Explore our foundational range of heavy-duty cable glands engineered for high mechanical retention and optimal environmental protection.
Understanding critical structural dimensions, thread profiles, and material selection parameters for cross-sectional cable management.
In high-voltage electrical design and heavy engineering projects, a 16 Sq Mm cable represents a key transition point between light-duty power distribution and high-capacity electrical loading. Correct termination and environmental isolation of these cables require exact dimensional specifications. Using an mismatched cable gland size directly compromises the assembly's integrity, exposing components to ingress from moisture, chemical agents, and combustible gases, while failing to provide proper strain relief.
A conductor with a nominal cross-sectional area of 16 mm² exhibits varying overall outer diameters (OD) depending on its structural layers. For example, unarmored 16 mm² single-core cables insulated with PVC or XLPE typically feature an outer diameter range of 8.5 mm to 11.5 mm. Conversely, multi-core configurations (e.g., 3-core or 4-core 16 mm² cables) or Steel Wire Armored (SWA) variants can exhibit external diameters ranging from 18 mm to 27 mm. Identifying this external dimension is critical to matching the appropriate cable gland sizing.
| Cable Core Structure (16 mm²) | Typical Cable OD Range | Metric Gland Recommendation | PG Gland Recommendation | NPT Gland Recommendation |
|---|---|---|---|---|
| Single Core (Unarmored) | 8.2 mm - 11.5 mm | M20 x 1.5 (Clamping: 6-12mm) | PG13.5 / PG16 | NPT 1/2" |
| 2-Core (Unarmored / Flexible) | 14.0 mm - 18.5 mm | M25 x 1.5 (Clamping: 13-18mm) | PG21 | NPT 3/4" |
| 3-Core (Unarmored / Flexible) | 17.0 mm - 21.5 mm | M32 x 1.5 (Clamping: 18-25mm) | PG21 / PG29 | NPT 1" |
| 4-Core (Unarmored) | 19.5 mm - 24.5 mm | M32 x 1.5 (Clamping: 18-25mm) | PG29 | NPT 1" |
| Multi-core SWA (Armored) | 22.0 mm - 28.0 mm | M32 / M40 (Armored Gland) | PG29 / PG36 | NPT 1-1/4" |
A cable gland must perform three key functions under pressure: dynamic sealing, electrical continuity (especially for armored cables), and reliable strain relief. The clamping claw of our cable glands utilizes a high-performance sealing insert made of EPDM rubber or high-resistance silicone. When tightened to the recommended torque specification, the sealing ring compresses uniformly around the cable sheath, creating a gas-tight seal that blocks water up to IP68 standard (tested at 5 bar depth for 72 hours).
For industrial automation and robotic installations where machinery moves continuously, standard termination points experience severe fatigue. Under the guidelines of EN 62444, cable glands must offer tensile retention levels that prevent pulling forces from shifting the wire terminals within the electrical enclosure. Our 16 Sq Mm cable gland solutions provide pulling resistance class A, securing connections against unexpected mechanical impact and continuous operational vibration.
A Tier-1 industrial connectivity solutions provider integrating R&D, advanced manufacturing, and global logistical support.
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.
Leveraging high-precision robotics, optimized supply structures, and zero-defect quality control systems.
Using advanced multi-axis CNC machines, we manufacture metal gland bodies (brass or stainless steel) within tight tolerances (+/-0.02mm). This prevents thread binding and ensures a tight, gas-proof fit during installation.
From chemical analysis of raw material bars to salt spray testing (IEC 60068-2-11) and dynamic tensile pull-off force inspection, every batch is registered with a unique QR code for complete traceability.
Located in Yueqing, Zhejiang—the electronics capital of China—we source high-purity brass, engineering nylon PA66, and certified stainless steel directly from primary steelworks, shielding our clients from raw material price volatility.
CNC Machining Workshop
Automated Product Processing
High-Capacity Assembly Line
Nylon Cable Gland Injection
Quality Calibration Stations
Precision Packaging Line
Advanced Testing Laboratory
Warehousing and Logistics Center
Our solutions protect critical connections in sectors ranging from renewable energy systems to automated factories.
