Graco Inc.

GMAX II 7900 Roof Rig  Gas-Mechanical Airless Sprayer

A heavy-duty gas-powered airless sprayer for professional contractors spraying roof coatings

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The GMAX II 7900 Roof Rig is the industry standard for professional contractors who spray a full range of coatings on residential, commercial and industrial jobs. Powered by Honda engines, this portable rig will go anywhere the job demands. Configured with the ProConnect Pump Removal System and the Endurance Advantage Program, you can be assured that you will be spraying on the job!

  • ProConnect pump removal system - no-tools removal makes Endurance pump swap out fast and easy.
  • SmartControl Pressure Control - advanced microprocessor control delivers a consistent spray fan at all spraying pressures.
  • Contractor preferred Honda Engine with Oil Alert.
  • Easy Out Pump Filter - reduces tip clogs and ensures quality finish.
  • Advantage Drive System with lifetime guarantee provides peace of mind.

GMAX II 7900 Roof Rig Includes:

  • Heavy-Duty Gun
  • LTX527, LTX635 SwitchTips and Guard
  • 20 in (50 cm) Fixed Heavy-Duty Tip Extension
  • 3/8 in x 50 ft (9.5 mm x 15 m) BlueMax II Airless Hose
  • 1/4 in x 3 ft (6.4 mm x .9 m) BlueMax II Whip Hose

GMAX II 3900/5900/7900, TexSpray 5900HD/7900HD Airless Sprayers Repair
Honda GX120 Engine
ANSI Power Rating @ 3600 rpm
4.0 Horsepower
3.0 kW
Honda GX160 Engine
ANSI Power Rating @ 36000 rpm
5.5 Horsepower
4.1 kW
Honda GX 200 Engine
ANSI Power Rating @ 3600 rpm
6.5 Horsepower
4.8 kW
Maximum Working Pressure
3300 psi
228 bar, 22.8 MPa
Noise Level
Sound Power
105 dBa per ISO 3744
105 dBa per ISO 3744
Sound Pressure
96 dBa measured at 3.1 ft
96 dBa measured at 1 m
Maximum Delivery Rating
3900
1.25 gpm
4.73 lpm
5900/5900HD
1.60 gpm
6.06 lpm
7900
2.20 gpm
8.33 lpm
Maximum Tip Size
3900
1 gun with 0. 036 in tip, 2 guns with 0. 023 in tip, 3 guns with 0. 018 in tip
1 gun with 0. 036 in tip, 2 guns with 0. 023 in tip, 3 guns with 0. 018 in tip
5900/5900HD
1 gun with 0. 043 in tip, 2 guns with 0. 029 in tip, 3 guns with 0. 023 in tip, 4 guns with 0. 019 in tip
1 gun with 0. 043 in tip, 2 guns with 0. 029 in tip, 3 guns with 0. 023 in tip, 4 guns with 0. 019 in tip
7900
1 gun with 0. 048 in tip, 2 guns with 0. 035 in tip, 3 guns with 0. 027 in tip, 4 guns with 0. 023 in tip
1 gun with 0. 048 in tip, 2 guns with 0. 035 in tip, 3 guns with 0. 027 in tip, 4 guns with 0. 023 in tip
Inlet Paint Strainer
12 mesh stainless steel screen, reusable
893 micron stainless steel screen, reusable
Outlet paint filter
60 mesh stainless steel screen, reusable
250 micron stainless steel screen, reusable
Pump inlet size
1-5/16–12 UN-2A
1-5/16–12 UN-2A
Fluid outlet size: 3900/5900
¼ npsm from fluid filter
¼ npsm from fluid filter
Fluid outlet size: 7900
3/8 npsm from fluid filter
3/8 npsm from fluid filter
Wetted parts
zinc-plated carbon steel, PTFE, nylon, polyurethane, UHMWpolyethylene, fluoroelastomer, acetal, leather, aluminum, tungstencarbide, nickel- and zinc-plated carbon steel, stainlesssteel, chrome plating
zinc-plated carbon steel, PTFE, nylon, polyurethane, UHMWpolyethylene, fluoroelastomer, acetal, leather, aluminum, tungstencarbide, nickel- and zinc-plated carbon steel, stainlesssteel, chrome plating
Dimensions 3900
Weight
109 lb
50 kg
Height
31.5 in
80.0 cm
Width
22.25 in
56.5 cm
Length
32.0 in
81.3 cm
Dimensions 5900
Weight
139 lb
64 kg
Height
32.25 in
81.9 cm
Width
24.5 in
62.2 cm
Length
32.25 in
81.9 cm
Dimensions 7900
Weight
146 lb
67 kg
Height
32.25 in
81.9 cm
Width
24.5 in
62.2 cm
Length
33.0 in
33.0 cm
Dimensions TexSpray 7900HD
Weight
157 lb
71 kg
Height
32.25 in
81.9 cm
Width
24.5 in
62.2 cm
Length
33.0 in
83.8 cm