Precision-engineered hydraulic components designed for extreme industrial environments — trusted by mining, construction, and energy sectors worldwide.
Shaanxi Kelong New Materials Technology Co., Ltd. was founded in 1996, growing from Xianyang Kelong Rubber Products Institute into a nationally recognized technology innovation enterprise. With over 28 years of accumulated expertise, we integrate R&D, production, and global sales under one roof.
We specialize in hydraulic seal sets, high-pressure hoses, coal mine auxiliary transportation equipment — including hydraulic support carriers — as well as equipment repair and technological services. Our products are widely applied across coal mining, civil aviation, high-speed railways, engineering machinery, wind power, and more. The company holds a top-three position in the domestic coal machine sealing industry, and our high-pressure rubber hoses and frame-type handling vehicles are rapidly advancing toward the same ranking.
Our main products command an 8% share in the domestic Chinese market, while our export footprint continues to expand across Southeast Asia, the Middle East, and Europe — with Hanoi and Vietnam emerging as a key growth corridor for hydraulic support carrier exports.




Hanoi, as Vietnam's industrial and political capital, stands at the center of the country's rapidly expanding manufacturing and mining sectors. The demand for hydraulic support carriers and related hydraulic components has surged in recent years, driven by infrastructure modernization, coal mining expansion in Quang Ninh Province, and the growth of heavy construction projects throughout the Red River Delta region.
Vietnam's GDP has maintained strong growth above 6% annually, with the industrial sector accounting for over 33% of the national economy. The Hanoi metropolitan area hosts hundreds of manufacturing plants, engineering firms, and mining-related enterprises that rely on hydraulic support systems for safe and efficient operations. According to industry estimates, Vietnam's hydraulic equipment market is expected to grow at a CAGR of over 7% through 2030, creating enormous opportunities for exporters of hydraulic support carriers, seals, and hoses. Kelong New Materials is strategically positioned to serve this demand through competitive pricing, certified quality, and a robust export logistics network.
Vietnam's largest coal mining region relies heavily on hydraulic support carriers for underground roof support systems, longwall mining operations, and powered support transport — all critical applications for Kelong's product range.
Hanoi's rapid urban expansion — including metro lines, expressways, and industrial parks — demands hydraulic carriers for tunnel boring machines (TBM), cranes, and heavy earthmoving equipment on a daily basis.
Vietnam's aggressive renewable energy targets have spurred wind farm construction across coastal and highland regions. Hydraulic support systems and high-pressure hoses are essential for turbine installation and maintenance operations.
Hanoi's expanding metro network and national high-speed railway projects require certified hydraulic hoses and sealing components that meet IRIS railway standards — a key certification held by Kelong products.
Industrial zones around Hanoi such as Thang Long, Noi Bai, and Que Vo host automotive, electronics, and steel manufacturers that utilize hydraulic guide rings and piston seals in their press and stamping equipment.
Vietnam's offshore oil and gas platforms in the South China Sea require corrosion-resistant, high-pressure hydraulic hoses and carrier systems capable of withstanding harsh marine environments — a specialty of Kelong's product line.
The hydraulic support carrier industry is undergoing a significant transformation, shaped by digitalization, sustainability mandates, and evolving end-user requirements across Asia-Pacific markets.
Integration of IoT sensors and real-time monitoring into hydraulic support carriers is becoming standard in modern mining and construction operations. Predictive maintenance capabilities reduce downtime by up to 40%, driving adoption of smart-compatible hydraulic components.
Growing environmental regulations in Vietnam and across ASEAN are accelerating the shift toward biodegradable hydraulic oils. Kelong's DIN EN853 1SN hoses are specifically engineered for compatibility with biodegradable fluids, aligning with this green transition.
Post-pandemic supply chain disruptions have prompted Vietnamese industrial buyers to diversify sourcing. Direct export relationships with certified Chinese manufacturers like Kelong offer a reliable, cost-effective alternative to European or Japanese suppliers.
As mining depths increase and construction machinery becomes more powerful, the demand for ultra-high-pressure hydraulic hoses and carriers — operating above 400 bar — continues to rise. Kelong's wire-braided hose series meets and exceeds these evolving standards.
Polyurethane and composite materials are replacing traditional rubber in seal and guide ring applications, offering superior temperature resistance, lower swelling rates, and extended service life — core advantages of Kelong's KL-series product lineup.
Vietnam's strategic location makes Hanoi a natural distribution hub for hydraulic products destined for Laos, Cambodia, Myanmar, and Thailand. Exporters with established Vietnamese partnerships gain a critical foothold in the broader ASEAN industrial market.
Hanoi's proximity to Hai Phong — one of Vietnam's busiest seaports — enables efficient import and re-export of hydraulic support carriers, reducing lead times and logistics costs for regional buyers.
Vietnam's ASEAN Free Trade Area (AFTA) agreements and China-Vietnam trade corridors allow hydraulic products to reach Hanoi buyers at significantly lower tariff rates compared to Western alternatives.
ISO 9001 and IRIS-certified products from Kelong meet Vietnamese industrial standards (TCVN) and international procurement requirements, making them suitable for government-funded infrastructure projects in Hanoi.
Kelong's team of 180+ engineers provides comprehensive technical documentation, custom sizing, and after-sales support — critical for Vietnamese operators who require localized technical assistance for hydraulic carrier maintenance.
Real-world deployments of Kelong hydraulic support carriers and hose systems across mining, energy, offshore, and infrastructure projects.

Ultra-tough, high-pressure hydraulic hose and carrier systems delivering rock-solid machinery performance in underground coal mining environments across China and Vietnam.
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Rigorously tested hydraulic hose assemblies maintaining stability and pressure integrity under extreme crane load conditions at major construction sites.
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Innovative design combining flexibility and tensile strength for offshore drilling rigs — easy to install, corrosion-resistant, and rated for deep-sea pressure environments.
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High-pressure hydraulic hose systems upgrading wind turbine pitch and yaw control efficiency — deployed across Vietnam's growing coastal wind farm installations.
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Precision hydraulic hoses sealing tight and lasting long in high-pressure tunnel boring machine settings, cutting maintenance costs on Hanoi's underground metro expansion projects.
View CaseFour pillars of excellence that set Kelong apart as your preferred hydraulic support carrier exporter to Hanoi and across Southeast Asia.

Boasting over 500 employees, nearly 180 of whom are engineers and technicians, along with a dedicated R&D center and 7%+ annual R&D investment, Kelong ensures robust and diverse production capacity for hydraulic support carriers and related components.
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With ISO 9001 and IRIS certifications, our professional quality team conducts strict inspections throughout every stage of the production process, guaranteeing top-notch hydraulic product quality that meets global procurement standards.
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Powered by a large skilled workforce and substantial R&D investment, Kelong is capable of manufacturing a comprehensive range of hydraulic seals, hoses, and support carrier systems to meet demands across multiple industries simultaneously.
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Equipped with specialized testing laboratories and advanced measurement equipment, Kelong conducts comprehensive pressure, endurance, and material compatibility tests on all hydraulic support carriers and hose assemblies before delivery — ensuring zero-defect export standards.
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Explore our complete range of hydraulic seals, guide rings, and high-pressure hoses — engineered to perform in the most demanding industrial applications across Southeast Asia.
Connect with Kelong New Materials today for competitive pricing, certified quality, and fast export delivery to Vietnam and across Southeast Asia. Our engineering team is ready to provide customized hydraulic solutions for your specific industrial requirements.
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