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G-Force GFM8000 SD-8 Shank

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Hammer Specifications - G-Force SD-8 Shank

 

Length (w/o drill bit) 53.15" 1,350.45 mm
Outside Diameter 7.09" 180 mm
Weight (w/o bit) 423 lbs. 192 kg
Cylinder Bore 5.99" 152 mm
Piston Stroke 4.33" 110 mm
Piston Weight 98 lbs. 44.5 kg
Top Thread
4 1/2 " API Reg Pin
Hole Sizes 7 7/8"
10"
200 mm
245 mm
Air Pressure Consumption 150 PSI     
250 PSI    
300 PSI    
450 CFM
850 CFM
1080 CFM
Wrench Size A/F 4 1/2" 114 mm

Connection

Std. 4 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
  • Back reaming buttons
  • Minimum loss of performance when injecting foam or water; DRILLS WELL UNDER WATER

 

Air Consumption Chart

 

PSI
150
200
250
300
350
400
CFM
450
530
850
1080
1320
1500

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

Lubrication

The Missile LXQ Series Hammers are precision-made tools and should be treated as such. Only the highest quality lubrication should be used and a constant flow of oil must be maintained at all times. Recommended lubrication amount 1 Pint per 100 cfm per hour.

Recommended Grades of Lubricant

ESSO
MATEX
CASTROL
SHELL
MOBILE
AROX EP 150
RDO 302
RD OIL DP 100
AIR TOOL OIL S2 A 320
ALMO NO. 5

Heavy duty oil is recommended for all year-round use, in particular where air supply to the hammer is at high temperature. If lighter grade oil is required due to very low ambient temperatures, amount of oil being used should be increased by 30 percent.

Recommended Pull Down

Minimum @ 100 psi - 2500 lbs.
Maximum @ 350 psi - 6500 lbs.

Missile Warranty will be voided by the following:

  1. Welding on Wear Sleeve.
  2. Heating Case with a Torch.
  3. Gripping Wrenches across Threads.
  4. Hammering on Casing.

READ WARNING LABEL ATTACHED TO HAMMER.

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