| Machine Section |
Recommended Blades/Remarks |
Angle/Load Pressure |
Forming Section |
- Fiberglass/Excellent blade life, roll cleaning performance.
- Poly/Used on soft rolls, normally good life due to water.
- Micarta/Economical, may remove stickies better than poly.
|
20°/0.5-0.7 pli |
Press |
Granite/Synthetic/Ceramic
- Fiberglass/Improved wear resistance over metal blades, mild polishing.
- Carbon Fiber/Best performance for enhanced blade and roll life.
- Stainless/Less commonly used in recent years, but still acceptable for some rolls.
|
25°-30°/1.0-2.0 pli |
Soft Rolls
- Polyethylene/Over 10-15 P&J rubber and polyurethane rolls, good when lubricated.
- Micarta/Usually 1/4" thick on soft rubber rolls. Not recommended on polyurethane.
|
20°/0.5 pli |
Dryers |
- Fiberglass/Improved blade life, reduced roll scoring over metal blades.
- Carbon Fiber/Longest wearing, high flex resistance, excellent cleaning.
- Metal/Steel, stainless, bronze. Still used by some mills.
- Abrasive/For periodic build-up removal. Only on oscillating doctors.
|
30°/1.0-2.0 pli |
Calenders |
- Fiberglass/Excellent cleaning, improved blade and roll life.
- Carbon Fiber/Maximum blade life. Recommend oscillation.
- Metal/Steel, stainless or bronze.
- Micarta/Several grades available, including Spec 277. Inexpensive, but shorter life, less efficient.
|
30°/1.0-2.0 pli |
Reels |
- Fiberglass/Longer life than metal blades. Reduced roll scoring.
- Carbon Fiber/Greatest blade life.
- Metal/Steel and bronze commonly used.
|
30°/1.0-2.0 pli |
Other Applications |
Contact Essco to discuss special situations (creping, printing, converting, non-paper related). |
Varies |
Consult with your Essco representative to determine the best material for your particular application.
