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G-Force SD-4 Shank

 

SD-4 G-Force Hammer - $3,875.00 Quantity

 

Hammer Specifications - G-Force SD-4 Shank

 

Length (w/o drill bit)	39.76"	1,009.88 mm
Outside Diameter	3.86"	98 mm
Weight (w/o bit)	84 lbs.	38 kg
Cylinder Bore	3.23"	82 mm
Piston Stroke	3.74"	95 mm
Piston Weight	26 lbs.	11.5 kg
Top Thread	2 3/8" API Reg Pin Optional 2 7/8" available
Hole Sizes	4" 6"	101 mm 152.40 mm
Air Pressure Consumption	150 PSI      250 PSI     300 PSI	240 CFM 440 CFM 540 CFM
Wrench Size	A/F 4 1/2"	114 mm
Connection	Std. 3 1/2 " API Reg Pin (Other connections available by special order)

 

Features:

 

• Easy to service
• Special heat-treated alloy piston for long life, Rockwell hardness 60
• Minimum loss of performance when injecting foam or water; DRILLS WELL UNDER WATER

 

Air Consumption Chart

 

PSI	100	150	200	250	300	-
CFM	150	240	340	440	540	-

Air Pressure Regulating with Choke

 

Size	150 PSI	200 PSI	250 PSI	300 PSI	350 PSI	400 PSI
1/8"	375	595	760	925	1060	1205
1/4"	425	665	845	1095	1270	1350

 

All Hammers come Fitted with Blank Choke located in the Dart Valve

Click Here for Parts Drawing

 

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