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The MS-3 Triple Automatic Standard-Duty Marshall Compactor compacts three 4in (102mm) asphalt samples concurrently in indexing molds. Indexing base plates and bevel-face hammers create a constant kneading action during compaction. Molds rest on steel plates covering the large oak pedestals. A powerful motor operates the hammer and indexing feature and the automatic counter automatically shuts off operation at the required number of blows. 10lb (4.54kg) bevel-face hammers and MSA-101 4in mold, base, and collar assemblies are supplied with the Compactor.
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