LA3 Spray Gun

The spray gun is made of the latest supersonic spray gun design and structure innovation and optimization in the United States, the spray gun is rated as the most stable and reliable universal air supersonic flame spray gun by global users, the spray gun only uses propane or propylene as fuel when used, and has high safety. Customers can also choose to add hydrogen for use, when hydrogen is not used, the parameters in the hydrogen parameter bar in the parameter setting interface are set to 0 value, when hydrogen needs to be used, the starting value, running value, duration and ramp parameters of the hydrogen parameter bar can be set in the parameter setting interface, and when the equipment is started, the hydrogen flow rate will automatically ramp up to the operating value, which can increase the powder deposition rate. In addition, the gun can also be used as a pre-treatment blasting of the workpiece.
The main structure of the LA3 spray gun is the way in which the combustion chamber is connected to the 2-stage combustion nozzle, part of the air is used to support combustion, and part of it is used to cool the front end of the barrel, and the cooled air is then folded back into the barrel, and secondary propane is added to mix with air to burn to produce more heat energy. After combustion, the flame gas instantly expands several times, and the inside of the gun body pushes the powder particles stronger, so that the particles fly faster, and the coating presents excellent characteristics, such as low porosity and higher coating hardness.

Figure: LA3 supersonic flame spraying system gun

LA3 Supersonic flame spray gun technical specifications (standard configuration)

1.0Mechanical Fabrication: Employed for auto components, industrial pump parts like crankshafts and impellers, aiming to refurbish worn areas, fortify surfaces, and augment wear resistance as well as reliability.

2.Petrochemical Sector: Handling pipelines, reaction vessels and so on, warding off medium-induced corrosion and abrasion, safeguarding the lifespan and security of offshore platform installations.

3.Power Generation: In thermal, hydro and wind power facilities such as boiler tubes and steam turbine blades, the spraying process is implemented to withstand high temperatures and wear, curbing the occurrence of accidents.

4.Aerospace Industry: Utilized for spraying crucial elements like engine blades and landing gear, providing high-temperature and corrosion resistance to guarantee flight safety.

5.Mold Production: For diverse molds including injection molds and die-casting molds, post-surface spraying leads to extended mold life, excellent molding quality and effortless demolding.

6.Medical Appliances: Applied to artificial joints and surgical instruments to enhance biocompatibility and safety, facilitating the integration of bone tissue.

7.Building Materials Field: Offering anti-corrosion for bridges and steel structures, and also being utilized for stone and ceramic materials to boost waterproof, anti-fouling and wear-resistant capabilities.

Product Operate Guide     

1. Equipment inspection: Carefully check whether the spray gun is damaged, whether the connection parts are tight, focus on cleaning and checking the nozzle and air cap to ensure that there is no blockage.

2. Air source connection and debugging: Steadily connect the air intake interface with the filtered and dry air source, clamp the air pipe, and adjust the air pressure to 0.4 - 0.6MPa.

3. Preparation of spraying materials: Select materials according to the task, sieve the powder, mix the liquid in proportion, control the viscosity of the coating at 15 - 25s with a viscometer, and load it into the feeding device to ensure smoothness.

4. Wearing protective equipment: Operators wear protective glasses, masks, gloves and work clothes. 

5. Flame flow adjustment: Use the knob (or button) of the operation panel to adjust the flame flow speed and temperature, and increase clockwise and decrease counterclockwise according to the requirements of materials and coatings.

6. Adjustment of powder feeding amount: Adjust through the scale knob (or slider), start from a small amount, and adjust it according to the test spraying situation to prevent improper powder feeding from affecting the coating.

7. Atomization gas volume adjustment: Find the adjustment knob (or button), cooperate with multi-factor adjustment, increase the vaporization gas volume can refine the fog droplets, but avoid blowing away the powder.

Q1: What is the rate of the LA3 gun and how does it affect the results?

A: The LA3 gun is designed according to the principle of rocket generator, and the flame flow speed can reach more than 2000m/s. The high-speed flame flow can make the sprayed material adhere to the surface of the workpiece quickly and evenly, greatly improve the work efficiency, and also allow the powder to fully melt, and improve the bonding strength and quality of the coating.

Q2: What is the range of power output adjustment of the spray gun and can it be adapted to different tasks?

A: The output power is large and can be adjusted steplessly. Whether it's a delicate thin coating job or a large project that requires heavy protection, the power can be flexibly adjusted to meet the needs of different working conditions and ensure excellent spraying results.

Q3: Is routine maintenance complicated for the LA3 gun?

A: Not complicated. After each use, clean the paint cup, nozzle and other parts with an appropriate solvent in time to prevent the paint residue from curing and clogging the spray gun. Regularly inspect nozzles, air caps, needle plugs and other components, replace them in time if they are worn or damaged, and lubricate the moving parts.