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Placing the adjustment dial on BIG Kaiser's new 317 EWN precision finish boring heads on the backside of the boring head improves accuracy of tool corrections, allows easy reading from side or back.
Placing the adjustment dial on BIG Kaiser's new 317 EWN precision finish boring heads on the backside of the boring head improves accuracy of tool corrections, allows easy reading from side or back.
 
For Immediate Use
August 2000
 
CONTACT:
Andre Kepes
847-228-7660
or
KPT Engineering Dept.
847-228-7660
 
   
 
Stability, Broader Work Range, Accurate Dial Top Advantages
Of Kaiser's New 317/EWN Large Diameter Finish Boring Head
Elk Grove Village, IL - Redesign of the insert holder to extend the work range and the adjusting dial for ease of use and accuracy are two important improvements on BIG Kaiser's Series 317 large diameter finish boring heads offered in the new EWN system.
 
The redesigned insert holder in the 317/EWN head allows for a broader work range and versatility. It covers the full range of large bore diameters from 5.91 inches to 46.46 inches.
Redesign of the way the insert holder attaches to the boring head now allows it to be easily turned around and used for back boring, making standard an operation that often required special tooling. The new insert holder also puts cutting edges on the centerline, providing better chip control and evacuation.
The adjusting dial has been moved to the backside of the boring head to improve the accuracy of tool corrections. Tool adjustments can still be made from the side with a standard hex key. The new design allows easy reading of the dial from either the side or back.
Other new features include redesign of the locking system that clamps the tool carrier and adjusting dial, making the tool more stable and safer.
The compact, rugged configuration of the large diameter boring system is ideal for use on production machines, such as boring mills and machining centers, with spindle taper sizes of 40 and larger.
The precision finishing head is directly mounted on an extension from the 317 program. The boring head features a micrometric setting precision of .0005 inches on the diameter per dial gradation (inch head catalog No. 10.317.112) or ten microns (.01mm, metric catalog No. 10.317.102). The easy-to-read dial permits the user to split the gradations, providing extremely accurate and repeatable diameter corrections.
 
This modular system provides optimum rigidity while offering a cost-effective use of modular components. The new 317/EWN adapts to the standard 317 program, using existing slides, flanges, and extensions. For most applications, only the slide needs to be changed to adapt to a specific bore diameter. Each extension slide has an adjustment range over 2.75 inches in diameter and can be increased to over 4.75 inches by using the additional insert holders available for the EWN program.
 
A patented safety device prevents the boring head or counterweight from being thrown off the slide by centrifugal force, even when clamp screws have been hand tightened.
Kaiser's locking system prevents any diameter shift under locking action force, assuring the operation of repeatable diameter precision. All tool movement is strictly radial, making length corrections required on angular mounted tools unnecessary. A Kaiser EWN head can be precisely set to finish size after only one trial pass, resulting in a drastic reduction in expensive downtime and scrap.
Insert holders are designed for use with positive rake indexable inserts and use self-centering, center clamping insert screws, providing lower cutting forces and improved chip evacuation when compared to top clamping systems. Through spindle coolant capability is standard.
 
BIG Kaiser Precision Tooling Inc., based in the Chicago suburb of Elk Grove Village, is the U.S. subsidiary of Heinz Kaiser AG, Rümlang, Switzerland. HKAG is a worldwide developer and manufacturer of precision boring tools of unmatched quality for countless applications in metalworking.
 

BIG Kaiser provides a comprehensive line of tools, tool measurement & presetting systems, as well as quality tooling accessories. Tooling solutions from BIG Kaiser include twin cutter roughing heads, single cutter finishing heads, indexable insert drills, spade drills, Sphinx drills, Unilock workholding systems, tapping attachments, chamfering tools, face mills, modular tool holder components, and Speroni and Diaset precision tool presetting systems.

 
For further information on BIG Kaiser's new series 317 EWN large finish boring system, or any of BIG Kaiser's tooling solutions, contact BIG Kaiser Precision Tooling or your local BIG Kaiser distributor. Contact information for BIG Kaiser located at bottom of web page.
 
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641 Fargo Avenue - Elk Grove Village, IL 60007
Phone: 1-847-228-7660 * (Toll-Free) 1-888-TOOL-PRO (1-888-866-5776)
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