Humboldt’s DCPs are known for their high quality manufacturing and reliability, and, are available with either threaded connections or a quick-connect design. Both Humboldt DCPs feature our exclusive easy-grip hammer that provides a finger grip machined into the back side of the hammer flange, which provides easy, non-slip lifting when performing a test.
Humboldt DCPs consist of a drive hammer and steel extension shaft assembly with a 60° hardened cone tip attached at one end. The cone tip is driven into the pavement or sub grade by means of a sliding dual-mass hammer. The diameter at the base of the cone is 20 millimeters, which is 8 millimeters larger than that of the extension shaft. Humboldt DCPs can also quickly convert to a single- mass unit for use in weaker soils having low CBR values or foundation evaluations by removing the outer sleeve from the dual-mass hammer.
The H-4219QC Set includes:
Dual-Mass DCP Hammer, Quick-Connect Connection — H-4219QC.1
Drive Rod, Quick-Connect, 37.75″ — H-4219QC.2
Quick-Connect Pins — H-4219QC.18
Disposable Cone Adapter (3/8-16 threads) — H-4219.5
Hard Tip Cone (3/8-16 threads) — H-4219.4
Disposable Cones (25) — H-4219.25
Scale, 48″ — H-4219.2
Single-user Scale Guide Set — H-4219.17
Wrench Set (Threaded) — H-4219QC.7
Go, No-Go Gauge — H-4219.3
Pelican Case — H-4219.16