Foshan Dalong Chain
Equipments Sales Co., Ltd.
Equipments Sales Co., Ltd.
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Engineered for the relentless demands of international airport escalator and elevator systems — zero compromise on safety or uptime.
International airports are among the most demanding environments for mechanical systems. With passenger volumes often exceeding 50 million annually at major hubs, escalators and elevators operate continuously — 24 hours a day, 365 days a year. In this context, chain block accessories are not merely mechanical components; they are mission-critical infrastructure that directly impacts passenger safety, operational efficiency, and airport reputation.
Every link in an airport escalator's drive chain, every slide block in an elevator door mechanism, and every compression chain in a passenger boarding bridge must perform flawlessly under extreme load cycles, temperature variations, and relentless wear. A single component failure can trigger cascading shutdowns, disrupt terminal flow, and create significant safety liabilities.
The global airport infrastructure market is valued at over $180 billion and continues to expand rapidly, driven by surging air travel demand in Asia-Pacific, the Middle East, and Africa. This growth directly fuels demand for high-performance chain block accessories engineered specifically for the aviation sector's stringent requirements.
Key figures that define the scale and importance of chain block accessories in global airport operations.
International airports impose performance requirements far beyond standard commercial installations.
Airport chain components must meet EN115, ASME A17.1, and ISO 9001 standards. Our accessories undergo rigorous fatigue testing, tensile load verification, and dimensional precision checks to ensure compliance with international aviation authority requirements.
Airports cannot afford downtime. Our precision-machined drive chains and return chains are engineered for extended service intervals — reducing maintenance frequency and ensuring continuous passenger flow through terminals, gates, and concourses.
From sub-zero cargo areas to tropical hub airports, our chain block accessories maintain dimensional stability and lubrication integrity across a temperature range of -30°C to +80°C, ensuring consistent performance regardless of climate.
Airports operate mixed fleets of Otis, Schindler, Kone, Mitsubishi, Hitachi, and Fuji systems. Our accessories are engineered to exact OEM specifications, providing seamless drop-in replacement compatibility across all major brands.
With warehouses in Foshan, Suzhou, Shanghai, and Nantong, we maintain buffer stock of critical airport components. Emergency orders can be dispatched within 24 hours to any major international hub, minimizing operational disruption.
Legacy airport installations often require non-standard or discontinued components. Our engineering team specializes in reverse-engineering and custom manufacturing chain block accessories for older escalator and elevator models, eliminating costly full-system replacements.
Chain block accessories serve diverse and critical roles across every zone of a modern international airport facility.
The highest-traffic application in any airport. Terminal escalators connecting departure levels, arrivals, and transit zones operate at near-constant duty cycles. Drive chains and step chains must withstand peak loads exceeding 10,000 passengers per hour, requiring premium-grade chain block accessories with extended lubrication retention and anti-fatigue properties.
Inter-terminal transit systems and airside people movers rely on precision chain drive mechanisms for smooth, jerk-free operation. Our escalator compression chains and drive chains are deployed in APM boarding zones at major hubs, ensuring the seamless transfer of millions of transit passengers annually.
Conveyor and escalator systems in baggage claim halls operate under heavy, uneven loads from luggage. Chain block accessories in these zones must resist shock loads and contamination from dirt and moisture, requiring specialized surface treatments and sealed bearing designs.
Airport multi-story parking structures demand elevator door slide blocks, screws, and nuts that can withstand the rigors of high-frequency usage in outdoor-adjacent environments. Corrosion resistance and dimensional precision are paramount for maintaining door alignment and passenger safety.
Passenger boarding bridges incorporate elevation adjustment mechanisms driven by chain block systems. These components must perform reliably under outdoor conditions, aircraft wake turbulence vibrations, and the precise positioning demands of modern wide-body aircraft docking procedures.
Integrated airport hotels, duty-free retail zones, and food court levels within terminal buildings rely on escalator and elevator systems that must blend seamless aesthetics with industrial-grade reliability. Our turning chains and return chains enable smooth directional changes in architecturally complex terminal designs.
The aviation infrastructure sector is undergoing rapid transformation — and chain block accessory technology is evolving in step.
