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BIG KAISER's Mega Perfect Grip milling chuck eliminates pullout during heavy duty milling

BIG KAISER introduces the Mega Perfect Grip from BIG Daishowa, a simple to handle, heavy-duty milling chuck for heat resistant super alloys (HRSA) that eliminates end mill pullout under heavy torque loads.

For manufacturers using milling chucks, pullout is a major issue, particularly when machining HRSA's such as titanium or inconel. In demanding applications, such as in the energy and aerospace markets, there is a need for guaranteed security against pullout – ensuring there is no costly damage to parts, or delays in manufacturing processes.

The Mega Perfect Grip, with fully concentric clamping, combines the accuracy and cutting performance of heavy-duty milling chucks with the security against pullout of solid side-lock tool holders.

The concept is rather simple, and assembly is quick. To keep the system cost-effective, it is based around milling cutters with a standard Weldon flat (ASME B94.19-1997). No special grinding or threading of the milling cutter is required.

To assemble, insert the exclusive key grip into the Weldon flat of the end mill. Align the key grip with one of three key grip grooves inside the chuck body, and insert the cutting tool until it depresses a spring in the clamping bore. The spring functions to remove the gap between the key grip and the wall of the groove, and to provide a slight axial preload on the tool until final tightening is performed. Rotate the end mill approximately 20° until the grip stops securely against a stopping pin. This engagement prevents any slip under high torque. Finalize assembly by tightening the clamping nut until it contacts the positive stop of the chuck body.

The three key grip grooves in the chuck body also serve to provide channels for high volume coolant to reach the cutter, which is required in milling HRSAs to dissipate heat and to remove chips efficiently.

“Pullout can be a big headache when working with HRSAs – costing time and money, and hitting manufacturers' profitability,” says Jack Burley, VP Sales & Engineering. “This innovative chuck solves the problem completely, combining innovation with ease-of-use and industry standards.”

Press release issued by BIG Kaiser Precision Tooling Inc. on March 14, 2016


 Contact details from our directory:
BIG Kaiser Precision Tooling Inc. Boring Equipment, Drilling Equipment, Milling, Tooling, Cutting Tools, Workholding Fixtures, Metal Removal Tools, Drill Bits


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