What Makes the BW-2 Armoured Cable Gland a Reliable Choice for Harsh-Condition Wiring

Harsh-condition wiring means different things on different sites. Offshore platforms deal with salt spray, mining operations with constant vibration, and chemical plants with corrosive air. In all of these environments, the cable entry point is often the first component to fail.

A failed gland breaks the mechanical support of the cable and, just as importantly, the electrical continuity between the cable armour and the equipment enclosure.

The BW-2 armoured cable gland from Hoonsun is a brass-bodied cable entry designed for these working conditions. It is sized for single-core armoured cables with plastic or rubber sheaths, seals at both the inner and outer sheath, and keeps the cable mechanically locked to the enclosure.

The sections below look at the mechanical performance that matters in practice: corrosion resistance, vibration behaviour, sealing, and the clamping of the steel wire armour.

Corrosion Resistance in Coastal and Process Environments

The gland body is machined from brass, a material that handles salt air and humidity far better than uncoated steel fittings. Brass also stays electrically conductive over time, which matters for a component that carries the earth path.

Hoonsun offers nickel-plated finishes across its metal cable gland range, and the product line is verified through the company’s 2000-hour wind tunnel erosion test. For sites with strong acid or aggressive chemical exposure, Hoonsun also supplies stainless steel glands (304 and 316L), so the material choice can be matched to the actual environment.

Holding Under Vibration

Pumps, motors, compressors and generators all produce vibration that works its way into fittings over time. A gland that loosens under this load loses its seal, and a loose armour clamp breaks the earth continuity, which is a safety issue on an industrial line.

Hoonsun’s cable glands pass a 2000 Hz vibration test, and the BW-2 uses the same locking principle on site: the lock nut fixes the gland against the enclosure, and the armour clamp grips the steel wire armour so the mechanical retention and the continuity of the earth path are maintained while the machine is running.

Watertight Sealing at the Cable Entry

The BW-2 seals in two places. The inner seal grips the cable sheath, and the outer seal closes the entry against dust and water. Both seals must be fitted and the gland fully assembled before the rating applies.

Hoonsun’s brand line is certified to IP68, and the gland should be installed with the sealing components supplied with it. The IP68 rating covers continuous immersion, so for underwater or wash-down installations, confirm that the cable and the enclosure are rated for the same conditions as the gland.

Clamping the Steel Wire Armour Without Crushing the Core

The point of an armoured gland is to terminate the armour properly. The BW-2 clamps the steel wire armour and, in Hoonsun’s own words, cutting the armour wires this way maintains the cable’s mechanical retention and the continuity of power transmission.

The compression is applied to the armour layer, not to the cable core, so the internal insulation stays intact.

The BW range is available in multiple thread and cable sizes, which covers the common diameters used in manufacturing, oil and gas, mining, and transport wiring. When a project needs a non-standard dimension, Hoonsun machines custom glands to the customer’s requirements, a normal route for OEM and panel builders.

Installation Tip: Tighten to Fit, Not to Force

Tighten the BW-2 only until the cable is held firmly. Over-tightening compresses the armour strands against the cable core and can damage the insulation underneath.

A snug fit gives three things at once: a solid mechanical grip, a watertight seal, and a clean earth path. If your cable diameter falls between two catalogue sizes, ask Hoonsun for the dimension chart before installing rather than forcing the wrong size.

FAQ

Q1: Can the BW-2 armoured cable gland be used for underwater installation?

A1: Hoonsun’s product line is certified to IP68, and the rating covers conti uous immersion. The BW-2 must be fully assembled with the sealing components supplied, and the cable and enclosure must carry ratings appropriate to the same conditions. For a specific submersion depth and duration, send the project details to Hoonsun for confirmation.

Q2: Is nickel-plated brass better than stainless steel for armoured cable glands?

A2: For most industrial sites, brass is the practical default: it machines cleanly, conducts well, and costs less than stainless steel. Nickel plating adds a corrosion-resistant surface layer for coastal and humid conditions. Stainless steel (304 or 316L) is the right choice where the fitting will be exposed to strong acids or aggressive chemicals. Hoonsun manufactures both, so the selection can be based on the environment rather than availability.

Q3: Does the armoured cable gland carry the earth continuity function?

A3: Yes. The gland clamps the steel wire armour and maintains continuity between the cable armour and the metal enclosure, which is the grounding bridge for the installation. This is also why correct installation matters: a loose gland can break the earth bond even though the seal still looks fine.

Conclusion

The BW-2 armoured cable gland covers the practical requirements of harsh-condition wiring: a brass body that resists corrosion, a 2000 Hz vibration-tested assembly, IP68-compliant sealing when correctly installed, and positive clamping of the steel wire armour.

It is used across manufacturing, oil and gas, mining, and transport applications for single-core armoured cables.

Send Hoonsun your cable outer diameter, armour construction, and working environment, and the team will recommend the matching gland size, supply the dimension chart, or arrange free product samples.