Dual shaft shredder blade material is a core component in solid waste treatment and resource recovery systems. It critically affects shredding efficiency, service life, operational reliability, and total cost of ownership. Four principal blade materials are widely adopted in industry today. Selection depends on waste composition, processing intensity, and operational needs. SKD11 is a high-carbon, high-chromium cold-work tool steel. It is the most prevalent choice for general-purpose applications. With a hardness of HRC 58–60 and moderate toughness, it reliably handles medium- to low-hardness materials. These include plastics, rubber, paper, and light composites. SKD11 is cost-effective, and heat treatment and machining protocols are well established. Maintenance requirements are low. This material is suitable for small- to medium-scale recycling under standard duty cycles. H13 is a chromium–molybdenum–vanadium hot-work tool steel. Compared to other hot-work tool steels, H13 offers superior thermal stability, high hardenability, and strong resistance to thermal fatigue and cracking. H13 keeps its strength and hardness even at high temperatures. Its wear resistance and toughness are well balanced due to the higher carbon and vanadium content. H13 is recommended for shredding tough solid waste, like metal waste or waste containing metal. NM550 (HBW 550) is an abrasion-resistant structural steel. It combines high toughness (impact energy: 30–40 J) with exceptional wear resistance (roughly HRC 55). Its microstructure lessens the risk of chipping and edge fracture. This increases robustness when handling impurity-heavy waste, such as construction debris, mixed municipal waste, or contaminated wood. NM550 improves fault tolerance and reduces downtime from foreign objects. It is well-suited for variable or poorly sorted feed. Material selection must be tailored to the feedstock and operational parameters. SKD11 is best for consistent, low-abrasion processing. Use DC53 for high-strength, high-cycle needs. Prefer H13 when thermal stress or metal content is high. Choose NM550 for very variable, impurity-rich waste streams. Matching materials to needs optimizes operations and lowers lifecycle costs.

The double shaft structure allows the material to be torn and sheared in two directions, with fast processing speed and uniform shredding effect, which is suitable for large and hard materials.The blades are generally multi-claw or tooth-shaped, and the blades on the two shafts interlock and work, with strong tearing force, which can easily break metal, plastic, rubber, wood, etc. The shredder blades are mostly made of high-strength alloy steel or special heat-treated materials, with high hardness, and have good toughness, impact resistance, and are not easy to break. 

The double shaft structure allows the material to be torn and sheared in two directions, with fast processing speed and uniform shredding effect, which is suitable for large and hard materials.The blades are generally multi-claw or tooth-shaped, and the blades on the two shafts interlock and work, with strong tearing force, which can easily break metal, plastic, rubber, wood, etc. The double shaft shredder blades are mostly made of high-strength alloy steel or special heat-treated materials, with high hardness, and have good toughness, impact resistance, and are not easy to break.

Lichun is the first solar term in the traditional Chinese twenty-four solar terms, marking the beginning of spring. Lichun usually falls on February 4th or 5th each year, symbolizing the end of the cold winter and the revival of all living things. During Lichun, temperatures begin to rise, and sunlight shines through the thin mist onto the earth, welcoming the arrival of spring. Farmers start to get busy, preparing for spring sowing. At this time, trees sprout new buds, and flowers quietly bloom, as if nature itself awakens overnight. There are many interesting folk customs associated with Lichun, such as eating spring pancakes, biting spring, and hitting the spring ox, all of which symbolize wishes for favorable weather and a bountiful harvest throughout the year. Through these activities, people express their hopes and good wishes for the new year. At last，Licheng wishes everyone health and well-being on the Lichun！

On January 26, the eighth day of the twelfth lunar month, various parts of China welcomed the traditional Laba Festival. From the ancient temples offering porridge and blessings to the city commercial districts' intangible cultural heritage performances, from community civility practices to charitable markets spreading love, bowls of warm Laba porridge connect traditional culture with modern life, bringing a unique vitality to this festival that carries the meaning of praying for blessings and good fortune through innovative expressions. LICHENG wishing that every journey has a destination, and every care reaches its place. May those far away return home soon, sitting around the table with their loved ones, sharing the warmth of porridge; may families who stay together chat leisurely, capturing moments of reunion in the cozy daily life; may every household, amidst the warm atmosphere of the Laba Festival, find peace and joy, and gather strength to welcome the New Year.If you have any needs regarding of slitting knife，doctor blades, please contact us.

