Mazak Quick Turn 250MSY turning centreClick image to enlarge

Mazak's Quick Turn-250MSY turning centre has been revamped with "productivity-enhancing" features such as new direct drive turret design, a higher torque main spindle, more powerful milling spindle, and the recently introduced Mazatrol SmoothG CNC control.

 The new machine, with multi-tasking functionality, has two turning spindles, a rotary tool milling spindle and Y-axis capabilities for single setup Done In One precision part processing operations. The machine’s new 12-position, direct-drive turret eliminates the use of belts for improved part surface finishes and reduced maintenance. It accepts both VDI and bolt-on tooling.

The turret’s new direct drive rotary tool spindle is now 10-hp, 6,000 rpm standard. The faster rotary spindle provides 52 ft-lbs of torque, essentially double of what was possible before with the previous version. And with an optional tooling package, 10,000 rpm is available.

The machine’s headstock features a 10 in. main chuck mounted on a 35-hp, 4,000-rpm integrated spindle motor for heavy-duty metal removal. To effectively tackle today’s tough part materials, Mazak bumped up the torque output of the spindle by almost 30 ft-lbs. The main turning spindle also serves as a C-axis that is programmable in 0.0001-degree increments to accurately position parts for square facing and slotting cuts and precisely drilled holes. The C axis spindle is a full-function CNC controlled axis for milling. A second turning 15-hp, 6,000-rpm spindle with a 6" chuck allows the machine to machine small diameter workpieces with speed and accuracy, claims Mazak.

Machine models without second turning spindles feature Mazak’s new NC servo-drilling tailstocks as standard. The fully programmable tailstock drives the W axis on its own AC servomotor and ball screw. Through the part program, the tailstock will retract to a known position and its centre makes contact with the part with consistent holding pressure. Thrust settings are completely adjustable – high thrust or low thrust – without having to re-touch the part.

Mazak’s Mazatrol SmoothC and SmoothG CNCs offer EIA/ISO programming as well as conversational programming that makes it easy to generate programs for complex drilling, milling or tapping operations. The controls also feature advanced hardware and software functions that help ensure high productivity and performance accuracy in challenging part production operations.

As a higher level control, the Mazatrol SmoothG incorporates a variety of advanced programming functions for ease of use and to ensure high speed, high accuracy machining performance. These functions include High Gain Feed Forward Control, Fast Rotary Axis Speeds, Variable Acceleration Control and Intelligent Pocket Milling.

A variety of automation strategies can be integrated with the machine, from an automatic bar feeder to gantry robots, for improved spindle utilization and a boost in productivity.

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