www.thedriller.com/articles/84737-hydraulic-casing-hammer-system
Hydraulic Casing Hammer System
March 7, 2006

Atlas Mfg. offers the option of installing a hydraulic casing hammer system on existing top-drive rigs. Packages can include a hydraulic casing hammer, hydraulic lifting cylinder, swing jib, threaded quick-connect discharge coupler, small- or large-diameter casing drive adapters, hammer latch mechanism and mast guide. A rig with an Atlas R3000, HydraLift lifting cylinder and swing-jib is shown here.
Atlas Mfg., Card No. 6