A slitting knife is an industrial cutting tool specifically used to cut large sheet materials into narrow strips. Its working principle involves the precision cutting of materials by a high-speed rotating blade and is commonly used for processing materials such as film, paper, metal strips, and plastic film. The cutting method of a slitting knife generally uses rotary cutting, which offers higher precision and efficiency compared to traditional straight knife cutting methods. The working principle of a slitting knife mainly relies on the relative motion between the blade and the material. As the material passes through the blade, the rotating blade quickly makes contact with it, generating strong shearing forces that precisely cut the material to the desired width. To ensure cutting accuracy, slitting knives are usually equipped with high-precision adjustment systems, allowing the blade spacing and angle to be adjusted according to different cutting requirements. In practical applications, slitting knives are widely used in printing, packaging, paper processing, metal strip slitting, and other fields. For example, in paper processing, a slitting knife can cut large sheets of paper into rolls of different widths to meet various production needs. In metal processing, slitting knives are used to cut wide metal strips into narrower strips for subsequent processing. In addition to their efficient and precise cutting capabilities, the design of slitting knives also emphasizes durability and ease of maintenance. With technological advancements, new types of slitting knives have made significant progress in blade materials and coating technologies, and innovative blade structures have further improved cutting performance and service life.

In today's fast-paced manufacturing world, cutting precision, durability, and efficiency are more important than ever. Industrial teeth knives, widely used in packaging, food processing, rubber, and plastic industries, are undergoing a technological transformation — setting a new standard for performance and reliability. The latest generation of teeth knives is engineered with advanced materials such as high-speed steel, tungsten carbide, and stainless alloys. These materials provide superior hardness, longer wear life, and resistance to corrosion, even under continuous high-speed operation. The upgraded tooth geometry ensures cleaner cuts, reduced material waste, and minimal machine downtime, which translates to cost savings and improved productivity for manufacturers. Furthermore, the integration of CNC grinding and precision heat treatment techniques has greatly improved the uniformity and sharpness of each tooth. This not only enhances the overall cutting quality but also reduces the risk of blade breakage and uneven wear. Some manufacturers are even incorporating coating technologies — such as TiN or TiAlN — to further extend blade life in demanding environments. Sustainability is also becoming a key focus. Re-sharpenable and recyclable designs are helping industries reduce their environmental impact while maintaining high cutting standards. As industries continue to demand higher performance and lower operational costs, the modern teeth knife is quickly becoming an essential tool. With ongoing innovations and quality improvements, it’s clear that the new standard for industrial teeth knives is already shaping the future of precision cutting.

New Year's Day, as the beginning of a new year, carries the hopes and blessings of countless people for the future. Every January 1, people around the world celebrate this holiday, which symbolizes renewal and hope, in different ways. For many, New Year's Day is a time to reflect on the past and look forward to the future, as well as a great opportunity for family reunions and gatherings with friends. New Year's Day is not just a day to bid farewell to the old and welcome the new; it is also a moment for us to reassess ourselves and set new goals. Whether it's deciding to improve our lifestyle or pursuing personal dreams, New Year's Day provides everyone with a fresh start. Wishing each other 'Happy New Year' is not only an expression of good wishes but also a way to send blessings for each other's future, spreading positive energy. At this moment, the fireworks and countdown clocks ringing through the streets symbolize the arrival of the new year. People may be busy in their daily lives, but at this moment, all worries and pressures seem to be set aside, leaving only laughter and hope. The meaning of New Year's Day lies in planting seeds of hope in people's hearts, encouraging us to pursue our dreams more bravely and to face life's challenges with courage in the coming year. Licheng wishes everyone success, good health, family harmony, and career advancement in the new year. Happy New Year!If you need slitting knife，paper industrial knife and so on, please contact us.