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Paper & Printing Thermal Spray Coating

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Optimizing Paper & Printing Machinery with Durable Coatings for Smooth, Long-Lasting Operations

Our pulp and paper thermal spray protection offers excellent wear and corrosion resistance properties to rollers, drums, and guide rails. The coatings minimize downtimes, eliminate material accumulation, and increase the life cycle of equipment that undergoes moisture, chemicals, and abrasive services. Our solutions are used in the printing and packaging industries to make operations smooth and efficient.

Key Advantages of Paper & Printing Roll Coatings

Doctor Blade Wear Protection: High-hardness ceramic and carbide coatings resist wear from steel scraper doctor blades, maintaining a uniform surface without scoring.

Corrosion Barriers: Prevents rust, pitting, and oxidation on rollers from continuous exposure to water, paper pulp chemicals, and inks.

Superb Surface Finishes: Allows precision grinding and polishing to achieve exact traction roughness, matte, or mirror-like surfaces.

Cost Savings: Salvages and refurbishes worn-out shafts, drums, and cylinders rather than buying costly new replacement rolls.

High-Performance Coatings for Paper & Printing Machinery

Paper mills and printing presses operate continuously at high speeds, exposing rollers and cylinders to constant abrasion, chemical corrosion from inks and processing chemicals, and mechanical stress. Our thermal spray coatings are engineered to protect and restore critical components such as calendar rolls, dryer cylinders, ink transfer rollers, and doctor blade surfaces, ensuring consistent product quality and printing precision.

We utilize advanced tungsten carbide, ceramic, and stainless-steel coatings to achieve specific surface profiles, ranging from mirror finishes to controlled roughness. These coatings provide outstanding resistance to abrasive wear from wood fibers and fillers, while preventing corrosion from water and acidic bleaching agents. The resulting surface durability reduces roller replacements and keeps paper paths running smoothly.

Key Features & Technical Capabilities

Abrasion and Wear Defense: Protects rolls from severe scraping wear caused by doctor blades and fibers.

Corrosion Resistance: Prevents rust and pitting on rollers exposed to water-based inks and chemicals.

Tailored Surface Roughness: Allows precise control over surface finishes for optimal paper and ink release.

Cost-Effective Refurbishment: Restores worn rollers to original dimensions at a fraction of replacement cost.

FAQs for Paper & Printing Roll Coatings

1. How does thermal spray improve paper mill roll performance? +

It adds a hard, wear-resistant surface that prevents abrasion from fibers and doctor blades, ensuring consistent paper thickness and finish quality.

2. What types of rolls in paper manufacturing are coated? +

Calender rolls, guide rolls, anilox rolls, press rolls, dryer drums, and corrugating rolls are commonly protected.

3. Can you achieve mirror-like finishes on print rolls? +

Yes. Ceramic and carbide thermal spray coatings can be super-finished and polished to very low surface roughness tolerances (Ra < 0.1 microns).

4. How do coatings prevent chemical corrosion from paper pulp? +

By depositing corrosion-resistant alloys (like stainless steel, nickel, or ceramics) that create an impermeable shield against corrosive pulp chemicals.

5. Do these coatings prevent wear from doctor blades? +

Yes. Chrome oxide ceramic coatings are extremely hard and offer unmatched resistance to doctor blade scraping and abrasive wear.

6. What is the maximum size of rollers you can coat? +

Our facility is equipped to handle rollers and shafts of various dimensions, up to 6 meters in length and 1.5 meters in diameter. Please contact us for specific structural details.

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