ELK GROVE VILLAGE, IL—A new BIG PLUS simultaneous dual contact tool holder system, specially engineered for turning operations for the Mori Seiki NT Series multitasking machines, is now offered exclusively by BIG Kaiser Precision Tooling, Inc.

BIG PLUS CAT 40 and CAT 50 taper spindle systems are standard equipment on Mori Seiki NT Series machines. The BIG PLUS system offers simultaneous dual contact between the machine spindle face and the tool holder flange face and the machine spindle taper and tool holder taper shank. The simultaneous contact provided by BIG PLUS substantially increases the tool rigidity, especially important for turning operations that multitasking machines are capable of performing.

In addition, the BIG PLUS for Mori Seiki NT Series features stationary tool holders that have drive keys according to Mori Seiki tolerances and specifications for the highest precision turning application possible.

The BIG PLUS taper and flange contact spindle system for Mori Seiki NT Series offers the first modular tooling system for mill-turning applications, in either a 45-degree tilt style or a 90-degree right angle style. It also includes a wide variety of rotary tool holders and a complete MTC® tooling system—a full range of tool holders for milling, drilling, tapping, reaming, and boring.

Simultaneous spindle and flange contact greatly enhances rigidity and repeatability, which yields many benefits in higher metal removal rates, higher accuracy, improved surface finish, and extended tool life. It will also minimize vibration to prevent fretting corrosion; eliminate axial movement during high speed operation; and resist cutter deflection, improving accuracy and finish.

BIG PLUS dual contact assures the highest precision location of the tool holder in the spindle when using Automatic Tool Change (ATC) for loading tools, positioning the tool holder within 1 micron (0.00004") for repeatability.

BIG Kaiser Precision Tooling is a leader in high precision tooling systems and solutions. With brands including Kaiser, BIG Daishowa, Speroni, Unilock, Sphinx, and more, BIG Kaiser’s line is focused on extreme accuracy and repeatability. BIG Kaiser’s mission is to support North American manufacturers with products that are designed and manufactured to a superior standard.

For more information about NT Series tooling, BIG PLUS tooling or other BIG Kaiser products, contact BIG Kaiser, Elk Grove Village, IL 847/228-7660, e-mail bigkaiser@bigkaiser.com, or visit www.bigkaiser.com for a representative in your area.