Technology of DMH Company
The sealing products utilize state-of-the-art equipment and production technology from DMH Company, Austria, ensuring reliable and durable sealing solutions crucial for hydraulic systems in mining machinery.
| Main Market | North America, Western Europe, Eastern Europe, Eastern Asia, Oceania, and increasingly Central Asia |
| Business Type | Manufacturer, Trading Company |
| No. of Employees | 300~500 |
| Annual Sales | 60,000,000 - 80,000,000 USD |
| Year Established | 1996 |
| Export p.c | 30% - 40% |
| Customers Served | 100+ |

Shaanxi Kelong New Material Technology Co., Ltd., founded in 1996, is a leading high-tech enterprise integrating research, development, production, and sales of advanced sealing products, high-pressure hydraulic hoses, and longwall chock haulers. While their products primarily serve coal and metal mining industries worldwide, the company is expanding its presence in emerging mining markets such as Kazakhstan. The technological foundation includes the adoption of Austrian DMH sealing technology and Italian equipment for hydraulic hose production, guaranteeing top-notch quality.
In Kazakhstan, rich in mineral resources including coal, metals, and uranium, there's an increasing emphasis on modernizing underground mining operations. Longwall Chock Carriers are critical for safe and efficient extraction in this region’s extensive coal basins, like the Karaganda and Ekibastuz coalfields, as well as growing metallurgical mining zones. The rugged terrain and varying geological conditions make reliable hydraulic support vehicles indispensable for operational continuity and worker safety.
Kazakhstan’s mining industry is undergoing technological transformation driven by government economic development strategies focusing on sustainable mining, improved safety standards, and automation. This creates growing demand for advanced equipment such as Longwall Chock Carriers that can provide higher efficiency, reduced downtime, and enhanced safety — attributes emphasized by Shaanxi Kelong's innovations.
Furthermore, local mining enterprises in Kazakhstan benefit from the company’s OEM/ODM services, enabling tailored hydraulic solutions and specialized carriers adapted for Kazakh mining sites’ unique needs. Utilizing these localized solutions supports increased productivity while conforming to evolving industrial regulations and reduces operational costs.
Looking forward, the Kazakh mining sector is likely to invest more in automation and AI-powered monitoring integrated with hydraulic carrier technology, positioning Longwall Chock Carriers as key equipment in the next-generation intelligent mining operations.








We take scientific and technological innovation seriously, elevating the technological content of our products to remain industry leaders. We eagerly anticipate collaborating with Kazakhstani mining enterprises and importers to drive advance in longwall mining technology.
The sealing products utilize state-of-the-art equipment and production technology from DMH Company, Austria, ensuring reliable and durable sealing solutions crucial for hydraulic systems in mining machinery.
The hydraulic hose production base is equipped with a full suite of advanced machinery imported from Italy, allowing for high precision and consistency in manufacturing critical components for longwall chock carriers.
Currently, the company possesses total assets of approximately 600 million RMB and achieves an annual output value of 300 million RMB. Employing over 400 personnel, with nearly 180 engineers and technicians, it is a top-tier player in the domestic coal machine sealing industry, ranking among the top three.
With over 40% of staff holding college degrees, and an enterprise R&D team accounting for 17.5%, the company invests heavily in innovation, dedicating more than 7% of annual revenue to research and development over the past three years.
Its high-pressure rubber hoses and frame-type handling vehicles are on a fast track to join the top three market leaders within two years. The company’s products currently cover 8% of the domestic market, continuously increasing through technological breakthroughs and superior quality with competitive pricing.
The focus remains steadfast on technological innovation to ensure product excellence and maintain leadership in fast-evolving industrial sectors, including expanding markets like Kazakhstan’s mining industry. The company welcomes partners to visit and collaborate to create a brilliant future together.
Kelong New Material is a dynamic manufacturer and distributor of sealing solutions, supplying a wide range of standard and customized products and services across diverse industries. We maintain our own R&D and technology centers, capable of customizing products tailored to client specifications.