Spray gun needle sizes 1mm, 1.2mm, 1.5mm

Technical specifications

Name: Spray Gun Needle Sizes 1mm, 1.2mm, 1.5mm

Latin Name: Atomizing Needle or Spray Gun Needle Shaft

Group Technical Number: NCS150-SP-GUN-NDL or NCS-150-04-NDL

Material: High-quality pharmaceutical grade Stainless Steel 316L (1.4404) for absolute resistance to acids, bases and cleaning solvents.

Station: Coating Spray Gun Assembly

Application in the machine: This needle is pulled back pneumatically (by air pressure behind its end piston) to open the coating solution path, and when the pressure is cut off, it is pushed forward by the spring and opens the path. Completely blocks. The sharp, stepped tip of this needle cleans the fluid outlet (Fluid Tip) with each reciprocating movement to prevent particle accumulation, coating material caking, and nozzle clogging during long-term coating operations.

Technical specifications: This piece, which works as a hollow tube with an internal piston, has the following features:

Tip material: To prevent wear caused by the high-pressure passage of coating solution particles (especially titanium dioxide), the needle tip is hardened or made of tungsten carbide or ceramic.
End section: Has a step and a wide holder disk (at the far right of the image) for precise locking in the gun’s pneumatic mechanism and engagement with the return spring. Surface finish: Mirror polished with a standard Ra < 0.4 µm to prevent drug material from sticking to the needle body.