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Shaanxi Kelong New Materials Technology Co., Ltd., established in 1996, evolved from the Xianyang Kelong Rubber Products Institute, and has become a leading innovator in hydraulic seal technology. As a company integrating research, development, production, and sales, it focuses on manufacturing high-quality hydraulic seal sets, high-pressure hoses, and coal mine auxiliary transportation equipment. Our technologies and products serve critical sectors including coal mining, civil aviation, high-speed railways, engineering machinery, and wind power generation.
Our hydraulic seal kits play a vital role in construction machinery by ensuring optimal sealing performance for hydraulic cylinders, enhancing the operational reliability of heavy equipment such as excavators, cranes, loaders, and bulldozers. By preventing leaks and contamination ingress, these seals protect expensive hydraulic systems from failure, reducing downtime and maintenance costs.
With more than 500 employees—including over 180 engineers and technicians—and an R&D investment exceeding 7% of annual revenue, Kelong New Materials prioritizes continuous innovation. Our products are rigorously tested to meet and exceed international quality standards, supported by ISO and IRIS certifications.
The global construction machinery industry is advancing rapidly, driven by infrastructure development, urbanization, and sustainability demands. Hydraulic cylinders remain core components in this sector, and the demand for superior sealing technologies continues to grow.
Hydraulic seal kits have evolved to meet challenges such as higher operating pressures, greater environmental exposure, and longer service intervals. Key trends influencing the evolution of hydraulic seals in construction machinery include:
These trends show the importance of partnering with experienced seal manufacturers with strong R&D and quality control capabilities, such as Kelong New Materials, to ensure high-performance sealing solutions tailored to construction machinery demands.
Hydraulic seal kits are integral to maintaining efficiency, safety, and longevity in various construction equipment. Below are some critical application scenarios where these seals provide clear operational advantages:
Excavators rely on numerous hydraulic cylinders for arm, boom, and bucket movements. Hydraulic seal kits ensure the cylinders maintain fluid pressure under heavy loads and harsh environments. The seal kits prevent dust, dirt, and moisture ingress, which could otherwise accelerate wear or cause leakage that halts operations.
In cranes, hydraulic cylinders extend and retract booms, operate stabilizers, and control lifting mechanisms. Using premium hydraulic seal kits guarantees smooth movements, prevents leaks under high pressures, and withstands dynamic load variations for increased safety and reliability on site.
These machines operate in high-impact zones where hydraulic cylinders face abrasive materials and extreme environmental conditions. Advanced hydraulic seal kits provide superior sealing and wear resistance, minimizing hydraulic failures and reducing overall repair costs.
Hydraulic systems in trenchers, pile drivers, and compactors often require specific seal kits optimized for unique cylinder designs and operating parameters. Customized seal kits from experienced suppliers enable precision sealing and enhance equipment adaptability across diverse projects.
High-quality hydraulic seal kits thus contribute significantly to performance optimization, operational safety, and lifecycle cost reduction in today’s demanding construction machinery market.
KELONG NEW MATERIALS PROJECT CASES
Ultra-tough, high-pressure hydraulic hose and seal kits engineered for rock-solid machinery performance in demanding mining environments.
Rigorously tested hydraulic seal kits provide optimal stability and leak prevention for cranes operating under extreme conditions.
Innovative, flexible, and durable sealing solutions designed for easy installation on offshore rigs exposed to harsh marine environments.
Upgrading equipment efficiency and reliability with high-pressure hydraulic seal kits built for renewable energy machinery.
With over 500 employees including nearly 180 engineers and technicians, plus a strong R&D center and over 7% annual R&D investment, Kelong guarantees robust innovation and a versatile production capacity that meets multiple sector needs.
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Our ISO and IRIS-certified quality management system ensures that every hydraulic seal kit is manufactured under strict inspections, delivering top-notch reliability and performance.
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Leveraging a large experienced workforce and cutting-edge manufacturing lines, we meet diverse client needs for hydraulic sealing solutions across industries like construction, mining, and energy.
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Equipped with state-of-the-art testing facilities, our products undergo rigorous performance and endurance tests to ensure durability and excellence in demanding service conditions.
KL12 Hydraulic Lip Seal Wear Resistant With Small Housing Design
Low Friction PTFE Wiper Seal No Stick Slip Simple Groove Design
KL50 Double Acting Piston Seal PTFE / NBR Hydraulic Piston Packing Seal
KL06 NBR / PU / POM Heavy Duty Rod Seal For Mining Industry
KL04 Single Acting Hydraulic Rod Seals for light / medium duty applications
Three Piece Hydraulic Piston Seals With Elastomeric Sealing Element / Guide Backup Rings
Kl109 High Pressure Chevron Seal , PTFE Chevron Seals With Adjustable Housing
Single Acting U Cup Piston Seal / Polyurethane Hydraulic Seals For Light Duty Cylinders