Airport operators are increasingly deploying IoT sensors on escalator and elevator chain systems to monitor vibration, temperature, and elongation in real time. This shift toward predictive maintenance reduces unplanned downtime by up to 40% and extends component service life. Chain block accessories are now being designed with embedded sensor compatibility and smart lubrication channels to support these digital maintenance ecosystems.
New-generation airport escalators demand chain components that reduce dead weight without sacrificing tensile strength. Advanced alloy steel formulations and surface hardening technologies are enabling chain block accessories that are up to 15% lighter than previous generations while delivering superior fatigue resistance — directly contributing to energy efficiency targets set by IATA's Net Zero 2050 roadmap.
Airports are increasingly demanding "maintenance-free" chain systems that can operate for extended periods without re-lubrication. Self-lubricating sintered bushings, PTFE-coated pins, and oil-impregnated bearing designs are becoming standard specifications in new airport escalator procurement contracts, driving innovation across the chain block accessories supply chain.
Major international airports — particularly in Europe and the Asia-Pacific — are implementing green procurement policies that require suppliers to demonstrate reduced carbon footprint in manufacturing, recyclable packaging, and compliance with RoHS and REACH chemical regulations. Suppliers of chain block accessories must now align with these environmental standards to access premium airport contracts.
The Asia-Pacific region is projected to account for over 50% of global air passenger growth through 2040, driving an unprecedented wave of new airport construction and terminal expansion. Countries including Indonesia, Vietnam, India, and the UAE are investing hundreds of billions in airport infrastructure — creating massive demand for high-quality chain block accessories from reliable international suppliers capable of meeting demanding delivery schedules.
Foshan Dalong Chain Equipments Sales Co., Ltd.
Foshan Dalong Chain Equipments Sales Co., Ltd. was established in January 2007 (formerly known as Nanhai Yanbu Seelee Elevator Parts Factory, founded in 1990). With over 30 years of accumulated expertise, we have grown from a regional manufacturer into a globally recognized supplier of precision chain block accessories for the elevator and escalator industry.
Throughout our operational history, we have steadfastly upheld the principles of "Customer First, Quality First," earning widespread acclaim across our diverse international client base. This reputation has facilitated partnerships with numerous prestigious clients spanning Europe, America, Southeast Asia, the Guangdong-Hong Kong-Macao Greater Bay Area, and Taiwan.
Among our esteemed partners are industry leaders including Otis, Schindler, Hitachi, Kone, Mitsubishi, Fuji, and MTR Singapore — all of whom have recognized our commitment to excellence and reliability.
For over a decade, Foshan Dalong Chain Equipments Sales Co., Ltd. has upheld a development policy characterized by pragmatism, self-reliance, and innovation. Specializing in the sales of major brand elevator components, we offer an integrated approach that encompasses sales, manufacturing, and engineering technical consulting.
We specialize in custom manufacturing of parts for elevators and escalators that are non-standard, discontinued, or of older models — a capability that is particularly valuable for airport operators managing legacy escalator fleets that require specialized chain block accessories no longer available through original manufacturers.
We provide our clients in Europe, America, Southeast Asia, the Guangdong-Hong Kong-Macao Greater Bay Area, and Taiwan with comprehensive pre-sales technical consultations, a reliable supply of high-quality parts, and exemplary after-sales service. Our company operates extensive production facilities totaling over 4,500 square meters in Suzhou, complemented by additional factories in Shanghai and Nantong, with products currently exported to over 100 countries worldwide.
Our Foshan office serves as a strategic logistics and customer service center for rapid response to international airport maintenance demands.
At our Foshan office, the warehouse is well-stocked with a substantial inventory of commonly utilized spare parts to guarantee ample availability. Our delivery sector is supported by an effective logistics system, ensuring the swift and punctual distribution of spare parts to our clientele.
We boast a seasoned sales team and a cadre of expert elevator engineers, both fully equipped to furnish our customers with rapid and precise solutions alongside comprehensive after-sales services. For international airport clients, this means access to emergency replacement chain block accessories with same-day dispatch capability and technical support available across multiple time zones.
State-of-the-art manufacturing facilities equipped with advanced production equipment and staffed by seasoned professionals.
Explore our complete product portfolio — engineered for international airport escalator and elevator systems worldwide.
