Virgilio Perez Guembe
Salesregion: South & Middle America, Europe, Asia
Thermal Paint and Coating Removal from Metal Parts
Controlled removal of paints, resins, organic coatings, and stubborn production residues from heat-resistant metal parts.
Coatings and organic deposits on metal parts must be reliably removed during maintenance, refurbishment, in cases of incorrect coating, or in recurring production processes. Typical applications range from paint hangers, hooks, and racks to components of electric motors and generators, as well as suitable metal parts used in the food industry.
Thermal cleaning breaks down organic coatings and residues through controlled heat application. The appropriate method depends primarily on the component, material, coating or residue, and the desired cleaning result.
Paint and coating removal at a glance
- Application: Thermal removal of organic coatings, deposits, and production residues from suitable metal parts
- Typical components: Paint-shop hangers, hooks, racks, stators, rotors, and other components of electric motors and generators, as well as suitable metal components from industrial production processes
- Typical residues: Paints, resins, organic coatings, and baked-on or encrusted production residues
- Cleaning objective: To remove organic residues from components and prepare them for reuse, recoating, or return to production
- Industries: Painting and coating technology, industrial repair and recycling, as well as electric motor and generator technology.
Additional applications: suitable metal parts from the food industry, particularly from baked goods and confectionery production
When coatings and organic residues make reuse difficult
Paints, resins, and other organic residues can build up on metal parts or become permanently baked onto them during the production process. As the buildup increases, the functionality, continued use, or recoating of the components may be compromised. Thermal cleaning prepares suitable metal parts for reuse, recoating, repair, or further processing.
Layer build-up on paint racks and workpiece carriers
When hooks, racks, and painting hangers are reused, additional layers of paint are added with each coating process. The increasing buildup of layers can affect contours, contact points, and the continued use of the components.
Resin and insulation layers in electric motors and generators
When reconditioning electric motors, generators, stators, or rotors, resins, varnishes, and other organic insulation materials must be removed before components can be further processed, rewound, or materials recovered. Thermal stripping prepares the metal components for these subsequent steps.
Other organic residues from food production
On suitable metal parts used in the production of baked goods and confectionery, fats, sugars, dough ingredients, or other organic production residues can accumulate and, due to repeated exposure to heat, gradually form a crust or become baked on.
Which metal parts can be thermally stripped, decoated, or cleaned?
Thermal cleaning is suitable for a wide range of heat-resistant metal parts with organic coatings or stubborn deposits. The key factors are the material, geometry, coating or residue, and the permissible thermal load.
Part/Component | Typical Cleaning Task | Special Requirements |
|---|---|---|
Painting racks, hooks, and frames | Remove paints, powder coatings, and other organic coatings | Take into account geometry, materials, and repeated thermal stress |
Electric motors and generators | Remove resins, varnishes, insulation materials, and other organic deposits | Take into account the design, materials, and subsequent processing steps |
Stators and rotors | Remove resin and varnish layers from windings and metallic components | Observe thermal resistance and requirements for repair or recycling |
Metal parts from bakery and confectionery production | Remove baked-on, encrusted, or heavily adhered organic production residues | Take into account the material, geometry, and hygiene requirements of the subsequent process |
Other coated or organically contaminated metal parts can also be tested, depending on the material, construction, and thermal resistance.
Is your component not listed? Have its technical suitability tested →
What types of coatings and residues can be removed thermally?
Thermal cleaning is suitable for a wide range of organic coatings and deposits on heat-resistant metal parts. The type and amount of residue influence the required process parameters and, if necessary, the subsequent post-treatment.
Residue Group | Examples | Relevant for Evaluation |
|---|---|---|
Paints and organic coatings | Paint layers, defective coatings, multi-layer coating structures | Coating type, layer thickness, and component material |
Resins and insulation coatings | Resins and varnishes on electric motors, generators, stators, and rotors | Component structure, materials, and purpose of reconditioning |
Rubber and elastomer residues | Rubber layers and similar organic deposits | Composition and amount of residue |
Food residues | Baked-on or encrusted residues from baked goods and confectionery production | Type and quantity of organic deposits |
Greases and other organic residues | Greases and production-related organic deposits | Composition, component, and desired cleaning result |
What thermal cleaning methods are suitable?
Thermal pyrolysis processes are particularly suitable for paint stripping, coating removal, and the removal of stubborn organic residues. The component, material, type and amount of the coating, as well as the permissible thermal load, are decisive factors.
Pyrolysis for paint and coating removal
In a controlled thermal process, paints, resins, and other organic coatings are decomposed and then oxidized. Process control, temperature, and exhaust gas treatment are tailored to the specific cleaning task.
MAXICLEAN for large and sturdy components
MAXICLEAN is particularly suitable for larger, heat-resistant metal parts with halogen-free organic coatings and deposits. Typical applications include electric motors, generators, stators, and rotors, as well as larger workpiece carriers and coated components.
Adapt the process to the component and residue
Not every coating and not every component can be treated with the same process parameters. The type and composition of the coating, film thickness, component mass, material, and desired cleaning result are therefore evaluated prior to process design. In the case of unknown coatings, it is particularly important to determine whether they contain halogen-containing components.
