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EnglishViews: 0 Author: Site Editor Publish Time: 2026-03-20 Origin: Site
The doctor blade is important part for paper machine. It's mainly used for cleaning the roll and cylinder surface. According to different use position, roll surface material, and working temperature are corresponding to suitable docotor blade material.
1. Scrape off attachments on the roller/cylinder surface: wet pulp, dry pulp, adhesive, resin, filler.
2. Ensure paper quality: prevent paper diseases, spots, holes, and broken ends.
3. Protect the roller surface: reduce wear, corrosion, and sticking to the cylinder.
4. Stable operation: Improve dehydration, drying, and calendering effects.
| Phenolic resin | Does not damage the soft roller, medium and low temperature |
| Epoxy resin | Wear-resistant, high temperature resistant |
| Carbon fiber | Lightweight, highly wear-resistant, and suitable for high-speed machine |
| Stainless steel/carbon steel | Hard cylinder, heavy stain |
| Rubber/polyurethane | Soft, scratch resistant roller surface |
| According to Roll Surface Material | |
| Rubber Roll, polyurethane roll, rubber coated roll | Phenolic resin, carbon fiber, HDPE Do not use steel material |
| Stone roll, ceramic roll, composite hard roll | Epoxy resin, carbon fiber |
| Dryer Cylinder, cast iron roll, chrome coated roll, stainless steel roll | Steel, carbon steel, stainless steel , epoxy resin |
| According to Working Temperature | |
| ≤110℃ | Phenolic resin, epoxy resin (wet, pressing, pre drying) |
| 110℃～180℃ | Epoxy resin, glass fiber, steel (Dryer section, size press, calender) |
| ＞180℃ | (Dryer cylinder, Yankee cylinder) Carbon steel/stainless steel |
| According to Stain Type | |
| Wet pulp, sticky pulp, and easily scraped materials | Phenolic resin, epoxy resin |
Dry pulp, hard scale, resin, adhesive material | Epoxy resin, carbon fiber, steel |
| Corrosive pulp (chemical, specialty paper) | Stainless Steel |