Cable glands are critical for new energy vehicles (NEVs), serving as essential components to manage and protect cables in high-voltage systems, battery packs, motor controllers, charging interfaces, and other core electrical units. Engineered to withstand extreme temperatures, vibration, moisture, and chemical exposure, they ensure reliable sealing, prevent dust/water ingress, and maintain insulation integrity to avoid electrical hazards. By securing and routing power, signal, and communication cables, they enhance the safety, stability, durability, and performance consistency of the vehicle’s electrical system. Compliant with automotive industry standards, high-quality cable glands help NEVs meet strict safety and reliability requirements, making them indispensable for electric cars, hybrid vehicles, and other new energy mobility solutions.
Cable glands are essential for robotics, managing and protecting power, signal, and data cables in industrial robots, cobots, AMRs, and more. Adapted to dynamic movements, harsh industrial environments (dust, coolant, mechanical stress), they prevent tangling, abrasion, and disconnection while ensuring IP68-rated sealing. By safeguarding electrical connections and reducing cable wear, they enhance robotic operational stability, precision, and service life. Compatible with various cable sizes and compliant with IEC/UL standards, they are foundational for reliable robotic systems.
Cable glands are vital for onshore/offshore wind power systems (turbines, substations, tower bases), protecting power/control/signal cables. Engineered to resist salt fog, extreme temps (-52℃ to 90℃), vibration, and UV, they offer IP68 sealing, explosion-proof performance, and EMC shielding. Made of durable EPDM rubber or 316L stainless steel or brass , they prevent cable abrasion/displacement and electrical hazards, ensuring long-term operational stability and safety.
Cable glands are key protective components in rail transit systems, widely used in rolling stock, substations, tunnels, and equipment rooms of metro, high-speed rail, and intercity rail. They secure and protect power, control, and signal cables. Adapted to harsh operating conditions, they feature an IP68 protection rating, resisting moisture, dust, and rodent damage, while withstanding extreme temperatures from -40℃ to 90℃ and continuous vibration. They are offering explosion-proof and sealing performance to prevent cable abrasion, signal interference, and fire spread. Their modular design supports future capacity expansion, extends the service life of cables and equipment, and ensures the long-term safe and stable operation of rail transit systems.
Our products conform to major international safety and environmental regulations, ensuring smooth project approval.
Operating a global electrical infrastructure engineering business requires compliance with rigorous and localized standards. Sourcing from our Zhejiang facility ensures that your installations remain fully compliant with European, North American, and Asian electrical codes. From compliance with the RoHS Directive 2011/65/EU and its amendment (EU) 2015/863 (limiting heavy metals like Lead, Cadmium, and Mercury) to the complex requirements of the REACH regulation, we supply products with full material declaration documentation.
For installations in hazardous areas (oil & gas, petrochemical, grain processing facilities), we provide explosion-proof cable glands with ATEX (Directive 2014/34/EU) and IECEx certifications. These systems prevent internal sparks or combustion gases from escaping the junction box, maintaining flameproof (Ex d) or increased safety (Ex e) protection in Zone 1, Zone 2, Zone 21, and Zone 22 environments.
Exploring the next generation of smart, eco-efficient, and extreme-environment cable management components.
As industrial networks transition toward high-density power distribution and data communication, the technical design of cable management systems is evolving rapidly. At Zhejiang Hongxiang Connector Co., Ltd., we are investing in advanced development across three main technical areas:
Future cable glands will do more than secure and seal cables; they will act as active monitoring points. We are researching the integration of micro-sensors within the gland body to monitor temperature, humidity levels, and structural vibration at termination points. This data will be transmitted via low-power wireless protocols (such as LoRa or BLE) to centralized monitoring systems. This enables predictive maintenance for critical connections in wind turbines and rail systems before an electrical fault occurs.
To reduce the environmental footprint of our manufacturing process, our material engineering team is testing bio-based, halogen-free nylon formulations and highly stable fluorocarbon elastomers. These materials maintain the UL94 V-0 flame-retardant performance and IP68 sealing rating of traditional petroleum-based polymers, while reducing greenhouse gas emissions during production by up to 35%.
With the growth of automated high-frequency robotics and high-voltage EV charging networks, electromagnetic interference (EMI) protection is increasingly critical. Our upcoming EMC line features a redesigned contact spring assembly. This design ensures low contact resistance between the cable shield and the metal gland body, maintaining signal integrity and preventing noise in sensitive automated assembly lines.
Expert engineering answers to common technical questions regarding 16 mm² cable gland sizing and application.
Explore our targeted product range designed for specialized ventilation, explosion-proof environments, and heavy-duty industrial wiring.
Hongxiang
