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Titan Fine-Finish Sprayer Parts · AirCoat
Shop diagram-matched components for the Titan AirCoat Air-Assisted Hopper Assembly, including the hopper cover, fine and coarse filter screens, mini hopper, return tube, return fitting, return-tube assembly, and five-liter hopper assembly. Match the exploded-view item number to the exact Titan part number before ordering.
The Titan AirCoat 620 Hopper Assembly is the material-supply section that stores coating and delivers it directly to the fluid pump of the AirCoat 620 Air-Assisted Airless Spray System. This compact feed arrangement is suited to applications where operators need controlled material handling, efficient color changes, reduced coating waste, and convenient operation with smaller production quantities.
Unlike a siphon system that draws material from a separate container, the hopper positions the coating supply close to the pump inlet. Gravity assists material movement toward the fluid section, helping the pump prime efficiently and maintain a dependable supply of coating during spraying. The shorter material path can also reduce the amount of coating required to fill and flush the system.
The hopper assembly includes the material container and the supporting connection, sealing, filtering, mounting, and fluid-routing components that transfer coating into the pump. These parts must remain clean, securely fitted, and correctly sealed to prevent air entry, material leakage, restricted flow, contamination, and interruptions in pump operation.
During operation, coating placed in the hopper moves through the outlet and connected fluid passage toward the pump inlet. The pump then pressurizes the material and sends it through the high-pressure filter and fluid regulator before it reaches the spray hose and AirCoat gun. Compressed assist air introduced at the gun improves atomization and spray-pattern control while the hopper maintains the coating supply required by the fluid-delivery system.
A properly maintained AirCoat 620 Hopper Assembly supports reliable priming, steady material flow, easier cleaning, and efficient coating changes. Dried coating, damaged seals, loose connections, blocked passages, or contamination inside the hopper can restrict material delivery and produce symptoms that resemble pump, regulator, filter, or spray-gun problems.
The exploded parts diagram provides a clear reference for identifying each hopper, outlet, sealing, filtering, mounting, and connection component used in the assembly. Matching the diagram callout with the correct Titan part number helps technicians replace the required components while preserving the original material-flow performance and serviceability of the AirCoat 620 Air-Assisted Airless Spray System.
Use the symptom to narrow the likely storage, filtration, feed, or return-flow area, then inspect connected components before ordering.
These major storage, filtration, and return-flow components represent the most important AirCoat hopper repair areas. Match each product to the correct exploded-view item and Titan part number.
Seals the material hopper to help prevent contamination, splashing, and material loss during operation or transport.
Fine-mesh hopper screen that removes smaller debris and contaminants before coating material reaches the spray system.
Coarse-mesh screen designed to capture larger contaminants while supporting flow of heavier coating materials.
Compact material container used for smaller batches, touch-up work, and frequent coating changes.
Routes returning coating material through the AirCoat feed system to support recirculation and flow stability.
Complete five-liter material hopper assembly used to restore AirCoat coating storage and gravity-feed capability.
Follow this sequence to reduce fitment mistakes and avoid replacing parts that are not responsible for the operating problem.
Note whether the problem involves restricted feed, contamination, spills, return-flow failure, leakage, or damaged hopper parts.
Confirm the Titan AirCoat hopper setup and determine whether the application uses the mini hopper or complete hopper assembly.
Locate the component on the exploded hopper drawing and record its numbered item and exact Titan part number.
Select the fine or coarse filter screen according to the coating material and the part specified for the application.
When replacing a screen, inspect the hopper, cover, outlet, return tube, and coating condition. When replacing a return tube or return-tube assembly, inspect the fitting, connection points, and hopper mounting area for damage or hardened material.
The Titan 0090617 fitting is shown on the live page as discontinued. Do not build a repair plan around that item without confirming current availability or an approved replacement.
Use these verified internal links to continue directly to the AirCoat hopper diagram and major replacement components.
Use these answers to identify hopper, filtration, cover, feed, return-tube, and material-flow repairs.
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