Paper Machine Spare Parts

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What is a Doctor Blade?

As a high-precision cleaning device on paper machines, doctor blade is mainly used to remove debris and excess water from the surfaces of rollers, dryer cylinders and other parts to prevent blockage and local overheating. Through efficient scraping, the stable operation of the paper machine and the production of high-quality paper are ensured. In addition to playing a key role in papermaking, doctor blade is also widely used in printing, textile and other industries. Choosing a suitable doctor blade can not only optimize the production process but also ensure product quality.

Sun Hong doctor blade series includes: carbon fiber, glass fiber, HDPE, phosphor bronze and other materials. Provide you with professional wear-resistant, high-precision doctor blade.

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Excellent Cleaning Effect

Sun Hong adopts advanced cutting edge design to ensure effective removal of surface debris on rollers, dryer cylinders and other equipment.

High Efficiency Energy Saving & Equipment Protection

Optimize production efficiency, improve production quality, reduce friction through precise scraping by the doctor blade, and extend the service life of related equipment.

Precision Design & Customized Services

According to the customer's parameters and drawings to ensure that every detail of the doctor blade meets the required standards and the perfect match of the doctor blade.

Perfect After Sales Service

Provides customers with professional installation guidance and training. It has a complete after-sales service system and responds to customer needs quickly.

Paper Machine Doctor Blade Classification and Advantages

Carbon Fiber Doctor Blade

Carbon fiber doctor blade is one of the best selling scrapers on the market. It is made of carbon fiber and glass fiber, and has the characteristics of light weight, high strength, wear resistance, high temperature resistance and corrosion resistance. It is mainly used in paper machine dryer cylinders, chrome-plated rollers, rubber rollers, stone rollers, etc.

Glass Fiber Doctor Blade

Glass Fiber Doctor Blade is also one of the commonly used doctor blade. It is made of ultra fine fiber and epoxy resin. It has good chemical resistance and wear resistance. It can withstand high temperatures up to 185° and can be used for various rollers from paper machine wire section to curling section.

HDPE Doctor Blade

HDPE doctor blade has excellent corrosion resistance, low cost, light weight and good wear resistance. The smooth surface of HDPE doctor blade can reduce friction when in contact with equipment. It is often used for soft rubber rollers and polyurethane rollers in the wet section of paper making machines.

Cotton Fiber Doctor Blade

Cotton fiber doctor blade is compositely processed with natural cotton fiber as the base material. It is mainly used to clean the debris on the surface of the roller in the wet end of the paper machine. Because it uses cotton fiber to avoid scratches when cleaning the roller surface, it can effectively extend the service life of the dryer cylinder and rollers.

Phosphor Bronze Doctor Blade

Phosphor bronze doctor blade is made of high quality copper alloy. This doctor blade is relatively pliable among metal blades, low friction coefficient and is not easy to damage the dryer cylinder and roller. It has good cleaning effect, especially for cleaning Yankee dryer cylinder, paper roller, calender roller, etc.

Stainless Steel Doctor Blade

Stainless steel doctor blade is made of 304/316 material, which has good corrosion resistance, wear resistance, stability and strength, and is suitable for the stone roller and hard rubber roller of the pressing section.