G-Force Nova GFNQ8000 QL80 Shank

Hammer Specifications - G-Force Nova QL80 Shank

Nova Logo

G-Force QL80 diagram

Features:
  • No foot valve required
  • Easy to service
  • Special heat-treated alloy piston for long life, Rockwell hardness 60
  • Minimum loss of performance when injecting foam or water

Item # Description Part #
1 Back Head GFN8501
2 Back Head O-Ring GFN8502
3 Back Head Washer GFN8503
4 Air Check Valve GFN8504
5 Air Check Valve Spring GFN8505
6 Buffering Washer GFN8506
7 Make-up Rubber GFN8507
8 Air Guide GFN8508
9 Air Guide Plug (Choke) GFN8509
10 Air Guide O-ring GFN8510
11 Air Distributor GFN8511
12 Air Distributor O-ring GFN8512
13 Cylinder GFNQ8513
14 Wear Sleeve GFNQ8514
15 Piston GFNQ8515
16 Piston Stop Ring (Buffering) GFN8516
17 Bit Bearing GFNQ8517
18 Bit Bearing O-Ring GFNQ8518
19 Bit Retainer GFNQ8519
20 Bit Retainer O-Ring GFNQ8520
21 Chuck Washer GFN8521
22 Chuck (Drive Sub) GFNQ8522

Specifications


Length (w/o drill bit) 56.1"
Outside Diameter 7.28"
Weight (w/o bit) 441 lbs.
Cylinder Bore 5.925"
Piston O.D. 5.92"
Piston Stroke 2.38"
Piston Weight 92.9 lbs.
Hole Sizes 7 7/8" - 10"
Air Pressure Consumption 150 psi - 350 psi
Wrench Size A/F 5.512"
Connection Std. 4 1/2" API Reg Pin

Air Consumption Chart


PSI 150 200 250 300 350 400
CFM with blank choke 445 650 850 1,045 1,240 -
with 1/8" choke - - - - - -
with 1/4" choke - - - - - -

All Hammers come Fitted with blank Choke located in the Air Check Valve




Lubrication

G-Force 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 1/3 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 2 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:


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

READ WARNING LABEL ATTACHED TO HAMMER.