Tunnel excavation, and road milling and planing projects, the wear resistance of cutting teeth directly affects equipment efficiency and construction costs. Traditional tungsten carbide cutters are prone to rapid wear, blade breakage, and even U-turns in high quartz sandstone, hard rock, or highly abrasive formations, resulting in frequent equipment shutdowns.
As a professional manufacturer of polycrystalline diamond composite mining cutting tools in China, Henan Deqin New Materials Co., Ltd. (DQDIAMOND) provides advanced PCD cutting picks for hard rock excavation and underground mining applications. delivering solutions for global tunneling and mining projects.
What is PCD cutting tooth?
PCD (Polycrystalline Diamond) is a material made of polycrystalline diamond, which has a much higher hardness than ordinary tungsten
carbide. DQDIAMOND combines polycrystalline diamond with high-strength tungsten carbide matrix, making the cutting teeth have both wear resistance and impact resistance, especially suitable for. especially suitable for demanding underground mining conditions.
|
Product Type |
Conventional Carbide Picks |
DQDIAMOND PCD Cutting Picks |
|
Service Life |
1x |
8–10x Longer |
|
Wear Resistance |
Standard |
Extremely High |
|
Replacement Frequency |
Frequent |
Significantly Reduced |
|
Suitable Conditions |
Medium-hard Rock |
Highly Abrasive Hard Rock (quartz sandstone, granite formations) |
In actual coal mine comprehensive mining condition testing, the average working life of traditional cutting teeth is about 20 hours, while DQDIAMOND PCD cutting teeth can operate stably for more than 160 hours in high quartz content rock formations above 40–50%, greatly reducing downtime in underground mining operations.
The core technological advantages of DQDIAMOND
DQDIAMOND adopts multi-layer composite PCD technology and designs various blade structures according to different rock layers, including dome shaped, spherical, and elliptical blade structures, which can effectively reduce impact stress and improve rock breaking efficiency.
These designs make the product highly suitable for tunneling machine cutting teeth, roadheader cutter bits, and rotary drilling cutting tools for hard rock excavation.
The company adopts:
• Vacuum brazed PCD cutters technology
• Ultra coarse grain tungsten carabide matrix
• High strength heat-treated steel tooth body
• Ultrasonic non-destructive testing
These processes ensure each long life PCD cutting pick for hard rock mining applications maintains stable performance under complex working conditions.
Actual engineering application data
|
Application |
Rock Type |
Conventional Pick Life |
PCD Pick Life |
|
Coal Mining |
Quartz Sandstone (UCS 80–120 MPa) |
20 Hours |
160 Hours |
|
Tunnel Excavation |
Granite |
15 Hours |
120 Hours |
|
Road Milling |
Asphalt Pavement |
25 km |
180 km |
Field data from underground mining projects in Asia shows that after using DQDIAMOND PCD cutting teeth:
- Reduce the frequency of tool changes by about 80%
- The cost of manual maintenance has decreased by 60%
- Increase excavation efficiency by over 30% in continuous mining operations
Compatible with international mainstream device models
DQDIAMOND PCD cutting teeth can directly replace international brand models without the need to modify the tooth seat, making it suitable for OEM mining cutting tools supplier requirements worldwide.
|
Compatible Brand |
Replacement Models |
|
Kennametal |
C31, C21, CM42 |
|
Betek |
B47K19, B47K25-F |
|
Standard U Series |
U82, U84, U95 |
The product is widely used in:
Continuous mining machines,Tunneling machines,Shield tunneling machines,Road milling machines,Rotary drilling machines
With the development of the mining industry towards intelligence and high efficiency, PCD cutters with long lifespan and high stability are gradually replacing traditional tungsten carabide cutting tools. Henan Deqin New Materials Co., Ltd. continues to provide more reliable China mining cutting tools factory direct supply solutions, especially for hard rock excavation and high abrasive geological conditions worldwide.
FAQ
Q: What are PCD cutting picks used for?
A: PCD cutting picks are mainly used for underground mining, tunnel excavation, road milling, and hard rock drilling applications. They are designed for highly abrasive rock formations such as quartz sandstone and granite, helping improve cutting efficiency and reduce downtime.
Q: Why are DQDIAMOND PCD cutting picks better than traditional carbide picks?
A: DQDIAMOND PCD cutting picks use polycrystalline diamond composite technology, which provides significantly higher wear resistance and longer service life than traditional tungsten carbide picks. In many mining projects, the service life can reach 8–10 times longer than standard carbide tools.
Q: How long do DQDIAMOND PCD cutting picks last in hard rock conditions?
A: Field testing shows that traditional cutting teeth usually work for about 20 hours in high quartz rock formations, while DQDIAMOND PCD cutting picks can operate continuously for more than 160 hours under the same conditions.
Q: Which machines are compatible with DQDIAMOND PCD cutting picks?
A: DQDIAMOND PCD cutting picks are compatible with many international mainstream models, including Kennametal C31/C21/CM42, Betek B47K19/B47K25-F, and standard U series models such as U82, U84, and U95. They can directly replace original cutting tools without modifying the tooth holder.
Q: What are the main advantages of DQDIAMOND PCD cutting picks?
A: The main advantages include ultra-high wear resistance, reduced replacement frequency, lower maintenance costs, improved excavation efficiency, and stable performance in hard rock mining conditions. These features make them ideal for continuous mining and tunneling projects worldwide.
