At RST, we are currently collaborating with our strong partner Bimed to develop the CRUX Cable Gland, a new type of cable gland available in both metal and plastic versions. These are particularly suitable for industrial applications requiring increased strain relief values and torsional resistance, such as those found in EV charging stations or in combination with heavy-duty connectors, to hold cables with multiple wires or conductors together without damaging them.
The cable jacket and the cable core are compressed in the same way as with a traditional cable gland. However, thanks to its strong, specialized, and cable-friendly clamping system, the CRUX achieves strain relief values of 600 N and higher (depending on material and size). This is also the key difference from the equally new Conical Cage Cable Gland, whose primary purpose is to avoid compressing the internal cooling hoses—e.g., from DC chargers—while still achieving a very high strain relief of more than 1,000 N (100 kg).
The optimal combination of high strain relief and a wide clamping range
The CRUX cable gland made of polyamide is particularly noteworthy as a further development of the metal version of a single compression cable gland for non-armored cables in hazardous areas, as it features very wide clamping ranges that significantly exceed those of conventional cable glands—and all this with very compact external dimensions: The special silicone clamping seal in the form of an O-ring enables a very wide and variable clamping range, for example from 19 to 32 mm for the M32x1.5 gland size. This allows it to cover the entire clamping range of several comparable classic gland types at once. This concept offers the following innovative advantages and application possibilities for standard applications:
- Particularly suitable for applications involving heavy-duty connectors, electronic enclosures, or sensors where the cable diameter to be used later is not yet known.
- There is no longer any need to replace the seal or adjust it to the cable size—nor is reassembly required—which saves time and costs in production.
- The cold-flow effect in heavier cables is significantly reduced, which minimizes downtime and repair costs.
The CRUX cable gland concept is already well-known in environments at risk of gas and dust explosions, where it is used successfully. The metal version of the CRUX is currently undergoing the product launch process at RST and is expected to be available sooner than the plastic version, for which initial prototypes are already in the testing phase.
Overall, the new CRUX Cable Gland is a space-saving all-in-one solution for demanding requirements regarding clamping areas, high strain relief, and torsional resistance.
We will be happy to keep you updated on further product development and will inform you directly as soon as the first samples are available and initial delivery dates are known. Please feel free to contact our representatives:
