Alpha Technology Development Co.Ltd

AT25 Series Surface Continuous Miner Bits (Heavy-duty Body Shank) are available in two configurations—Heavy-duty A Series and Standard B Series—designed for various rock hardness conditions in continuous mining. These continuous miner bits are engineered to overcome the challenges of insufficient impact resistance and difficult tool replacement, significantly improving mining efficiency and equipment utilization.

Product Features:

• A Series Heavy-duty Miner Bits

Reinforced body structure handles extremely high-impact loads, ideal for hard rock continuous mining operations.

• A Series Narrow Shoulder Design

Optimized shoulder geometry enhances impact strength and reduces stress concentration, increasing durability of the surface miner picks.

• B Series Standard Miner Bits

Cost-effective design that balances performance and durability, suitable for medium-hardness rock formations.

• B Series Wide Collar Protection

Broadened protective ring design extends the service life of tool holders and sleeves during continuous mining.

• External Circlip Locking System

Both A and B Series miner bits use an external retention mechanism, allowing fast on-site replacement to minimize machine downtime.

• Standardized Interface Design

Compatible with most mainstream continuous miners, ensuring installation accuracy and interchangeability of all continuous miner bits and surface miner picks.

Specification:

Applications:

• Coal Seam Continuous Mining

Designed for use with roadheaders and continuous miners in coal mines, these continuous miner bits—especially the A Series—are ideal for extracting hard coal seams with high efficiency and durability.

• Limestone Surface Mining

In open-pit mining for cement raw materials, the B Series surface miner picks feature a wide collar that protects equipment and extends service life in abrasive limestone environments.

• Tunnel Boring Operations

Used in subway and highway tunnel construction with TBM machines, the heavy-duty shank structure of the A Series miner bits handles extreme impact loads during rock excavation.

• Rock Quarrying

Ideal for continuous mining in aggregate quarries, the external circlip design allows for quick bit replacement, reducing maintenance costs and downtime associated with surface miner picks.

• Phosphate Mining

Suitable for continuous operations in chemical raw material extraction, the standardized interface ensures compatibility with mainstream equipment, improving productivity with reliable continuous miner bits.