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The MS-5 Automatic Heavy-Duty Marshall Compactor compacts one 4in asphalt specimen into an indexing mold. Heavy-duty frames reduce structural and mechanical wear and tear during operation. The bevel-face hammer and indexing base plate produce a consistent kneading action during compaction. Molds are secured with a cam-action lever assembly and an automatic counter shuts off the unit at completion of the compaction process. An oak pedestal with a steel plate, a 10lb (4.5kg) bevel-face hammer, and the MSA-101 4in mold, base and collar assembly are included. The MS-5 Automatic Compactor converts to compact 6in Marshall specimens by adding the MSA-113 22.5lb (10.2kg) bevel-face hammer and MSA-106 6in mold.
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