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G-Force SD4 Hammer (4")

Regular Price:

$4,200.00
OR
  • DESCRIPTION
  • REVIEWS
  • G-Force GFM4000 SD4 Shank

    Hammer Specifications - G-Force SD4 Shank

    Main Features

    • Manufactured from the finest steel available in today's market

    • Several different types of stress-relieving and heat-treatment processes are performed on these hammers

    • Carburizing of the piston makes for long-lasting products

    • Hardness of 60 HRC

    • Back reaming carbides on 6” Models

    • No make-up rings to replace

    • No shims

    • Easy to service

    • Fast performance, unparalleled

    • Runs excellent under water

    • Handles injection of foam and polymers, without affecting performance

    Item #

    Description

    Part #

    1

    Back Head

    G4001

    2

    Back Head O-Ring

    G4002

    3

    Choke

     

    4

    Air Check Valve

    G4004

    5

    Air Check Valve Spring

    G4005

    6

    Make-Up Rubber (Buffering)

    G4006

    7

    Air Guide

    G4007

    8

    Air Distributor

    G4008

    9

    Air Distributor O-Ring

    G4009

    10

    Cylinder

    G4010

    11

    Cylinder Stop Ring

    G4011

    12

    Wear Sleeve

    G4012

    13

    Piston

    G4M4013

    14

    Piston Stop Ring

    G4M4014

    15

    Bit Retaining O-Ring

    G4M4015

    16

    Bit Retaining Ring

    G4M4016

    17

    Chuck (Drive Sub)

    G4M4017

     

    Choke Plug Kit

    G4029

     

    O-Ring Kit

    G4030

    Features:

     
    • Easy to service

    • Special heat-treated alloy piston for long life, Rockwell hardness 60

    • Minimum loss of performance when injecting foam or water



    Length (w/o drill bit)

    39.76"

    Outside Diameter

    3.858"

    Weight (w/o bit)

    82.4 lbs.

    Cylinder Bore

    3.229"

    Piston O.D.

    3.224"

    Piston Stroke

    3.74"

    Piston Weight

    20.3 lbs.

    Hole Sizes

    4"- 6"

    Air Pressure Consumption

    100 psi - 350 psi

    Wrench Size

    A/F 3.15"

    Connection

    Std. 2 7/8" API Reg Pin

    Air Consumption Chart

    PSI

    150

    200

    250

    300

    350

    400

    CFM with blank choke

    240

    340

    440

    540

    -

    -

    with 1/8" choke

    375

    595

    760

    925

    1,060

    1,205

    with 1/4" choke

    425

    665

    845

    1,095

    1,270

    1,350


    All Hammers come Fitted with Blank Choke located in the Dart 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 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 - 500 lbs.

    Maximum @ 350 psi - 1800 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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