Tooling product review

Tooling system matches proper toolholder to application

The HSK-A125 tooling system from BIG Kaiser Precision Tooling Inc., Hoffman Estates, Ill., (www.bigkaiser.com) is for machine tools, such as Makino’s T2 and T4 models, that can cut large titanium and other difficult-to-machine workpieces on massive tables.

The A125 lineup is an expansion of the company’s HSK Form A program and is available on request. The lineup features many toolholder types, including HMC and Mega Double Power milling chucks up to 2 ” in diameter, Mega ER/Mega N/Mega E collet chucks, shrink-fit holders, facemill adapters, Kaiser KAB adapters and Mega Synchro tapping holders. Through-coolant capability is standard, and most holders have a sealing arrangement for directing coolant through the tool or around the tool periphery.

“Selecting the proper toolholder for the application is the key,” said Alan T. Miller, the company’s engineering manager, product manager-BIG. “Our HSK-A125 tooling system provides the variety that ensures you have the right toolholder for the job, and the rigidity and precision to get the job done right. HSK-A125 is quickly becoming very popular in the aerospace industry.”

Toolholder extension for difficult-to-access areas on workpieces

Schunk Inc., Morrisville, N.C., (www.schunk.com) offers the Tribos SVL toolholder extension to machine difficult-to-access areas on a workpiece. Runout accuracy is better than 0.003mm.

The extension can be combined with various toolholders, including the company’s Tendo hydraulic expansion holders, Celsio heat-shrink holders, Tribos holders and collet toolholders. When used in connection with Tendo hydraulic expansion holders or Tribos-R polygonal holders, vibration damping occurs for the overall system, the company reports. Extensions are available in clamping diameters from 0.3mm to 20mm and 1/8 ” to ¾ “.

Shrink-fit toolholder series expanded

OSG Tap & Die Inc., Glendale Heights, Ill., (www.osgtool.com) says its expanded HY-PRO series shrink-fit toolholders are for high-speed and high-precision applications.