Ease sample preparation with an automatic mechanical compactor. Apparatus compacts samples at a preset number of hammer blows and shuts off on completion. Unit includes mechanical compactor, automatic counter, oak compaction pedestal and H-1341 mold assembly. Additional mold and hammer assemblies are recommended. Complies with ASTM D6926, D5581, AASHTO T245 and PTM705. Shipping wt. 198 lbs (89.8kg)