Coal interceptor teeth shopping guide to avoid the pit, be sure to collect!

2023-11-07 15:09:32

Coal mining, often encountered in the coal interceptor alloy cracking, broken shank and wear and other phenomena such as interceptor failure, the main reason is that the alloy's bending strength is not enough, alloy wear resistance and fatigue resistance is poor, the tooth body steel materials and processing technology is not professional and other reasons.

　　Many coal mines in the purchase of teeth, only look at the price, resulting in the purchase of poor-quality products, greatly reducing the efficiency of the work, and even cause safety hazards.

　　Today, let's see how to choose a longer service life, higher cutting efficiency, better hardness and wear resistance, more cost-effective coal interceptor.

　　01What are the factors to be considered in the selection of coal cut-off teeth?

　　Coal mining conditions

　　China's vast territory, coal mine coal seam hardness, thickness, coal rock conditions vary from place to place, which leads to different coal mining conditions. Therefore, in the selection of cut-off teeth, different types of cut-off teeth should be matched according to different conditions.

　　Coal cut-off tooth quality factors

　　There are many manufacturers of interceptor teeth on the market, but the quality is uneven, the most common problems of common interceptor teeth are broken shank, wear resistance, alloy head falling and other quality problems, which directly leads to frequent replacement of teeth, reducing work efficiency, and may even cause personnel safety issues.

　　Coal mining machine model factors

　　If different models of coal mining machine are not suitable in matching the interceptor teeth, it will cause low working efficiency, machine damage and other problems, therefore, the selection of interceptor teeth should be strictly controlled.

　　02How to choose and buy suitable coal cut-off teeth?

　　Different cutting teeth for different coal mine working conditions

　　First of all, we should fully grasp the working conditions of coal mines, if the coal seam has high hardness and high content of coal rock, then we should choose the cut-off teeth with relatively large alloy head.

　　For soft rock, you can choose smaller alloy head, smaller type of cut-off teeth to improve the efficiency of coal mining.

　　If the coal rock is well-developed and has fissures, you can consider choosing the cut-off teeth with wear-resistant layer to improve the service life and reduce the ineffective action of frequent tooth replacement.

　　Don't just look at the price, look at the cost-effective

　　The quality of cut-off teeth directly determines the mining efficiency and safety, while the price affects the mining cost, therefore, choose the cut-off teeth with high cost performance. Good quality coal teeth are generally very careful in the selection of materials, production process.

　　Look at the alloy head material

　　To maximise the effectiveness of the teeth, the most critical to look at the quality of the alloy head, the technical force of the first-tier brands, generally focus on the research and development of the alloy head and wear-resistant materials, will use imported raw materials, but also according to the traits of the rock formation, independently customised alloy formulations, not only to ensure that the strength of the teeth, but also to take into account the hardness.

　　Hunan Zhuzhou is Asia's largest cemented carbide production base, there is a perfect alloy industry supply chain, Zhuzhou Xinda interceptor founder in the field of alloy materials have more than 20 years of production, R & D experience, alloy quality, you can focus on this point in the purchase.

　　Look at the cutting teeth processing technology

　　A look at the alloy head design process, ordinary manufacturers of interceptor alloy head for cone design, alloy head with prismatic design of higher extraction efficiency, but at the same time more test of alloy quality, dare to do prismatic design manufacturers, alloy quality is also quite hard.

　　Second look at the teeth welding process, ask the manufacturers of alloy head parts of the welding filling degree, the higher the filling degree of the teeth, the alloy head is more solid, will not easily fall off.

　　Three look at the tooth body processing technology, on the one hand, to understand clearly whether the tooth body selection of better steel, but also pay attention to the heat treatment process, the current international brand products are used in the cold forging process, to ensure that the internal organisational structure of the tooth body does not change, the maximum degree of prevention of tooth shank fracture.

　　Cinda gears against the international head enterprises, in the choice of raw materials and process design ingenuity, fully guarantee the quality of the product, is the industry's "most cost-effective" gears.

Wear-resistant technology

Super wear-resistant protective layer  

Plasma cladding protective layer

　　The wear-resistant layer can ensure the synchronous wear of alloy head and tooth body, protect the alloy head and prolong the service life of the cut-off teeth.

　　For coal mines with more coal rocks and faults, according to the development of coal mines, we can choose the products with wear-resistant layer, but we also need to understand the quality of materials and processing technology.

　　Zhuzhou Xinda gear is the head brand in China, for all kinds of rocks and working conditions, wear-resistant effect is very significant, in many places several field test comparison performance, in which the company's super wear-resistant products in the hard rock and ultra-hard rock drilling performance is particularly outstanding.

　　Matching cut-off teeth according to coal miner model

　　Coal Mining Machine Cut-off Teeth Model

　　The model of interceptor teeth of coal mining machine should be the same as the equipment, only the suitable model can play the role of interceptor teeth. Enterprises in the purchase of interceptor teeth, must understand the model of coal mining equipment, especially to understand the tooth seat, tooth sleeve model size, so as to select the appropriate interceptor teeth.

　　Coal mine roadheading equipment