America West Drilling Supply Header Image - Large
Website redesign graphic

This G-Force Nova M50 DTH Hammer uses the latest technology in No Foot Valve hammer bits increasing reliability, performance, and production.

Hammer Specifications – G-Force Nova 2.0 M50 Shank

G-Force Nova M50 DTH Hammer

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 #DescriptionPart #
1Back HeadGFN5501
2Back Head O-RingGFN5502
3Air Check ValveGFN5503
4Air Check Valve SpringGFN5504
5Air GuideGFN5505
6Air Guide Plug (Choke)GFN5506
7Air Guide O-RingGFN5507
8Make-Up RubberGFN5508
9Air DistributorGFN5509
10Air Distributor O-RingGFN5510
11CylinderGFN5511
12Wear SleeveGFN5512
13PistonGFNM5513
14Piston Stop RingGFN5514
15Bit BearingGFNM5515
16Bit Bearing O-RingGFN5516
17Bit RetainerGFNM5517
18Bit Retainer O-RingGFN5518
19Chuck (Drive Sub)GFNM5519
20O-Ring KitGFN5520

Specifications

Length (w/o drill bit)43.39"
Outside Diameter4.88"
Weight (w/o bit)152 lbs.
Cylinder Bore4.00"
Piston O.D.3.99"
Piston Stroke2.09"
Piston Weight28.8 lbs.
Hole Sizes5 1/2" - 8"
Air Pressure Consumption150 psi - 450 psi
Wrench SizeA/F 3.46"
ConnectionStd. 3 1/2" API Reg Pin

Air Consumption Chart

PSI150200250300350400
CFM with blank choke3434816187488931,031
with 1/8" choke3885286888089481,088
with 1/4" choke4235787338881,0431,198

Lubrication

G-Force Nova 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
AROX EP 150
MATEX
RDO 302
CASTROL
RD OIL DP 100
SHELL
AIR TOOL OIL 2 A 320
MOBILE
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.

Hammer 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

Views: 15