When it comes to the relentless demands of modern mining, every component must be engineered for unwavering strength and durability. The conveyor chain is the lifeline of your operation, and any failure can lead to catastrophic downtime and significant financial loss. While the Cincinnati Mine Machinery Co. DA-434 conveyor chain is a recognized name in the industry, our DA Series is a superior, high-performance alternative that not only meets but exceeds the performance expectations of the original equipment.Our DA Series is meticulously designed as a direct replacement for Cincinnati's DA-434 conveyor chains, offering a seamless transition to a product that provides longer service life, reduced maintenance, and enhanced operational efficiency. We are a global leader in heavy-duty mining chain manufacturing, dedicated to delivering robust chain conveyor solutions for both surface and underground applications. With decades of experience and an unyielding commitment to excellence, we are uniquely positioned to offer a product that represents the pinnacle of quality and reliability in the mining industry.






| Model | Chain Unit Length | Scraper Width | Key Applications |
| DA622A | 12 inches (304.78 mm) | 29 inches (737 mm) | Excavator-Anchor Integrated Machine Transport Chain |
| DA622B | 18 inches (457 mm) | 29 inches (737 mm) | Excavator-Anchor Integrated Machine Transport Chain |
| DA644A | 13 inches (330.2 mm) | 28 inches (711 mm) | Excavator-Anchor Integrated Machine Transport Chain |
| DA646B | 17.95 inches (456 mm) | 29.13 inches (740 mm) | Excavator-anchor Integrated Machine Transport Chain |
| DA642A | 11 inches (279.5 mm) | 27.5 inches (698.5 mm) | Continuous Miner Transport Chain |
| DA711A | 13 inches (330.2 mm) | 28 inches (711 mm) | Continuous Miner Transport Chain |
| DA719A | 13 inches (330.2 mm) | 36.28 inches (921.5 mm) | Continuous Miner Transport Chain |
| DA737A | 13 inches (332 mm) | 28 inches (710 mm) | Continuous Miner Transport Chain |
| DA737B | 19.6 inches (498 mm) | 28 inches (710 mm) | Continuous Miner Transport Chain |
| DA711B | 19.5 inches (495.3 mm) | 22.5 inches (572 mm) | Shuttle Car Scraper Chain |
Our experience is rooted in decades of hands-on manufacturing and a deep understanding of the unique challenges faced in underground mining environments. We don’t just build chains; we engineer solutions that have been proven to enhance productivity, safety, and cost-effectiveness in the most demanding applications.

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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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