Reverse Circulation (RC) Hammer
RH40RC14 - 3 1/4" Matrix box up thread connection

rh40rc_manual.pdfDownload RC Hammer Manual.

Value	English	Metric
Outside Diameter	3.75 inch	92.3 mm
Overall Length  ​(without bit)	40.3 inch	1024 mm
Total Weight	80 lbs	36.4 kg
Bore Size	2.95 inch	74.9 mm
Piston Weight	14.8 lbs	6.7 kg
Drillpipe Connection	​3 1/4 inch Matrix	​3 1/4 inch Matrix
Wrench Flats	3.5 inch	88.9 mm
Hole Size Range	4 inch - 4 1/2 inch	101 mm - 144 mm
Bit Shank Required	AD620	AD620
Min Air Volume Required *	250 cfm	7 cmm
Max Operating Pressure	350 psi	23.8 bar

* Hammer will run on less volume but penetration rates will be significantly slower.

Features

• 1 piece sample tube that pulls out from the top.  The hammer does not need to be disassembled to replace the tube.  Just disconnect the drill pipe and pull.
• Sample tube's material is designed for give maximum service life.
• Piston cycle produces high penetration rates.​
• Bit shrouds are easily replaced when changing bits and lock onto and rotate with the chuck.
• The shroud aids in producing and excellent sample with minimal contamination.
• Unique design makes the hammer easy to maintain and service.