Gamajet 7 Tank Cleaning Machine

Gamajet 7 Tank Cleaning MachineThe Smallest Rotary Impingement Tank Cleaner

The Gamajet 7 Tank Cleaning Machine is a small, powerful unit ideal for cleaning all types of barrels, drums and small vessels. It eliminates extensive handling by offering one-step, one-insertion cleaning.

The Gamajet 7 Tank Cleaning Machine can deliver fast “as new” cleaning in less than two minutes, and works especially well in tough cleaning situations involving wine, paint, and other difficult to clean materials.

The combination of rugged, long-lasting design, powerful jet spray cleaning; and field serviceability have long made Gamajet the first choice for cleaning among the world’s best known companies. The Gamajet 7 Tank Cleaning Machine represents a major technological break-through, offering the most powerful cleaning in a compact, easy to handle size. Capable of running with the pressure and flow of your standard pressure washer.

Gamajet 7 Technical Spec

Operating Range

  • Pressure: 20 to 500 psi (1.4 to 34.0 bar) standard model
  • 20 to 700+ psi (47.6 bar) high pressure model
  • Temperature: -60° to 250°F (-29° to 121°C)
  • Flow Rate: 30 to 320 gpm (114 to 1211 l/min)
  • Cleaning Radius: 100′ (30.48 Meters)
  • Wash Cycle Time: 3 to 30 Minutes
  • Nozzle Rotation Speed: 2 to 20 rpm
  • Impact: 85 lbs (39 kg) at 25′ (7.5 m)

Overall Dimensions

  • Height: 12.2″ (309.88 mm)
  • Diameter: 4.2″ (106.68 mm)
  • Width: 6.1″ (154.94 mm) including nozzle housing

Clearance Dimensions

  • Pin Drive: Dual: 12.7″ (322.58 mm)
  • Triple: 11.5″ (292.1 mm)

Optional Clutch Drive

  • Dual: 6.7″ (170.18 mm)
  • Triple: 9.6″ (243.84 mm)
  • Weight: Dual: 28 lb (12.7 kg)
  • Triple: 29 lb. (13.2 kg)

Dual Inlet Connection

  • Standard: 2″ NPT female and 2 1/2″ quick disconnect male
  • Optional: 2″ NPT female and 2 1/2″ NST (NH) hose thread male

Other Options

  • Directional Units
  • Bronze Castings
  • High Impact Nozzles

Other Specifications

Construction / Design

New Features: Streamlined turbine and internal flow passages, including a patented porting design that significantly improves efficiency.


Investment cast parts of type 316 stainless steel ensure consistent strength & quality for higher pressure ratings. Shafts: Rotor shaft and gearbox shafts are made of hardened stainless steel. For increased wear resistance, the rotor shaft is supplied with a plasma-sprayed ceramic or other protective coating. The rotor shaft is also fitted with a polished carbide thrust washer for added durability.

Bearings, Shaft

Rotor shaft bearings are tungsten carbide. Gearbox shaft bearings in flo-thru (oilless) gearboxes are PTFE or other non-cupric materials. Standard bearings in oil-lubricated gearboxes are Oilite bronze with nonmetallic bearings available as an option.

Seals, Static

O-ring materials are selected for each application. Viton is standard. Drive Gears: A new gear system of improved design and construction is incorporated in Gamajet IV “GT” models for increased wear life: All gears are manufactured entirely of selected stainless steel alloys and the two bottom gears are fitted with long-life tungsten carbide thrust washers.

Lubrication, Gearbox

Sealed: Oil-lubricated machines have a sealed gearbox filled with FDA approved oil. Flo-thru: The flo-thru gearbox is lubricated by the cleaning solution. With this option, maintenance of gearbox seals is eliminated. Lubrication, Waterside: A controlled amount of the cleaning solution is permitted to flow through the tee and nozzle housing bearings for lubrication and cooling.

Self-Cleaning Provisions

A low-pressure bypass system keeps the bevel gears and other internal parts flushed free of debris that could interfere with proper functioning.


Interchangeable nozzles are now available in twelve sizes from 5/8″ (15.9mm) down to .177″ (4.5 mm). Nozzle sizes of 1/4″ (6.35 mm) and smaller are offered with new tungsten carbide inserts for improved jet wear at high pressures.

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