
Technology of DMH Company
Our sealing products utilize production equipment and technology sourced from DMH Company in Austria, ensuring precision and durability in harsh mining applications.
| Main Market | North America, Western Europe, Eastern Europe, Eastern Asia, Oceania |
| Business Type | Manufacturer, Trading Company |
| No. of Employees | 300~500 |
| Annual Sales | 60,000,000 - 80,000,000 USD |
| Year Established | 1996 |
| Export % | 30% - 40% |
| Customers Served | 100+ |
Shaanxi Kelong New Material Technology Co., Ltd., founded in 1996, stands as a high-tech enterprise integrating research & development, production, and sales. Our core product lines include combined sealing solutions, high-pressure hydraulic hoses, and longwall chock haulers engineered for the demanding environments of coal mining and metal mining industries. Beyond mining, our innovative products find application in civil aviation, high-speed railway hydraulic and pneumatic systems, wind power, and more.
Leveraging advanced production technologies, including equipment from DMH Company in Austria for sealing products and Italian imports for hydraulic hose manufacturing, our facilities achieve an annual output surpassing 15 million meters of various hydraulic hoses. With over 500 skilled employees and a dedicated independent R&D center, 5.6% of annual revenue is reinvested into research to continually optimize product performance and customization capabilities. Our reach spans Asia, Oceania, Eastern and Western Europe, backed by ISO and IRIS certifications, attesting to our commitment to quality and safety.
Committed to serving the coal mining industry of Indonesia and global enterprises, we combine stringent quality control and technical know-how to ensure our Coal Mine Special Hoses meet the severe operational demands of modern high-speed railway hydraulic and pneumatic systems.

Our sealing products utilize production equipment and technology sourced from DMH Company in Austria, ensuring precision and durability in harsh mining applications.

We operate a fully integrated hydraulic hose production base equipped with state-of-the-art machinery imported from Italy, enabling consistent product quality and technological advancement.
Currently, the company’s total assets have reached 600 million RMB, with an annual output value of approximately 300 million RMB. Our workforce exceeds 400 employees, including nearly 180 engineers and technical staff. Approximately 40% of our team holds college degrees, and R&D personnel account for 17.5% of total staff. Over the last three years, we have invested upwards of 7% of annual revenue into research and development, underlining our strategic focus on innovation.
Positioned within the top three domestic manufacturers in the coal machine sealing industry, we are rapidly advancing in the high-pressure rubber hose and frame-type handling vehicle sectors with ambitions to reach top three positions within two years. Our products hold an 8% share of the domestic market, with continuous innovation driving our competitive edge.
By consistently focusing on technological breakthroughs and improved product quality, we ensure our hoses meet the stringent requirements of high-speed railway hydraulic and pneumatic applications, where safety, longevity, and performance are paramount.
Kelong New Material is a dynamic manufacturer and distributor specialized in sealing solutions. We offer a wide range of both standard and tailor-made products and services across diverse industrial sectors. Our in-house R&D and technology centers enable custom product development aligned with customer specifications and working conditions.
Whether your project requires adaptation for extreme environments or specialized performance, we provide comprehensive technical support and flexible production capabilities to deliver reliable, cost-effective solutions.
Wide-ranging inventory for standard products, enabling prompt delivery and flexible purchase options.
Highly adaptable manufacturing capabilities to meet specific customer demands and custom product variations.
Consistent quality control paired with cost-effective solutions to provide the best value to our customers.
Fast turnaround times for both customized and standard product orders, minimizing downtime and delays.
Products designed with lifecycle and durability in mind, providing long-term reliability and cost savings.
The development of high-speed railways increasingly demands advanced hydraulic and pneumatic systems capable of operating under extreme pressure, vibration, and environmental challenges. Coal Mine Special Hoses are uniquely engineered to fulfill these requirements, offering robust resistance to abrasion, corrosion, and temperature extremes typical in mining and railway infrastructure.
These hoses serve critical functions in:
Looking ahead, innovations such as smart hose technology embedded with sensors for real-time pressure monitoring and health diagnostics are shaping the future. Integration with AI-driven predictive maintenance enhances system reliability, reducing unplanned downtime on rail networks critically reliant on hydraulic and pneumatic subsystems.