For some time, industry has been calling out for a cable transit device which can significantly reduce the quantity, size and weight of cable sealing systems. The R&D department at global cable seal manufacturer Roxtec has developed an ideal solution after recently designing a ‘High Density’ cable seal, explains Phil Ridley – Roxtec’s EPC Manager for International Projects.
The effective protection of electrical equipment in heavy industrial and hazardous environments is a major engineering challenge. However, there remains increasing demand for solutions which provide environmental protection in the harshest of environments including potentially explosive atmospheres.
Roxtec has paid close attention to industry calls, and in particular clients within the oil and gas sector, before interrogating the design of cable entry devices used in terminal boxes and enclosures within hazardous environments. This work resulted in the manufacture of a ‘High Density’ cable entry system. Aside from providing environmental protection, the seal helps designers and installers save time, space and money.
Through our in-depth knowledge and experience of cable sealing we have understood for some time there has been a strong demand for solutions which can reduce the quantity, size and weight of cable entry systems for enclosures. With this in mind we designed the Roxtec HD system so that it can accommodate up to 32 cables. The ability to feed multiple cables into one opening can save large amounts of time as only one hole needs to be cut. The solution is also a cost saver as it dramatically reduces labour and production overheads compared to installing 32 separate traditional cable glands. Tests have further shown that the Roxtec HD solution can create weight savings of up to 50pc and can increase cable capacity by almost twice as much when compared to traditional cable glands.
The sealing system can be used across a broad variety of equipment from terminal boxes and enclosures to marshalling cabinets, junction boxes, fieldbus boxes and control systems. It has also been designed to meet key requirements of tightness, retention and corrosion resistance, and provides efficient environmental protection for electrical equipment.
We believe this product will be of particular interest to the oil and gas, process and pharmaceutical sectors due to its ability to withstand potentially explosive atmospheres. It can be used for many different cable types such as smooth, corrugated, armoured and non-armoured within non-hazardous locations such as industrial settings.
Roxtec has developed an international reputation for sealing cables and pipes entering structures, and its products are now increasingly being used to protect equipment. This is due to the fact that one of the greatest strengths of Roxtec’s product range is its durability.
The new certified Roxtec HD sealing solution is tested and approved for extreme environments from -60C to +80C, making it ideal for global projects. This cable transit device offers a direct replacement to stainless steel and brass cable glands. It has also been designed with an AISI 316L acid proof stainless steel frame which will not corrode in harsh environments. In addition, the peelable layer design means the cable seal size can be easily manipulated giving designers’ greater flexibility by not needing to know the final cable specification before beginning installation.
In a bid to further help designers, we also offer free online software through Roxtec Transit Designer. This can be used remotely with speed and ease removing the time-sensitive and costly process of designing detailed cable configurations. It can be used on touch screen devices and essentially helps designers and engineers select the right sealing solution. They can filter by application, certificate and sealing requirements enabling the design of a transit in just minutes. It also reduces risk. The project team gets it all right from the start – 3D models, drawings, material lists and installation instructions.
Key benefits of the Roxtec HD seal:
- Tested and approved for extreme environments (–60°C to +80°C).
- Simple, single cut-out design for up to 32 cables.
- Easy to use with armoured or non-armoured cables.
- Complimentary web-based design tool available.
- Ready and flexible for changing cable schedules.
- Multidiameter by Roxtec – modules with removable layers allow last-minutes changes to varying cable sizes.
For more information on the Roxtec HD seal visit http://www.roxtec.com/uk/products/new-products/roxtec-hd/
For more details, contact Roxtec UK at Waterfold Business Park, Bury Tel: 0161 761 5280 Email info@uk.roxtec.com or go online at: www.roxtec.com

