G-Force Nova GFNM5500 M50 Shank

Hammer Specifications - G-Force Nova M50 Shank

Nova Logo

G-Force M50 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 GFN5501
2 Back Head O-Ring GFN5502
3 Buffering Washer (Steel) GFN5503
4 Air Check Valve GFN5504
5 Air Check Valve Spring GFN5505
6 Make-up Rubber GFN5506
7 Air Guide Plug (Choke) GFN5507
8 Air Guide GFN5508
9 Air Guide O-ring GFN5509
10 Air Distributor GFN5510
11 Air Distributor O-ring GFN5511
12 Cylinder GFN5512
13 Wear Sleeve GFNM5513
14 Piston GFNM5514
15 Piston Stop Ring (Buffering) GFN5515
16 Bit Bearing O-Ring GFN5516
17 Bit Bearing GFNM5517
18 Bit Retainer O-Ring GFN5518
19 Bit Retainer GFNM5519
20 Chuck (Drive Sub) GFNM5520

Specifications


Length (w/o drill bit) 43.39"
Outside Diameter 4.88"
Weight (w/o bit) 152 lbs.
Cylinder Bore 4.00"
Piston O.D. 3.99"
Piston Stroke 2.09"
Piston Weight 28.8 lbs.
Hole Sizes 5 1/2" - 8"
Air Pressure Consumption 150 psi - 450 psi
Wrench Size A/F 3.46"
Connection Std. 3 1/2" API Reg Pin

Air Consumption Chart


PSI 150 200 250 300 350 400
CFM with blank choke 343 481 618 748 893 1,031
with 1/8" choke 388 528 688 808 948 1,088
with 1/4" choke 423 578 733 888 1,043 1,198

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 - 750 lbs. Maximum @ 350 psi - 2500 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.