Mining Dumbbell Link Pin
Material: 30CrMnTi
Tolerance: ±0.1 mm
Tooling Cycle: 45 days
Custom Service: Available per your specs
Weight: As per customer drawings
Craft: Forging
Size: Fully compliant with customer drawings
Product Overview:
Our mine dumbbell pins are critical fittings for coal mining systems, extensively fitted on scraper conveyors and transfer units. They are fundamental to maintaining stable equipment performance and seamless material flow in underground mines. As the connecting fasteners for conveyor troughs, dumbbell pins hold all sections firmly together to create a durable conveying track. This structure supports consistent, high-efficiency handling of coal and various bulk materials during production.
Key Benefits:
Mine dumbbell pins serve as essential connecting components for the central trough of coal mine scraper conveyors. Their structural design and superior performance directly determine the equipment’s stability, operational reliability and overall mining efficiency. Featuring high mechanical strength, outstanding wear resistance and precise fitting accuracy, these dumbbell pins deliver solid connecting stability under harsh mining conditions. They support fast assembly and disassembly, offer excellent interchangeability, and maintain great resistance to corrosion and heavy impact loads. By ensuring firm and stable connection between conveyor components, they enable smooth running of the scraper chain, improve the continuity and efficiency of coal conveying, and effectively extend the service life of the entire mining equipment.
Manufacturing Process:
Raw material inspection → Cutting → Forging → Normalizing → Quenched and tempered → Shot peening → Rough turning → Rough milling → MT → CMM/GMM → Cleaning packaging
Packaging & Delivery:
Our professional quality control team implements rigorous inspection and strict quality standards for every order.
Before shipment, all products undergo thorough cleaning, precise marking and professional rust-proof surface treatment to ensure optimal condition during transit. Each item is then subjected to a comprehensive dimensional and visual inspection to guarantee stable performance and premium overall quality. After passing full quality verification, goods are carefully packaged with shockproof, moisture-proof and anti-rust materials. Well-packed products are systematically stored in our standardized warehouse, always kept in stock and ready for immediate arrangement and prompt delivery at any time.
Our Strengths:
We utilize state-of-the-art inspection and testing gear, including imported spectrometers, N-H-O analyzers, Zeiss metallurgical microscopes, CMMs and M2M ultrasonic phased array flaw detectors. Our in-house lab can conduct a full scope of tests: chemical analysis, mechanical property testing, dimensional & geometric tolerance verification, plus non-destructive testing. From raw material receipt to final shipment, we maintain tight quality control at every stage. All batches go through strict lab assessment and in-process surveillance. Our products feature stable material performance, tight dimensional tolerances and no internal defects. We deliver reliable forgings and machine components to customers across the globe.
