commercial jet plane in a hangar

Aerospace Parts Washing Systems

Graymills offers stand-alone and multi-stage and -process cleaning systems for aerospace applications that require thorough cleaning of complex and sensitive components.

Our stand-alone and multi-process wash systems are suited to aerospace applications that require sophisticated cleaning of sensitive equipment.

In aerospace cleaning applications, parts washers must deliver effective cleaning, support environmentally responsible processes, and adapt to changing and demanding maintenance, overhaul, and manufacturing workflows. Graymills provides aerospace parts washing systems designed for sensitive components, complex geometries, and critical cleaning requirements.

Graymills offers aerospace customers a wide range of parts washing solutions, including manual, immersion, ultrasonic, and spray cleaning systems, along with solvent, aqueous, biodegradable, and bioremediating cleaning chemistries. Our machines can be customized to suit your requirements. Typical customizations provide automated loading/unloading, temperature controls, and multi-stage clean, rinse and dry. That range helps make the selection process No Confusion by matching the right cleaning method and chemistry to the part, soil, and process.

Graymills also makes it No Risk. The Graymills test lab can evaluate different cleaning methods and chemistries on your sample parts and provide documented results to help identify the best solution before purchase.

And it is No Worries. Graymills parts washers are manufactured in the USA, backed by decades of application experience, and can be customized for aerospace requirements including automated loading and unloading, temperature controls, and multi-stage clean, rinse, and dry processes.

With successful installations supporting airlines, maintenance hubs, and rebuilders in the United States and around the world, Graymills brings practical experience to aerospace parts cleaning applications that demand consistent, dependable results.

Contact us to discuss your aerospace parts cleaning requirements.

What types of aerospace parts require industrial washing?

Aerospace parts washers are used to clean a wide range of components, including turbine components, hydraulic system parts, landing gear components, actuators, engine housings, fasteners, structural components, and precision machined parts. In aviation MRO and aerospace manufacturing, cleaning is often required before inspection, overhaul, coating, assembly, or return to service. Graymills systems are designed to remove grease, hydraulic fluid, carbon deposits, metal chips, machining residues, and other contaminants from both complex precision parts and heavier assemblies.

Aerospace parts cleaning often requires tighter process control, more consistent results, and greater attention to part material, contamination type, and geometry than general industrial cleaning and is most similar to cleaning found in the medical sector. Many aerospace applications require controlled wash, rinse, and dry steps, chemistry compatibility, and repeatable cleaning performance before inspection or reassembly. Graymills helps aerospace and aviation MRO customers select and configure the right cleaning method based on the part, the contaminant, and the level of cleanliness required.

Aerospace parts washing can involve several different cleaning methods, depending on the application:

  • Manual cleaning for targeted, flexible cleaning and operator-controlled part handling
  • Spray washing for faster removal of contaminants using heat, pressure, chemistry, and flow – it can also be hands-off
  • Immersion cleaning for thorough cleaning of all surfaces, including hard-to-reach areas
  • Ultrasonic cleaning for delicate parts, small passages, and complex geometries
  • Multi-stage wash, rinse, and dry systems for higher process control and repeatability

Graymills offers all of these approaches, allowing aerospace manufacturers and MRO facilities to match the cleaning system to the job instead of forcing one method into every application.

The right method depends on part geometry, contamination level, and required cleanliness specification.

Ultrasonic cleaning is recommended for aerospace parts with small passages, blind holes, threads, internal cavities, and intricate geometries that are difficult to clean thoroughly with spray alone. It is especially useful for precision machined and delicate parts where detailed, uniform cleaning is important. Because ultrasonic cleaning intensity can be controlled, it is a strong option when cleaning effectiveness and part sensitivity both matter.

Yes. Graymills aerospace cleaning systems can be customized to fit the application, workflow, and cleanliness requirement. Options may include:

  • Automated loading and unloading
  • Multi-stage wash, rinse, and dry cycles
  • Temperature controls
  • Advanced filtration
  • Part rotation systems
  • Integrated drying systems

Custom configurations can help aerospace manufacturers and aviation MRO facilities improve throughput, reduce manual handling, and support more consistent cleaning results.

Graymills offers both solvent and aqueous cleaning systems, along with filtration and fluid-management options that can help reduce waste and extend solution life. Many aerospace facilities prefer aqueous cleaning for certain applications, especially where certifications are required, while others continue to use solvent systems where they fit the process. The right solution depends on the parts being cleaned, the contamination involved, the cleaning chemistry, operating practices, and local environmental and safety requirements.

Aerospace MRO facilities use parts washers throughout inspection, overhaul, and rebuild operations. Cleaning is often a necessary step before non-destructive testing, coating, dimensional inspection, repair, or reassembly. In Part 145 maintenance environments, parts cleaning can easily become a bottleneck because jobs vary by material, contaminant, and geometry. Graymills helps MRO teams choose cleaning systems that make this process faster, more repeatable, and easier to manage.

Yes. Graymills can test your sample parts using different cleaning methods and chemistries to help identify the best approach for your application. This gives aerospace and aviation MRO customers better visibility into cleaning performance before equipment is specified or purchased. Testing helps reduce guesswork and provides greater confidence that the recommended system will meet the application requirements.

Yes. Most Graymills parts washers are manufactured in the United States and installed globally, supporting aerospace customers from domestic airlines to international maintenance facilities.

Common aerospace contaminants include:

  • Hydraulic fluid
  • Grease and oil
  • Carbon deposits
  • Machining chips
  • Cutting fluids
  • Protective coatings
  • Assembly residues

The required cleaning process depends on the contaminant type, the part material, and the cleanliness standard the part must meet. Proper removal ensures compliance with inspection and performance standards.

Multi-stage wash systems improve quality control by separating cleaning (ultrasonic or immersion), rinsing, dipping (if required) and drying into controlled steps. This helps improve repeatability, reduce cross-contamination, and support more consistent cleanliness results before inspection or assembly. In aerospace manufacturing and MRO environments, that added process control can help parts move more reliably through the next stage of production or maintenance.

The right cleaning method depends on the part size, material, contamination level, geometry, throughput needs, and required cleanliness result.

  • Manual cleaning is often a good fit for targeted flexible cleaning, lower-volume work, and applications where technicians need direct control.
  • Immersion cleaning works well when parts need thorough all-surface cleaning, including hard-to-reach areas, and when hands-off operation is valuable.
  • Ultrasonic cleaning is best for precision parts, delicate materials, and complex geometries with small passages or internal features.
  • Spray washing is a strong choice when you need faster cleaning using heat, pressure, chemistry, and flow, especially for more repeatable cleaning of heavier or dirtier parts.

Graymills offers all four cleaning styles, so the best choice is based on the actual MRO application, not a one-size-fits-all machine.

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