Alfa Laval GJ A6

The revolutionary Alfa Laval GJ A6 tank cleaning machine is designed for permanent installation and to provide true germ and bacteria-free cleaning to meet the demands of the beverage, food, pharmaceutical, and personal care industries.

The design of the GJ A6 tank cleaning machine completely eliminates all areas for potential bacteria growth, making it ideal for sanitary cleaning applications. Variable flow rates and a consistent 360° spray pattern ensure reproducible and repeatable cycles that provide thorough and verifiable cleaning. Its compact size fits through a standard three inch sanitary fitting, and its light weight makes for easy handling and maneuverability.

The Alfa Laval GJ A6 tank cleaning machine is patented and represents the first validatable method of providing true aseptic tank cleaning from a permanently installed impingement cleaner for sanitary applications.


The Gamajet tank cleaning product range is world-renowned for setting high standards for cleanliness to enable companies to sustain high product quality and plant productivity. As part of that range, the Alfa Laval GJ A6 tank cleaning device delivers powerful tank cleaning that provides reliable, repeatable, and verifiable results to meet the demands of the pharmaceutical, personal care, beverage, food, and dairy industries. Designed to fit through a three inch sanitary fitting, the device is ready for permanent installation and is the perfect alternative to time-intensive spray balls and costly manual tank cleaning.

Technical data
Lubricant Self-lubricating
Throw Length (max) 6 - 19 ft
Working Pressure 30 - 400+ psi
Recommended Pressure 30 - 150 psi
Working Temperature (max) 203°F
Ambient Temperature (max) 284°F
Weight 4 lb
Connections 1 inch slip fit, 1.5 inch tri-clamp, 1.5 inch tube weld, 1 inch DIN 1185RI slip, 1 inch DIN 1185R2 slip (standard options); 12, 18, 24 inch inlet connections, 3 inch CAP, 1.5 inch TC inlet (available options)
Materials 316L, PEEK (EPDM, FFKM, and FKM available)
2.1 & 3.1 material certificate

The Gamajet range of high impact tank cleaning devices combine pressure and flow to create high impact cleaning jets. Cleaning occurs at the point at which the concentrated stream impacts the surface. It is this impact and the tangential force that radiates from that point which blasts contaminants from the surface, scouring the tank interior. In conjunction with this impact, the device is engineered to rotate in a precise, repeatable, and reliable 360° pattern. This full-coverage, global indexing pattern ensures the entire tank interior is cleaned, every time.


The choice of nozzle diameters can optimize jet impact length and flow rate at the desired pressure. As standard documentation, the Alfa Laval GJ A6 can be supplied with a “Declaration of Conformity” for material specifications.

Cleaning Pattern
Cleaning Pattern
The above drawings show the cleaning pattern achieved on a cylindrical horizontal vessel. The difference between the first cycle and the full pattern represents the number of additional cycles available to increase the density of the cleaning.
Dimensional Data
A (in)8.75
B (in)6.19
C (in)2.10
D (in)1.18
E (in)2.67
F (in)2.72
G (in)3.64

Note: One inch R-clip collar or one-and-a-half inch butt weld.

Cleaning Time

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