The MP series is single impacting and has steel strike plates and plated pistons for longer life. The MP's also have an internal spring for horizontal mounting.

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The MP 'Pin Mount' has a sturdy steel rod on one end. The MP comes with a matching steel block that can be welded in place. The pin then slips into the steel block. Simply weld mounting blocks wherever mild vibration is occasionally needed and move the MP to the location that requires it.

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ST series are specifically designed for portability. The ST has all of the features of the MP, but has a stud on one end for easy changeovers and replacements.

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