Manual Compaction Hammers

Manual Compaction Hammers are sliding drop hammers used for compaction of moisture-density relationship (Proctor) soil samples. Only Gilson Hammers feature 100% 303 stainless steel construction for maximum corrosion resistance and long service life. Hammer masses are enclosed in guide sleeves with vent holes that ensure unrestricted free-fall. The heavy knurled hexagonal cap is welded to the tube, and allows a secure, comfortable grip during use and prevents rolling during storage. Both hammer models have a 2in (51mm) flat, circular face. Inquire for old-style U.S. Army Corps of Engineers Compaction Hammers.

HM-550 5.5lb Manual Compaction Hammer has 5.5lb (2.5kg) hammer mass with 12in (305mm) drop.

HM-551 10lb Modified Manual Compaction Hammer has 10lb (4.5kg) hammer mass and 18in (457mm) drop.

Features:

• Gilson exclusive 100% 303 stainless steel for long life and corrosion resistance
• Knurled cap offers secure grip and will not roll

• Manual Compaction Hammer, 5.5lb with 12in drop, or Modified, 10lb with 18in drop