ELK GROVE VILLAGE, IL—A series of ultra lightweight automatic balanced precision boring heads for diameters ranging from 3.937" to 8.000" has been introduced by BIG Kaiser Precision Tooling Inc.

The EWB-AL aluminum tooling system, requiring only two different heads to cover the entire diameter range, is designed for cutting speeds up to 6,600 SFM. The system offers simultaneous clamping of adjusting cartridge and counterweight to ensure precision accuracy and safe operation at high speeds.

EWB-AL heads are made of high tensile aluminum with hard coating, resulting in a tool weight 1/3 that of steel, and are equipped with a highly accurate self-balancing mechanism. Combined with reductions and extensions made from the same material, tool weight for long and large diameter tool combinations is reduced by more than 50%, eliminating weight problems during automatic tool changing (ATC).

“EWB-AL boring heads are ideal for the machining of precision bores with high spindle speeds and/or long bore depths,” explained Matt Tegelman, Product Manager, Kaiser Tooling Systems. “These lightweight heads feature a highly accurate cutting edge adjustment for forward bore operations ranging from 3.937" - 8.000" and back bore operations from 4.409" - 8.000", combined clamping that offers excellent positional accuracy, and a hard coated surface that extends the life of the tool by reducing wear and tear.”

EWB heads are designed for precision boring on modern CNC machining centers, allowing users to perform forward and back boring operations without the need for additional components. They feature micrometric adjustment precision, with dials graduated in increments of .0005 inches. The dial’s design allows for precision adjustments to be made at the machine.

A high precision Vernier scale permits more accurate setting accuracy to 0001"/diameter. Precision balancing occurs automatically with adjustment of the diameter.

“Use of balanced heads provides the greatest assurance of optimum performance and produces a notable improvement in surface finish,” Tegelman said. “Modern cutting materials such as poly-crystalline diamond (PCD) and cubic boron nitride (CBN) perform best with high speed operation. Balanceable tooling gives the optimum surface footage required for peak production and high finish quality. They are highly recommended for high speed applications and will enhance performance in moderate speed applications as well,” he added.

BIG Kaiser Precision Tooling, based in the Chicago suburb of Elk Grove Village, is the exclusive sales and marketing arm in North America for Heinz Kaiser, AG, Rümlang, Switzerland, a worldwide developer and manufacturer of precision boring tools of unmatched quality for thousands of applications in metalworking. BIG Kaiser is owned by BIG Daishowa Seiki, one of the world’s leading producers of precision tool holders and measuring accessories.

BIG Kaiser is a market leader in the development, manufacture and distribution of high precision boring tools, precision tool holders including BIG PLUS systems, modular tooling systems, carbide and indexable drills and endmills, precision tool measurement and presetting systems, workholding systems and machine accessories.

For more information about BIG Kaiser’s EWB-AL tooling system or other BIG Kaiser products, contact BIG Kaiser at 641 Fargo Avenue, Elk Grove Village, IL 60007, telephone 847/228-7660, fax 847/228-0881, e-mail BIGKaiser@bigkaiser.com, visit our Website www.bigkaiser.com or contact the BIG Kaiser tool distributor in your area.