With a 120 cc Honda engine and additional features for increased productivity, the GMAX II 3900 can handle up to two guns and is ideal for the professional contractor who sprays a wide variety of coatings.
GMAX II 3900 Gas-Mechanical Airless Sprayer
Ideal for the professional contractor who sprays a wide variety of coatings


The Standard Series sprayers come with these "Only On A Graco" features:
- Advantage Drive System Runs quiet and has a lifetime guarantee.
- SmartControl 3.0 Pressure Control – Delivers consistent spray fan without pressure fluctuations at all spraying pressures.
- Endurance Pump – Amazingly durable design lasts twice as long as the next leading brand.
- Honda Engine – Delivers maximum performance and contractor preferred reliability.
- Rugged Cart Design – Chrome over steel makes this durable cart last for years.
- Easy Out Pump Filter – Less mess when changing or cleaning the filter.
- Heavy-Duty Prime Valve – Maintenance-free design withstands high pressure dumping.

The ProContractor Series sprayer has all the features of the Standard Series, plus:
- QuikReel – Deploy and rewind up to 300 feet of hose in seconds without twists, kinks or coils.
- Ready To Spray – A total of 100 feet of hose and gun already installed.
- ProConnect 2 – Change out the pump using no tools in seconds resulting in quickly getting back to work.
- LED Display – Bright easy-to-read LED display shows pressure readout, job/lifetime/ gallon counter and self diagnostics.
- WatchDog – Save the pump from damage when paint runs out or a hose breaks.
- On-Board Toolbox – End frustration and save time by never again searching for tips, filters, and tools.

Also available in Lo-Boy configuration with same features as Standard Series plus ProConnect 2 Pump System.
The Lo-boy configuration is not available in Europe, Middle East and Africa.
The Lo-boy configuration is not available in Europe, Middle East and Africa.
Standard Series and Lo-Boy units include:
- Contractor Gun
- RAC X 517 SwitchTip and Guard
- 1/4 in x 50 ft (6.4 mm x 15 m) BlueMax II Airless Hose
ProContractor Series unit includes:
- Contractor Gun
- RAC X 517 SwitchTip and Guard
- 2 each – 1/4 in x 50 ft (6.4 mm x 15 m) BlueMax II Airless Hose
マニュアル
- 333305C - GMAX 3400, GMAX II 3900/5900/7900, and TexSpray 5900HD/7900HD Airless Sprayers Operation (Japanese) [その他の言語]
- 332921K, Manual, GMAX 3400, GMAX II 3900/5900/7900 and TexSpray 5900HD/7900HD Airless Sprayers, Parts, English (英語のみ)
- 3A0321B - GMAX II 3900/5900/7900, TexSpray 5900HD/7900HD Airless Sprayers Repair (Japanese) [その他の言語]
- 3A0269A GMAX II 3900/5900/5900 Convertible/7900, Texspray 5900HD Convertbile/7900HD Airless Sprayer Manual Collation (English) 3A0269 (英語のみ)
- 3A0307B GMAX II 3900/5900/5900HD/5900 Convertible/7900, TexSpray 5900HD Convertible/7900HD Airless Sprayers Operation (Japanese) [その他の言語]
- 3A0244G GMAX II 3900/7900, TexSpray 5900HD/7900HD Airless Sprayers, Parts, English (英語のみ)
- 310892F; GMAX II 3900/5900/5900HD/5900 Convertible/7900 TexSpray 5900HD Convertible/7900HD Airless Sprayers Operation (English) (英語のみ)
333305C - GMAX 3400, GMAX II 3900/5900/7900, and TexSpray 5900HD/7900HD Airless Sprayers Operation (Japanese)
3A0321B - GMAX II 3900/5900/7900, TexSpray 5900HD/7900HD Airless Sprayers Repair (Japanese)
資料
- Gas Airless Sprayers Brochure [その他の言語]
- 300718ENEU GMAX™ II (HD 3-in-1) Standard [その他の言語]
- 300719ENEU GMAX™ (HD 3-IN-1) ProContractor [その他の言語]
- 300769ENEU GMAX™ (HD 3-IN-1) IronMan [その他の言語]
300718ENEU GMAX™ II (HD 3-in-1) Standard
300719ENEU GMAX™ (HD 3-IN-1) ProContractor
GMAX II 3900 Airless Sprayers | |
U.S. Metric | |
Engine | |
Honda GX120 Engine | |
ANSI Power Rating @ 3600 rpm | 4.0 Horsepower 3.0 kW |
Sprayer | |
Maximum Working Pressure | 3300 psi 228 bar, 22.8 MPa |
Maximum Delivery Rating | 1.25 gpm 4.73 lpm |
Inlet Paint Strainer | 8 mesh (2589 micron) stainless steel screen, reusable 8 mesh (2589 micron) stainless steel screen, reusable |
Outlet Paint Filter | 60 mesh (250 micron) stainless steel screen, reusable 60 mesh (250 micron) stainless steel screen, reusable |
Pump Inlet Size | 1-5/16-12 UN-2A 1-5/16-12 UN-2A |
Fluid Outlet Size | 1/4 npsm from fluid filter 1/4 npsm from fluid filter |
Maximum Tip Size | 1 Gun with 0.036 in. tip 1 Gun with 0.036 in. tip |
2 Guns with 0.023 in. tip | 2 Guns with 0.023 in. tip 2 Guns with 0.023 in. tip |
3 Guns with 0.018 in. tip | 3 Guns with 0.018 in. tip 3 Guns with 0.018 in. tip |
Wetted parts | zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW, fluoroelastomer, acetal, leather, aluminum, tungsten carbide, stainless steel, chrome plating zinc- and nickel-plated carbon steel, PTFE, nylon, polyurethane, UHMW, fluoroelastomer, acetal, leather, aluminum, tungsten carbide, stainless steel, chrome plating |
Dimensions | |
Weight: | |
GMAX 3900 Standard | 106 lb 48.2 kg |
GMAX 3900 Lo-Boy | 123 lb 55.9 kg |
GMAX 3900 ProContractor | 133 lb 60.5 kg |
GMAX 3900 Rental Pro 360G | 106 lb 48.2 kg |
Height (handle extended): | |
GMAX 3900 Standard | 40.8 in 103.6 cm |
GMAX 3900 Lo-Boy | 26.4 in. 67.1 cm |
GMAX 3900 ProContractor | 38.3 in. 97.3 cm |
GMAX 3900 Rental Pro 360G | 40.8 in. 103.6 cm |
Length (handle extended): | |
GMAX 3900 Standard | 38.3 in. 97.3 cm |
GMAX 3900 Lo-Boy | 46.9 in. 119.1 cm |
GMAX 3900 ProContractor | 32.3 in. 82.0 cm |
GMAX 3900 Rental Pro 360G | 38.3 in. 97.3 cm |
Width: | |
GMAX 3900 Standard | 22.3 in. 56.6 cm |
GMAX 3900 Lo-Boy | 24.4 in. 62.0 cm |
GMAX 3900 ProContractor | 22.3 in. 56.6 cm |
GMAX 3900 Rental Pro 360G | 22.3 in. 56.6 cm |
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 |