Not sure which process is right for your paint removal or cleaning task?
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What are the requirements for the thermal paint and coating removal process?
In thermal paint and coating removal, the goal is not merely to break down organic coatings and residues. What is crucial is a controlled process that is tailored to the component, the load, and the residue.
Check for thermal stress
The temperature and process duration must be appropriate for the type of coating and the component’s thermal resistance. Controlled process management is crucial, especially for components that will subsequently be reused, repaired, or further processed.
Take into account different components and loads
The size, mass, and geometry of the parts to be decapted influence the cleaning process. The cleaning chamber, loading, and temperature control are therefore tailored to the specific task at hand.
Handle decomposition products safely
The thermal decomposition of paints, resins, and other organic residues produces gaseous reaction products. Carefully controlled process management and thermal exhaust gas treatment are therefore integral parts of the paint and coating removal process.
Post-treatment and inspection following thermal paint/coating removal
After heat treatment, the next steps depend on the component and its intended use. The key factor is whether the metal part will subsequently be recoated, repaired, recycled, or reused in the production process.
Prepare surfaces for further processing
After thermal decomposition, ash or other inorganic residues may remain on the component. If necessary, these are removed using a suitable mechanical post-treatment process before the component undergoes further processing or is recoated.
Continue to refurbish electric motors and generators
Resins, varnishes, and other organic residues are removed from stators, rotors, and other components, making the windings and metal parts accessible for repair, rewinding, or recycling.
Inspect components before reusing them
Before reuse, surfaces and functional areas are inspected for any remaining residue and to assess the condition of the component. For components used in food production, this may be followed by additional operational cleaning and hygiene procedures.
Electric motor before and after thermal cleaning (remanufactured)
What information does SCHWING need?
For the technical evaluation, the most relevant factors are the component, material, coating or residue, and the desired result. Photos or drawings make it easier to classify the item.
About the component:
- Component type and application
- Material and any existing coatings
- Dimensions, weight, and quantity
- Construction and temperature-sensitive components
- Photos or technical drawings
- Previous cleaning or stripping method
Regarding the coating or residue:
- Type of coating or organic deposit
- Known composition
- Approximate film thickness or amount of residue
- Halogen-containing components, if known
- Cleaning interval
- Desired outcome: Reuse, recoating, repair, recycling, or reuse in production
Have metal parts stripped and decoated through the SCHWING 24/7 Cleaning Service
Not every company needs its own thermal cleaning system. SCHWING handles the thermal paint and coating removal from suitable metal parts—from individual cleaning jobs and test cleanings to regular processing as part of ongoing production or maintenance processes.
The cleaning service is particularly suitable for:
- Painting Racks, Hooks, Frames, and Workpiece Carriers
- Components of electric motors and generators
- Metal parts with paint, resin, or other organic coatings
- Suitable components with baked-on organic production residues
- Test cleaning for the technical evaluation of new applications
Have metal parts stripped or decapitalized
Not sure whether a cleaning service or your own equipment makes more sense?
Compare cleaning methods on the overview page
Depending on the component and the cleaning objective, any necessary post-treatment and inspection steps can be integrated into the cleaning process. Upon request, regular cleaning intervals, as well as pickup and return, can also be incorporated into a predictable service plan.
Which metal parts can be thermally stripped, decoated, or cleaned?
Particularly suitable are metal parts with sufficient heat resistance, such as paint-coating hangers, hooks, racks, workpiece carriers, and components of electric motors and generators. Suitable metal parts from other production processes can also be thermally cleaned.
What coatings and residues can be thermally removed?
In particular, paints, resins, organic coatings, and baked-on or encrusted organic production residues can be removed thermally. Specific suitability depends on the composition, film thickness, component, and cleaning objective.
Can electric motors, stators, and rotors be thermally stripped?
Yes. For suitable components, resins, paints, and organic insulation materials can be thermally removed. This prepares the components, for example, for repair, rewinding, further processing, or recycling.
Is thermal cleaning also suitable for the food industry?
Suitable heat-resistant metal parts used in baked goods and confectionery production can be cleaned of stubborn, baked-on, or encrusted organic production residues. Necessary operational hygiene and clearance procedures follow as needed.
Will the components be completely clean after heat treatment?
Thermal treatment removes the organic components of the coating or deposit. Ash and other inorganic residues may remain and may require additional post-treatment.
Which SCHWING system is suitable for paint and coating removal?
The appropriate system depends on the component size, material, coating, amount of residue, and permissible thermal load. MAXICLEAN is particularly suitable for larger and robust components, as well as for the reconditioning of electric motors, generators, stators, and rotors.
What information does SCHWING need for a technical evaluation?
In particular, details are needed regarding the component, material, dimensions, and weight, as well as the type and amount of the coating or residue. The desired outcome is also important—for example, reuse, recoating, repair, or recycling. Photos and technical drawings facilitate the evaluation.
Have your cleaning task reviewed by a technician
Whether you’re looking for a cleaning service, a trial cleaning, or your own system:
SCHWING will help you select the right thermal cleaning process for your components, coatings, or residues, as well as your production requirements.