Sun Hong Paper Machine Doctor Blade

Product Description

Doctor blade is precision cleaning tools on paper machines. They are mainly used to remove pulp, debris, etc. during the paper making process, protect the cleanliness and smooth operation of paper machine parts such as paper machine rollers and drying cylinders, and improve the quality of finished paper and production efficiency.



Function of doctor blade

The most important function of the doctor blade is cleaning. When the paper machine is running at high speed, the moisture and fiber impurities in the pulp will adhere to the surface of paper machine accessories such as rollers and drying cylinders. The doctor blade is in close contact with the surface of these parts to scrape off the attached debris, ensure the cleanliness of the equipment surface, and prevent local blockage and overheating.



Doctor blade series of Sun Hong

Carbon fiber doctor blade: As the most widely used doctor blade on the market, it is composed of carbon fiber and glass fiber. It has excellent cleaning effect, wear resistance and high temperature resistance. It is suitable for paper machine drying, pressing and wire hard rubber rollers.



Glass fiber doctor blade: Glass fiber doctor blade is a combination of ultrafine fiber and epoxy resin. It has good chemical properties, good adhesion to the roller surface and high temperature resistance. It is suitable for various rollers from the wire part to the curling part of the paper machine.



Cotton fiber doctor blade: It uses special cotton fiber cloth, and its bending strength can reach **0MPa. It has good performance. Cotton fiber doctor blade is a thermosetting blade, which can withstand high temperature of **0 degrees and is suitable for hard rubber rollers.



HDPE doctor blade: This doctor blade is suitable for soft rubber rollers, polyurethane rollers, etc., and can withstand high temperature of *0 degrees. It can be divided into 3 million and 6 million according to the molecular content.



Phosphor bronze doctor blade: Phosphor bronze doctor blade is softer than other metal blades and is not easy to damage the roller. It can be used for drying cylinders, Yankee drying cylinders and cast iron rollers.



Stainless steel doctor blade: The hardness of quenched stainless steel is HRC****6, which is mainly used for pressing stone rollers and hard rubber rollers in the pressing section.



Sun Hong can provide you with various doctor blades. We can recommend suitable doctor blades for you according to your paper machine parameters and production paper types, and we can also customize the corresponding doctor blades for you according to the drawings you provide to ensure the perfect fit of the doctor blades and improve your production efficiency.