Yan'an Coal Mine Achieves Major Breakthrough with MG300-700-BWD Unmanned Mining in 0.6m Ultra-Thin Seam

December 2024 - Dalian Yuda Thin Coal Machinery Manufacturing Co., Ltd. announced a major breakthrough with its MG300-700-BWD ultra-thin seam bridge shearer in the Yan'an Coal Mine 0.6m ultra-thin seam unmanned mining project. The project successfully achieved monthly output over 60,000 tons, zero safety incidents, 44.44% maintenance efficiency improvement, and 12 consecutive months of fault-free operation.

2024年12月，大连渝达薄煤机械制造有限公司宣布，其MG300-700-BWD极薄煤层过桥采煤机在延安煤矿0.6米极限极薄煤层无人化开采项目中取得重大突破。该项目成功实现单月产量超6万吨，安全事故零发生，维护效率提升44.44%，并已连续12个月无故障运行。

The Yan'an mining area has a minimum seam thickness of only 0.6m, where traditional shearers cannot enter, creating extremely limited space and high safety risks. Dalian Yuda's R&D team customized the MG300-700-BWD ultra-thin seam bridge shearer for this project, equipped with millimeter-level encoder positioning and remote automated control system, successfully achieving unmanned mining and thoroughly solving the space limitation and safety risk issues.

延安矿区煤层最薄处仅0.6米，传统采煤机无法进入，空间极度受限导致安全风险极高。大连渝达研发团队为该项目定制MG300-700-BWD极薄煤层过桥采煤机，搭载毫米级编码定位器与远程自动化控制系统，成功实现无人化开采，彻底解决了空间受限和安全风险问题。

In addition to unmanned mining capability, the equipment also possesses f8 hardness rock adaptability. The Yan'an mining area has complex coal rock structure containing large amounts of f8 hardness hard gangue. The customer's previous equipment suffered frequent cutting tooth breakage and gearbox damage when encountering high-hardness coal rock, resulting in high maintenance costs. Dalian Yuda employed military-grade cutting unit with double spiral drum, providing ultra-strong cutting capability specifically designed for f8 hardness coal rock with stable operation in high-hardness conditions.

除无人化开采能力外，该设备还具备f8硬度煤岩适应能力。延安矿区煤岩结构复杂，内部夹杂大量普氏硬度f8的坚硬矸石，客户此前使用的设备在遭遇高硬度煤岩时，截齿断裂、齿轮箱损坏等故障频发，停机维修成本高。大连渝达采用军工级别截割部配置双螺旋滚筒，具备超强截割能力，专为f8硬度煤岩设计，在高硬度条件下稳定运行。

The project achieved remarkable results: 12 consecutive months zero gearbox failure record, high-hardness cutting tooth lifespan 1.5x above competitors, and client achieved ROI in 6 months after deployment. Additionally, MG300-700-BWD's multi-mineral mining capability (copper, potash, iron) was also practically verified, demonstrating the equipment's broad applicability and reliability.

项目成果显著：连续12个月零爆箱记录，高硬度截齿使用寿命是竞品的1.5倍以上，客户在设备投产后6个月收回投资成本。此外，MG300-700-BWD的多矿种开采能力（铜矿、钾矿、铁矿）也得到实际验证，展现出该设备的广泛适用性和可靠性。

Dalian Yuda's technical director stated: "The successful application of MG300-700-BWD proves our technical strength in the ultra-thin seam mining equipment field. The two core technologies of unmanned mining and high-hardness rock adaptability provide new solutions for global ultra-thin seam mining."

大连渝达技术负责人表示："MG300-700-BWD的成功应用，证明了我们在极薄煤层采煤设备领域的技术实力。无人化开采和高硬度煤岩适应这两大核心技术，为全球极薄煤层开采提供了新的解决方案。"

The Yan'an Coal Mine project leader spoke highly of the equipment's performance: "MG300-700-BWD completely met our needs, not only solving the 0.6m ultra-thin seam mining challenge but also significantly improving production efficiency and safety. The equipment's stability and durability exceeded expectations, making it our best choice for cooperation."

延安煤矿项目负责人对设备表现给予了高度评价："MG300-700-BWD完全满足了我们的需求，不仅解决了0.6米极薄煤层开采难题，还大幅提高了生产效率和安全性。设备的稳定性和耐用性超出预期，是我们合作的最佳选择。"