How to choose a doctor blade that suits your paper machine?
Doctor blade is widely used in paper making, printing and other industries. In the paper making industry, doctor blades are mainly divided into three types: cleaning blades, wrinkling blades and coating blades.
Cleaning blades are used to remove dirt from the surface of paper machine rollers, drying cylinders, etc. by contacting with the surface of the equipment to scrape and achieve cleaning and protection.
The doctor blade uses its blade edge to generate appropriate contact pressure with the surface of rotating or fixed equipment to physically scrape off the adhesive on the surface of the equipment (it is necessary to pay attention to the material selection of the scraper and the design of the blade angle to avoid affecting the scraping effect and the impact on the equipment). damage to the equipment).
Next is a form produced by Sun Hong to help you choose a suitable doctor blade:
Name of rolls | Surface material of rolls | Material of Doctor blade | Install Angle |
Breast roll | Hard rubber (0-3P&J) | HDPE, Epoxy resin | 25° |
Epoxy Resin | PP | 25° | |
Wire drive roll | Hard rubber (0-3P&J) | HDPE, Epoxy resin | 25° |
Epoxy Resin | PP | 25° | |
Felt roll | Hard rubber (0-3P&J) | HDPE,Epoxy resin | 25° |
Epoxy Resin | HDPE,PP | 25° | |
Press Roll | Hard rubber (0-3P&J) | Stainless steel, Epoxy resin | 15°-30° |
Stone roll | Stainless steel, Epoxy resin | 25°-30° | |
Stainless steel | Epoxy resin | 25 | |
Quenched Cast iron | Stainless steel, Epoxy resin | 25 | |
Groove press roll | Rubber (4-20 P&J) | HDPE | 15°-25° |
Epoxy Resin | HDPE | 15°-25° | |
Dryer cylinder | Chrome steel | Epoxy resin | 25°-30° |
Cast iron | Hard steel, Epoxy resin, phosphor bronze | 25°-30° | |
Quenched Cast iron | Hard steel, Epoxy resin, phosphor bronze | 25°-30° | |
Steel | Epoxy resin, phosphor bronze | 25°-30° | |
Stainless steel | Epoxy resin | 25° | |
Calender roll | Quenched cast iron | Epoxy resin, HDPE,hard steel | 25°-30° |
Steel | Epoxy resin, HDPE,hard steel | 25°-30° | |
Reel cylinder | Quenched cast iron | Epoxy resin,phosphor bronze | 25°-30° |
Steel | Epoxy resin,phosphor bronze | 25°-30° |
Sun Hong can provide a variety of doctor blade of different specifications: Carbon Fiber,Glass Fiber, Cotton Fiber, HDPE, Stainless Steel, Carbon Steel, Phosphor Bronze Doctor Blade, etc., which can be customized according to your needs to provide you with professional technical support and services to help optimize paper making production process to improve the overall quality and production efficiency of paper.
