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Our single cable gland series for explosion-proof environments combines IP68 waterproofing, UL listing, and ATEX certification — purpose-built for oil & gas, chemical, mining, and other hazardous-area installations worldwide.
The global explosion-proof equipment market is experiencing robust growth driven by tightening industrial safety regulations, rapid expansion of oil & gas infrastructure, and accelerating automation across hazardous industries. Single cable glands — as a fundamental sealing and entry component — sit at the heart of this transformation.
Driven by regulatory mandates such as ATEX (EU), NEC 500/505 (North America), IECEx (international), and GB3836 (China), manufacturers and facility operators worldwide are mandated to use certified explosion-proof cable entries. Single cable glands remain the most specified component in hazardous area electrical installations — from Zone 0 oil refineries to Zone 2 chemical processing facilities.
A single cable gland is a precision-engineered mechanical sealing device designed to secure and seal a single electrical cable as it passes through an enclosure wall, panel, or junction box in a hazardous (explosive) atmosphere. Unlike multi-cable or split glands, the single-entry design maximizes sealing integrity around one cable, providing a certified, gas-tight, and flame-proof barrier that prevents ignition sources from escaping into the surrounding explosive atmosphere. In explosion-proof applications, these glands must meet stringent international standards — including ATEX, IECEx, UL, and IP68 — ensuring that even in the presence of flammable gases, vapors, dusts, or fibers, the electrical system remains intrinsically safe.
Every single cable gland in our explosion-proof range is engineered to deliver multi-layer protection, long-term reliability, and installation efficiency across the harshest industrial environments.
Certified to IP68 — the highest standard for dust and water ingress protection — ensuring complete sealing even under prolonged submersion. Ideal for offshore platforms, underground mining, and outdoor chemical plants.
Fully certified for use in Zone 1, Zone 2, Zone 21, and Zone 22 hazardous areas. Our glands carry ATEX, IECEx, and UL explosion-proof approvals — meeting both European and North American market requirements without compromise.
Available in nickel-plated brass, 304/316L stainless steel, and engineering-grade nylon — each material selected for optimal corrosion resistance, mechanical strength, and chemical compatibility in specific hazardous environments.
Engineered to perform reliably from -60°C to +120°C, making them suitable for Arctic oil fields, high-temperature refineries, and desert solar installations. Sealing compounds retain elasticity across extreme thermal cycles.
Metal-body glands provide 360° continuous EMC shielding continuity, critical in environments with sensitive instrumentation, PLCs, and frequency drives — preventing electromagnetic interference from disrupting process control systems.
Optimized thread geometry and compression seal design allow fast, reliable installation without special tooling — reducing installation time by up to 40% compared to traditional gland designs, cutting project labor costs significantly.
Single cable glands for explosion-proof environments are not one-size-fits-all. Each industry presents unique challenges in terms of atmosphere classification, cable type, chemical exposure, and regulatory framework. Below we examine the most critical deployment scenarios.
Wellheads, drilling rigs, FPSOs, and refineries operate in Zone 0/1 environments with continuous or intermittent presence of flammable hydrocarbon vapors. Single cable glands here must provide Ex d (flameproof) or Ex e (increased safety) protection, combined with IP66/IP68 sealing to withstand high-pressure washdowns, seawater spray, and H₂S-rich atmospheres. Stainless steel glands with EPDM seals are the preferred specification.
Chemical facilities handling solvents, acids, and reactive gases require cable glands with superior chemical resistance. Nylon PA66 and 316L stainless steel glands resist aggressive media while maintaining gas-tight seals around instrumentation cables, power feeds, and signal lines running through classified Zone 1 and Zone 2 areas. REACH and RoHS compliance is mandatory for European installations.
Coal mines and metalliferous mines present Zone 21/22 dust-explosive atmospheres where methane and coal dust create severe ignition risks. Single cable glands with IP6X dust-tight ratings and MSHA-approved materials protect motor junction boxes, conveyor control panels, and ventilation systems. Anti-corrosion coatings extend service life in high-humidity underground environments.
Gas turbine halls, hydrogen-cooled generators, and battery energy storage systems (BESS) demand explosion-proof cable entries for instrumentation, control, and power cables. Single glands rated for Group IIC (hydrogen) atmospheres are specified for hydrogen facilities, while armored cable glands with dual IP68 sealing protect critical infrastructure in outdoor substations and wind farm electrical rooms.
Offshore oil platforms, LNG carriers, and naval vessels combine explosive atmosphere classification with extreme marine corrosion challenges. Double-sealed armored explosion-proof cable glands provide both ATEX Zone 1 certification and IP68 submersion protection, while 316L stainless steel construction resists chloride-induced corrosion in saltwater environments. DNV and Lloyd's Register approvals are standard requirements.
Dust-explosive Zone 21 areas in flour mills, sugar refineries, and pharmaceutical API manufacturing require IP6X-rated glands made from FDA-compliant materials. Nylon glands with smooth, crevice-free surfaces prevent bacterial harboring during high-pressure steam cleaning, while maintaining certified dust-tight sealing around motor and sensor cables in hygienic process areas.
