In coal mining, cutting pick failures are frequently encountered, including alloy breakage, shank breakage, and wear. The main reasons are insufficient bending strength, poor wear resistance and fatigue resistance of the alloy, and unprofessional use of steel materials and processing techniques.
Many coal mines prioritize price when purchasing cutting picks, leading to the purchase of inferior products, significantly reducing work efficiency and even creating safety hazards.
Today, let's look at how to choose coal cutting picks with longer service life, higher cutting efficiency, better hardness and wear resistance, and higher cost-effectiveness.
What factors should be considered when selecting coal cutting picks?
- Coal Mine Operating Conditions: my country has a vast territory, and the hardness, thickness, and coal-rock conditions of coal seams vary from region to region, resulting in diverse mining conditions. Therefore, the selection of cutting picks should be based on matching different models to different conditions.
- Factors Affecting Coal Cutting Pick Quality: Many cutting pick manufacturers exist on the market, but their quality varies greatly. Common problems with ordinary cutting picks include broken shanks, poor wear resistance, and alloy head loss. This directly leads to frequent pick replacements, reduced work efficiency, and even potential safety hazards.
- Factors Affecting Coal Mining Machine Model: Inappropriate matching of cutting picks to different coal mining machine models can cause low work efficiency and machine damage. Therefore, strict quality control is crucial when selecting cutting picks.
How to Select Suitable Coal Cutting Picks?
Different Coal Mine Working Conditions Require Different Cutting Picks
First, the working conditions of the coal mine should be fully understood. If the coal seam is hard and has a high rock content, cutting picks with relatively large alloy heads should be selected.
For soft rock, cutting picks with smaller alloy heads and smaller models can be selected to improve coal mining efficiency.
If the coal and rock are well-developed and have fissures, cutting picks with wear-resistant layers can be considered to extend service life and reduce ineffective actions such as frequent pick replacements.
Don't just look at the price; look at the cost-effectiveness.
The quality of cutting picks directly determines mining efficiency and safety, while price affects mining costs. Therefore, choose cutting picks with a high cost-effectiveness ratio. High-quality coal cutting picks are generally very particular about material selection and manufacturing processes.
Consider the alloy head material.
To maximize the effectiveness of cutting picks, the most crucial factor is the quality of the alloy head. Leading brands typically focus their technical strength on the research and development of alloy heads and wear-resistant materials, using imported raw materials and customizing alloy formulas based on rock formation characteristics. This ensures both strength and hardness of the cutting pick.
Zhuzhou, Hunan, is Asia's largest cemented carbide production base with a complete alloy industry supply chain. The founder of Zhuzhou Xinda Cutting Picks has over 20 years of experience in alloy material production and R&D, ensuring superior alloy quality. This is an important factor to consider when purchasing.
Examine the Cutting Tooth Machining Process
First, examine the alloy head design. Ordinary manufacturers use conical alloy heads, while those with a truncated bevel design offer higher mining efficiency but also place greater demands on alloy quality. Manufacturers daring to use truncated bevel designs generally possess superior alloy quality.
Second, examine the welding process. Inquire about the weld fill in the alloy head area. Higher fill indicates a more robust alloy head, less prone to falling off.
Third, examine the tooth body machining process. Understand whether the tooth body is made of high-quality steel and pay attention to the heat treatment process. Currently, international brands use cold forging to ensure the internal structure of the tooth body remains unchanged, minimizing the risk of shank breakage.
Xinda Cutting Teeth benchmarks against leading international companies, demonstrating meticulous craftsmanship in raw material selection and process design, fully guaranteeing product quality and making it the "most cost-effective" cutting tooth in the industry.
Examine the Wear-Resistant Technology
- Ultra-Wear-Resistant Protective Layer
- Plasma Clad Weld Protective Layer
The wear-resistant layer ensures that the alloy head and tooth body wear synchronously, protecting the alloy head and extending the cutting tooth's service life. For coal mines with abundant coal and rock formations and numerous faults, products with wear-resistant coatings can be selected based on the mine's development. However, it's equally important to understand the material quality and processing technology.
Zhuzhou Xinda Cutting Picks is a leading domestic brand. Its wear-resistant performance is remarkable for various rock types and working conditions, demonstrating excellent performance in numerous field tests and comparisons across multiple locations. The company's ultra-wear-resistant products, in particular, excel in drilling through hard and ultra-hard rocks.
Matching Cutting Picks to Coal Mining Machine Models
Coal Mining Machine Cutting Pick Models
The model of the coal mining machine cutting picks must match the equipment. Only a suitable model can ensure the picks perform optimally. Before purchasing cutting picks, companies must understand the model of the coal mining machine, especially the size of the tooth base and tooth sleeve, to select the appropriate cutting picks.
Coal Mine Roadway Excavation Equipment Performance
When selecting cutting pick models for coal mine roadway excavation machines, it is crucial to ensure a high degree of matching between the equipment performance and the cutting picks. The higher the power of the equipment, the larger the cutting tooth model should be selected; otherwise, the machine may be damaged or its efficiency may not be fully utilized. Therefore, the selection of the cutting tooth model must be done carefully.
