Page 77 - MetalForming October 2019

Automatic Die Cushion
Control
Ross Controls Booth D45348
Ross Controls showcases its new auto- matic die cushion control system that inte- grates air-valve technology with electrical con- trols to monitor and control pressure in the die cushion. This base- mounted valve man- ifold complements the Ross family of assemblies for metal forming applications. The system is available in a 1.5-in. inlet port size, and the units, which include a butterfly control valve and slow-raise cushion circuit, are furnished with M12 or Brad-Harrison connectors. Fill and dump valves interface with controls to monitor and maintain correct die cushion
pressures.
This automatic die cushion control
assembly, as described by company offi- cials, quickly and easily controls pressure in the cushion accumulator tank, opens and closes a large butterfly valve between the tank and cushion cylinder, and provides a slow-raise function that fully extends the cushion cylinder without excessive, damaging force. www.rosscontrols.com
Portable Hardness Tester
King Tester Booth D47151
King Tester shows its Brinell portable hardness tester, versatile enough to test virtually any metal shape. The user places the metal specimen between the anvil and the test head, cranks the test head down onto the specimen—locking the tester in place, closes the pressure release valve, and pulls the hydraulic lever until reaching the desired load. The tester applies up to a 3000-kgf load on a 10- mm ball, making a lasting impression, available for re-reading at any time. A bypass valve, automatically activated at
the calibrated load, eliminates the chance of overloading. The impression is read and recorded by the operator using either a KingScope or KingScan IV automatic Brinell microscope. With the ability to mix and match bases and heads, microscopes and accessories, the Brinell tester is com- pletely customizable. www.kingtester.com
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