The explosion-proof cable gland sector is undergoing rapid technological evolution, driven by the convergence of Industry 4.0, decarbonization, and increasingly stringent global safety standards. Understanding these trends is essential for procurement engineers, EPC contractors, and facility designers.
Next-generation cable glands are being developed with embedded IoT sensors capable of monitoring seal integrity, cable temperature, and mechanical stress in real time. This predictive maintenance capability allows operators to identify seal degradation before failure — a critical advancement for unmanned offshore platforms and remote industrial sites.
As green hydrogen emerges as a cornerstone of decarbonization strategies, cable glands rated for Group IIC hydrogen atmospheres are seeing exponential demand growth. Electrolyzer plants, hydrogen fueling stations, and hydrogen pipeline infrastructure all require IECEx/ATEX-certified single cable glands with hydrogen-resistant sealing compounds.
High-performance polymers such as PEEK, PPS, and glass-fiber-reinforced nylon are replacing traditional brass in weight-sensitive applications. These materials offer equivalent mechanical performance, superior chemical resistance, and significant weight reduction — critical for offshore topside installations where structural load is a design constraint.
The ongoing convergence of ATEX, IECEx, UL, and CSA standards is simplifying global project procurement. Manufacturers offering single cable glands with multi-standard certification — covering EU, North America, Asia-Pacific, and Middle East markets simultaneously — are gaining significant competitive advantage in large-scale EPC projects.
Offshore wind farms, floating solar installations, and battery storage systems are creating new demand for explosion-proof and high-IP-rated cable glands. Photovoltaic inverter rooms and battery enclosures increasingly require IP68-rated glands with UV resistance and thermal stability — a rapidly growing segment for specialized manufacturers.
Procurement specifications from multinational energy and chemical companies now mandate RoHS, REACH, and conflict-mineral compliance from cable gland suppliers. Manufacturers with robust environmental management systems and transparent supply chain documentation are increasingly preferred in global tender processes.
Founded in 2006, Zhejiang Hongxiang Connector Co., Ltd. is rooted in Yueqing, Zhejiang — a national hub for precision electrical manufacturing in China. After nearly two decades of dedicated development, the company has evolved into a large modern industrial connectivity solutions provider integrating R&D and design, large-scale intelligent manufacturing, global sales, and one-stop services. It stands as a benchmark enterprise of considerable scale and influence in China's cable gland and connector industry, and a key player among national high-tech enterprises.
Boasting a modern intelligent manufacturing industrial park, the company operates a standardized production workshop of over 10,000 square meters, equipped with multiple high-precision automated production lines, CNC machining centers, and a full-process quality control laboratory, establishing an industry-leading large-scale manufacturing system. With a core team of more than 300 professionals — over 30% of whom are R&D and quality management personnel — its annual production capacity exceeds 80 million units. The company is fully capable of handling large-volume orders, urgent custom projects, and long-term strategic supply partnerships for domestic and international clients, ranking among the industry's top tier in both production capacity and delivery efficiency.
Its core product portfolio includes metal cable glands, nylon cable glands, waterproof cable glands, explosion-proof connectors, conduit fittings, and various customized connecting accessories. These products serve high-end sectors such as industrial electrical equipment, new energy equipment, rail transit, shipbuilding and heavy industry, construction machinery, military supporting facilities, and communication & industrial control. Adhering to stringent manufacturing standards and uncompromising quality requirements, the company has obtained a series of internationally recognized certifications, including ISO9001, IATF16949 automotive quality management system, CE, UL, ATEX explosion-proof certification, RoHS, and IP68 high-protection rating. Its core technologies and product performance have reached international advanced levels, with nearly 100 invention and utility model patents to its name, continuously driving technological upgrading across the industry.
From a small waterproof brass cable gland workshop in 2006 to a globally recognized explosion-proof connectivity solutions leader — our journey reflects two decades of relentless innovation and quality commitment.
Our explosion-proof cable glands are backed by a comprehensive portfolio of internationally recognized certifications — ensuring compliance, safety, and market access across global hazardous-area projects. Certifications include ISO9001, IATF16949, CE, UL, ATEX, IECEx, RoHS, REACH, and IP68.
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The company currently has more than 120 employees, more than 200 production equipment, and is equipped with a professional sales and management team, committed to improving production efficiency and product quality for explosion-proof cable gland applications worldwide.
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Our professional engineering and production teams operate advanced CNC machining centers, automated assembly lines, and full-process quality control laboratories — ensuring every explosion-proof cable gland meets the highest international standards before delivery.
Hoonsun participates in major international trade exhibitions including Canton Fair, Hannover Messe, and Middle East Electricity — showcasing our latest explosion-proof cable gland innovations and connecting with global distributors, EPC contractors, and industrial end-users.
Explore our complete portfolio of single cable glands engineered for explosion-proof and hazardous-area environments — each certified to international standards and available for global OEM and project supply.
