Every engineer or purchaser working with cable assemblies knows the frustration of mismatched components. You order a batch of nylon cable gland for your project, and once they arrive—you realize half of them don’t fit your cable diameter or IP rating requirements. Sound familiar? That’s where understanding a nylon cable gland specification becomes essential.
In this post, we’ll walk through how to read, interpret, and apply the specifications you see on data sheets or product catalogs—so your next project goes smoothly. Whether you’re sourcing for a control panel, machinery, or outdoor electrical installation, this guide is here to simplify the technical jargon and help you choose the right nylon cable gland.
A Standard Nylon Cable Gland is a mechanical device that secures and seals the end of a cable to an enclosure, equipment, or junction box. It provides strain relief, environmental protection, and sometimes grounding (though nylon itself is non-conductive).
These glands are commonly made from polyamide (PA6 or PA66) material and used in electrical installations where lightweight, corrosion resistance, and insulation properties are critical.
Typical applications include:
In short, whenever you need to protect cables while maintaining ingress protection, nylon glands are a reliable, cost-effective choice.
A cable gland specification describes all technical parameters that determine how and where the gland can be used. Understanding these specs ensures compatibility between cables, enclosure entries, and environmental standards.
If a supplier sends you a product spec sheet, it may include a matrix of features like size, thread type, clamping range, IP rating, and operating temperature. By decoding these terms, you can confidently select the right gland without second-guessing.
Below is a breakdown of the core elements you’ll often find in a nylon cable gland specification sheet, with examples for clarity.
| Parameter | Description | Example Value |
|---|---|---|
| Thread Type | Defines how the gland fits into enclosure threads. Common options: Metric (M), PG, NPT, or G threads. | M20 x 1.5 |
| Clamping Range | The cable diameter range that fits snugly into the gland. | 6–12 mm |
| IP Rating | Indicates ingress protection against dust and water per IEC 60529. | IP68 |
| Material | Usually polyamide PA6 or PA66 for durability and UV resistance. | Nylon PA6 |
| Sealing Material | Inner gasket or o-ring material, typically NBR or EPDM. | NBR rubber |
| Operating Temperature | Thermal range of safe use. | –40°C to +100°C |
| Color | Standard colors are grey (RAL 7035) or black (RAL 9005). | Black |
| Locknut Included | Specifies if a matching locknut comes with the gland. | Yes |
When reading these values, note that small variations can make a big difference. For example, an M16 IP68 gland rated for 3–7 mm cables won’t fit if your cable is 7.5 mm in diameter. Always cross-verify the clamping range with your actual cable outer diameter.
One of the most critical parts of the nylon cable gland specification is the IP rating. IP stands for Ingress Protection, describing how well a product guards against dust and water.
Here’s a quick reference table:
| IP Code | Protection Level | Application Scenario |
|---|---|---|
| IP65 | Dust-tight; protected from water jets. | Indoor panels or sheltered machinery. |
| IP67 | Submersible up to 1m temporarily. | Outdoor enclosures or solar junction boxes. |
| IP68 | Fully sealed for long-term submersion. | Marine or underground installations. |
If your project requires outdoor reliability, IP68 nylon cable glands are generally preferred. They ensure no moisture seeps through even under challenging weather conditions.
Thread selection matters more than many buyers realize. The wrong thread type leads to poor sealing and mechanical instability.
Common thread standards:
When comparing metric vs. PG cable glands, remember that each type requires a matching threaded knock-out hole or adapter fitting. Always confirm compatibility with your enclosure before ordering.
Choosing the right nylon cable gland size revolves around the clamping range. Each gland model covers a specific range of cable diameters. To find the right one:
Here’s a sample reference chart for size selection:
| Gland Type | Thread Size | Clamping Range (mm) | Locknut Type |
|---|---|---|---|
| PG7 | PG7 | 3–6.5 | PG |
| M16 | M16 x 1.5 | 4–8 | Metric |
| M20 | M20 x 1.5 | 6–12 | Metric |
| M25 | M25 x 1.5 | 9–16 | Metric |
| M32 | M32 x 1.5 | 11–21 | Metric |
Tip: Always check whether the nylon cable gland supplier offers custom sizes or oversized glands for thick cable jackets.
A nylon cable gland performance isn’t just about sealing—it’s also about mechanical stress resistance and environmental endurance. For industrial use, PA66 (reinforced polyamide) glands provide higher tensile strength and better heat stability.
Performance highlights:
If your project environment involves heat, oil exposure, or persistent moisture, always confirm the chemical resistance and temperature limits in the specification sheet.
For B2B buyers and projects requiring compliance documentation, it’s critical that your chosen cable glands are certified to international standards. This ensures safety, reliability, and ease of import/export.
Look for labels like:
Working with a manufacturer who provides full Nylon Cable Gland Specification and test reports can save you from compliance headaches during project acceptance or audits.
Let’s face it—even seasoned engineers make mistakes when interpreting Nylon Cable Gland Specification. Here are some tips to avoid them:
If you’re unsure, contact the supplier and ask for a detailed specification sheet or drawing before placing bulk orders.
While metal cable glands excel in rugged environments, nylon cable glands have their own advantages:
| Feature | Nylon Cable Gland | Metal Cable Gland |
|---|---|---|
| Material | PA6 / PA66 | Brass / Stainless steel |
| Weight | Lightweight | Heavy |
| Corrosion Resistance | Excellent | Moderate |
| Electrical Conductivity | Insulating | Conductive |
| Cost | Lower | Higher |
| Outdoor Use | Yes (IP68 models) | Yes |
| Vibration Resistance | Good | Excellent |
For general industrial and automation applications, nylon glands provide the best balance of protection, flexibility, and cost. Unless your setup requires EMI shielding or high-temperature stability, nylon is a dependable choice.
Understanding a nylon cable gland specification doesn’t have to be an engineer’s nightmare. Once you know how to decode thread size, IP rating, and clamping range, selecting the right gland becomes straightforward.
Remember, accurate specs lead to fewer installation issues, better cable protection, and improved system reliability. When in doubt—send us your cable diameter and application details, and our team will help you choose the perfect nylon cable gland specification for your project.
It refers to a nylon cable gland with a metric M20 thread and typically supports 6–12 mm cable diameters, often with IP68 protection.
Yes, provided they are rated IP68 and UV-resistant. Look for PA66 UV-stabilized materials.
Generally, yes—if the sealing washer and threads remain intact. However, reinstallation may reduce IP efficiency.
Typically –40°C to +100°C, depending on the specific polyamide formulation.
No. For armored cables, choose metal glands with grounding capabilities.
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GHX mainly deals in waterproof cable glands and other products. Our products have passed ISO9001, CE, ROHS and other certifications, which proves our product quality and market competitiveness.
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