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Graco GMax II 3900 Procontractor Optimum Petrol Spray Unit

GMax II 3900 ProConnect Optimum Airless Sprayer
£3,308.14 excl VAT

The GMAX II 3900 ProConnect Optimum is the ideal unit to spray a full range of coatings on residential, commercial and industrial jobs.  It sprays perfectly acrylics, primers, emulsions, waterborne and solvent based paints.

  • Heavy Duty Cart Design  -  The proven design of cart and wheel make this powerful unit very easily transportable to the job-site.
  • ProConnect  -  ProConnect no-tools pump removal system allows you to replace your pump in seconds, without any tools, on the job, quick and easy.
  • Hose Reel  -  Roll on and off in a few seconds. 45 m hose, giving an autonomy to spray in a range of 90 m without transporting the unit. Easy for transport, easy for storage.
  • Honda Engine  -  Compact and lightweight reliable motor technology, very easy to start. Comes with oil alert which helps to guarantee the optimal performance of the motor.


  • Max tip size  -  1 gun = 0.035", 2 guns = 0.023"
  • Max pressure  -  230 bar (3300 psi)
  • Flow  -  4.7 litres per minute
  • Weight  -  50 kg (109 lbs)
  • Max hose length  -  45m
  • Engine  -  Honda 120 cc / 3.5 hp @ 3600 rpm
  • Fuel tank capacity  -  2.5L
Products specifications
Spray Type Airless
Type of user Industrial
Machine Mobility Cart
Max tip size 36 thou
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An airless spray machine is ideal for large areas and for speedy application. Paint is pumped under pressure through a small tip that atomises it into a fan. Most professional machines are ideal for emulsion and masonry coatings, a higher specification machine can support more than one gun or even spray plaster. 

Used correctly airless is clean and fast, by adding attachments such as a power roller you can use your machine in more confined areas but still with increased speed and efficiency.

Airless spraying is 6 times faster than brush & roller so your investment can soon be paid back by savings in time.