GeoTek Alaska, Inc.
alaska environmental
GeoTek Alaska

SPT Automatic Drop Hammer

GeoTek Alaska uses a Geoprobe® DH66 Automatic Drop Hammer which conforms to ASTM D1586-99 Standard Test Method for Penetration Test and Split Barrel Sampling of soils. The 140 pound (64 kg) weight has a 30 inch (762 mm) free fall before making contact with the anvil, thus, every test is performed the same. The DH66 advances an ASTM standardized 2 in. (51mm) OD x 24 in. (610mm) length split spoon sampler.

Consistent results with no human error
No cables or ropes needed for operation
45 blows per minute driving rate
Drop hammer can be used with either hollow stem auger or our 3.25 in. probe rod system

(click any photo above to enlarge)

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