Cutting teeth 47-19 straight column type high hardness wear-resistant layer coal mining machine excavator accessories

Description :

  The cutting tooth 47-19 is a core cutting tool designed specifically for heavy-duty mining machinery such as coal mining machines and tunneling machines. This model belongs to the straight column structure, mainly solving the problems of fast tool wear and high fracture rate in complex geological conditions such as hard rock, semi coal rock, and containing gangue. By optimizing the bonding process between the alloy head and the tooth body, stable cutting efficiency can be maintained under high impact loads, making it suitable for longwall coal mining faces and roadway excavation operations. It is a key vulnerable component to ensure coal mine safety production and mining efficiency.

  The cutting teeth 47-19 are made of high-quality alloy steel as the base material, and undergo precise heat treatment to give the tooth body extremely high toughness and bending strength. The top of it is embedded with a hard alloy blade, and the wear-resistant layer has undergone special strengthening treatment, significantly improving the wear resistance of abrasive particles. The straight column design strictly controls the installation fit tolerance within the standard range, ensuring a tight fit with the tooth seat and preventing loosening and detachment. The product complies with industry standards for mining machinery accessories, with stable dimensional accuracy and the ability to adapt to high-intensity continuous operating environments, ensuring consistency between batches.

  When selecting, it is necessary to match the cutting teeth 47-19 according to the specific model and drum parameters of the coal mining machine or tunneling machine. The straight column structure is suitable for most standard tooth seats. If the equipment uses snap spring or threaded fixing methods, it is necessary to confirm whether the diameter and length of the tooth handle match. For extremely hard rock conditions, it is recommended to pay attention to the particle size and cobalt content indicators of the alloy head; If there are many pyrite nodules in the coal seam, priority should be given to selecting batches with stronger impact toughness. Unlike conical cutters, the straight column type focuses more on uniform axial force and is not suitable for special working conditions that require significant changes in cutting angle.

  Before installing the cutting teeth 47-19, it is necessary to clean the coal powder and rust inside the tooth seat, apply an appropriate amount of lubricating grease to reduce installation resistance and prevent rusting and biting. In daily maintenance, the wear of the cutting teeth should be regularly checked. When the alloy head is worn to be flush with the tooth body or has missing corners or cracks, it must be replaced immediately to avoid damaging the tooth seat or causing uneven wear of the drum. It is recommended to establish a regular inspection system, record the service life of each cutting tooth, analyze the causes of abnormal wear, and if there is uneven wear, it may indicate that there is a problem with the parameters of the drum spiral. It is necessary to adjust the equipment parameters in a timely manner to extend the service life of the accessories.

AfterSalesService :