Drum Dryer Coatings for the Food Industry

PR Rolls provides high-performance drum dryer coatings for the food industry, helping food producers improve dryer performance, surface durability, product release and process reliability.

Our Tecno Diamond FS coating is a food-grade approved thermal coating developed especially for drum dryer applications. It is designed for demanding food production environments where hygiene, wear resistance, cleanability and stable drying performance are critical.

Drum dryers are widely used in food processing for drying liquid, paste-like and slurry-based products into flakes, powders or other dry ingredients. In this process, the condition of the dryer drum surface has a direct impact on product quality, release behaviour, cleaning needs and production efficiency.

Food-grade coating for drum dryers
In food production, drum dryer surfaces must withstand heat, moisture, mechanical wear, cleaning cycles and continuous contact with food materials. A worn or poorly performing drum surface can cause sticking, uneven drying, difficult cleaning and unnecessary production stops.

PR Rolls’ Tecno Diamond FS coating has been developed to support reliable drum dryer operation in the food industry. The coating is especially suitable for applications where the dryer surface must remain durable, clean and consistent over time.

The coating helps food producers achieve:

• Improved drum dryer surface durability
• Better wear resistance
• Improved release properties
• Reduced sticking and build-up
• Easier cleaning
• More stable product quality
• Longer service life for dryer drums
• Reduced maintenance-related downtime

Why drum dryer coating matters in food production
The drum dryer surface plays a central role in the drying process. Food material is applied to the heated drum surface as a thin layer, dried through contact with the drum, and then removed from the surface. If the drum surface is damaged, worn or contaminated, the drying process can become less efficient and less predictable.

A high-quality food-grade drum dryer coating can help maintain a more controlled surface condition. This supports consistent heat transfer, cleaner operation and better product release.

For food producers, this can mean:

• More predictable drying results
• Lower risk of product sticking to the drum
• Better hygiene and cleanability
• Less unplanned maintenance
• Improved production uptime
• More consistent end-product quality

Tecno Diamond FS coating for demanding food applications
PR Rolls’ Tecno Diamond FS is a thermal coating developed in cooperation with Tampere University as part of the FoodSafe project. According to PR Rolls, the coating is especially well suited for drum dryers and enables PR Rolls to expand its on-site service offering to the food industry.

The coating is designed for demanding operating conditions where both technical performance and food-grade suitability are required. This makes it a strong solution for food industry drum dryers used in continuous production.

Typical applications may include drum drying processes for:

• Starches and cereal-based products
• Dairy-based products
• Infant food ingredients
• Fruit and vegetable preparations
• Purees, pastes and slurry-based food products
• Flakes, powders and instant ingredients
• On-site coating services for drum dryers

PR Rolls specializes in on-site services for industrial rolls and cylinders. For food industry drum dryers, on-site coating can help reduce downtime by avoiding unnecessary disassembly, transport and long production interruptions.

Depending on the condition of the drum, the service can include inspection, measurement, surface preparation and coating. When needed, grinding or other surface preparation can be carried out before coating to ensure the best possible result.

A complete drum dryer coating service may include:

• Drum dryer inspection
• Surface condition assessment
• Measurement and documentation
• Surface preparation
• Grinding when required
• Application of food-grade coating
• Final quality control
• Recommendations for future maintenance
• Improved release, cleanliness and service life

One of the main benefits of drum dryer coating is improved surface behaviour. In food production, release properties are especially important because many products can stick to the drum surface during drying.

A properly selected and applied coating can help reduce build-up and make the surface easier to keep clean. This can support better hygiene, shorter cleaning times and more stable production.

At the same time, the coating protects the drum surface from wear. This helps extend drum service life and reduce the need for frequent maintenance.

Benefits of PR Rolls drum dryer coatings
PR Rolls’ drum dryer coating solution is designed for food producers who need reliable performance, food-grade suitability and long service life.

Key benefits include:

• Food-grade approved coating solution
• Developed especially for drum dryer applications
• High wear resistance
• Improved release properties
• Reduced sticking and build-up
• Better cleanability
• Longer drum service life
• Support for consistent food product quality
• Reduced downtime through on-site service capability

Partner for food industry drum dryer maintenance
With long experience in roll and cylinder maintenance, PR Rolls helps customers improve the performance and lifetime of critical production equipment. Our expertise in coating, grinding, inspection and on-site services allows us to support food industry customers with practical, technically reliable maintenance solutions.

Whether your goal is to improve product release, reduce cleaning needs, extend drum lifetime or increase production reliability, PR Rolls can help you choose the right coating solution for your drum dryer.

Request a coating assessment for your drum dryer
If your drum dryer surface is worn, difficult to clean or causing release problems, PR Rolls can help assess the condition of the drum and recommend the most suitable coating solution.

Contact PR Rolls to discuss food-grade drum dryer coatings for your production process.