Anti-sticking Calender Roll For High Speed Papermaking

1.1 High-Temperature & High-Pressure Calendering Zones

• Conditions: Roller surface temperature 120–350°C, linear pressure 0.5–2.5 MPa, continuous 24/7 operation.

• Challenges: Thermal deformation, surface softening, scratch formation, uneven pressure distribution.

• Tianmeng’s Solution: HVOF tungsten carbide ceramic coating (thermal stability up to 500°C) maintains hardness and flatness under high heat/pressure, ensuring consistent calendering quality.

1.2 High-Humidity & Corrosive Papermaking Wet/Dry Ends

• Conditions: RH 85–100%, steam condensation, residual acids/alkalis and sizing agents in pulp.

• Challenges: Rust, pitting, coating peeling, reduced surface finish.

• Tianmeng’s Solution: Dense anti-corrosion coating (porosity <1%) forms a protective barrier against moisture and chemicals, extending service life by 3–5x vs. ordinary rolls.

1.3 High-Speed & Heavy-Wear Production Lines

• Conditions: Machine speed 800–1500 m/min, wide web (2–10 m), constant friction with paper, fibers and doctor blades.

• Challenges: Severe abrasion, surface scratches, frequent maintenance, paper defects (streaks, uneven gloss).

• Tianmeng’s Solution: High-hardness composite coating (≥1200HV, 3–5x more wear-resistant than chrome plating) resists friction, keeps surface ultra-smooth (Ra 0.01–0.02 μm) and minimizes unplanned downtime.

1.4 Multi-Industry Harsh Scenarios

• Cultural/Coated Paper: High gloss & smoothness requirements, filler abrasion (calcium carbonate, clay).

• Tissue/TAD Paper: Extreme humidity, high-temperature steam, fiber adhesion risk.

• Packaging/Printing Paper: Heavy pressure, ink/chemical contamination, anti-sticking demand.

• Plastic Film/Nonwoven: High heat, polymer adhesion, strict thickness tolerance.

2. Jinan Tianmeng’s Coated Calender Rolls: Outstanding Performance

2.1 Premium Thermal Spray Coatings (Core Advantage)

• Tungsten Carbide (WC-Co) Coating: Best for high-wear zones; hardness 1200–1300HV, wear resistance 5–8x steel, excellent abrasion resistance.

• Anti-Fouling PTFE Composite Coating: For chemical/fouling environments; surface tension ≤18 mN/m, repels fibers, ink and pulp residues.

• Nickel-Based Alloy Coating: For strong corrosion; resists acids/alkalis, prevents rust/pitting in high-humidity areas.

• Ultra-Smooth Sealing Coating: For high-precision calendering; surface roughness Ra ≤0.01 μm, mirror finish, no scratches.

2.2 Key Performance Superiority

• Exceptional Durability: Coatings bond firmly (≥75MPa bonding strength), resist peeling/flaking; service life extends from 6–8 months to 3+ years, cutting maintenance costs by 60%+.

• Unmatched Surface Quality: Ultra-smooth coating ensures paper gloss ↑15%+, smoothness ↑20%+, thickness uniformity error ≤±0.01mm; eliminates streaks/wrinkles.

• Stable Extreme Condition Performance: Precision-machined high-strength steel roll body resists thermal deformation/vibration; uniform pressure distribution supports high-speed (1500 m/min) and wide-web production.

• Eco-Friendly & Cost-Effective: Replaces toxic hard chrome plating (RoHS/REACH compliant); coatings are repairable, reducing total ownership cost.

3. Full Customization for Your Unique Needs

3.1 Customizable Dimensions

• Diameter: φ100 mm – φ800 mm

• Face Length: 500 mm – 10,000 mm

• Wall Thickness: 10 mm – 50 mm

• Surface Roughness: Ra 0.01 μm – 0.8 μm (custom finish)

3.2 Scenario-Based Coating & Spec Options

4. Why Choose Jinan Tianmeng Calender Rolls?

• 20+ Years Expertise: ISO 9001 certified, high-tech enterprise; trusted by global paper mills and converters.

• Harsh Environment Proven: Successfully applied in TAD paper machines and high-speed calenders, stable under extreme heat/humidity/corrosion.

• Quality & Efficiency: Boosts product grade (up to 99.2% yield), reduces downtime and energy consumption (↓15–16%).

• Global Support: Custom design, manufacturing, coating and after-sales service for overseas clients.

Conclusion