by 40 percent. Similarly, the cutting time in the manufacture of a cast iron (FC300) sprocket is reduced by 20 percent. ATC tool chip-to-chip time is also reduced from 7.5 s to 5.0 s.
The machining center is available with a 5-face machining option, which utilizes a spindle automatically indexable by 90 deg, a special angle tool capable of automatic tool change (ATC) and an angle tool holder that can be indexed in four positions.

FJV-35/60 II utilizes offers high feedrates of 1574 ipm in the X- and Y-axes and 1181 ipm in the Z-axis. The machining center's direct drive ball screw system boosts high accuracy roundness to 5 µm with a feedrate of 22 ipm over the previous machine. The FJV-35/60 II also features a larger envelope thanks to an extended Z-axis stroke of 25.98 in, enabling the machining of workpieces up to 25.20 in high, as well self-cuts of fixture plate surfaces. The MX Hybrid Roller Guide System is integrated into the FJV-35/60 to deliver levels of durability and reliability that result in long-term accuracy. The MX Hybrid Roller Guide System increases vibration dampening to extend tool life, handles higher load capacities, accelerates and decelerates quicker to shorten cycle times, consumes less oil for "Greener" operations, and lasts longer with less required maintenance.

FJV-35/60 II features Mazak's sixth-generation CNC system, MATRIX NEXUS, for advanced conversational programming and EIA input as well. It offers a 12-in LCD color display and the familiar QWERTY keyboard. A pointing device, acting like a mouse, and USB port for downloading programs are also at the operator's fingertips. The environmentally friendly machine also uses energy-saving functions, including an LED work light, grease lubrication and an Inverter control for each conveyor that reduces electric power consumption by 15 percent.

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