Feature: Enclosures
Bespoke designs Enclosure manufacturers are also frequently challenged with bespoke projects, which can include the sourcing and assembly of specific items, such as casters or a special type of door handle. An example of a complex enclosure
challenges that required specific engineering expertise was a recent railway project for Spelsberg. The project needed bespoke design of a plate to protect and shield the cables entering a signal cabinet. A severed connection would mean closure of that section of the rail network and significant financial penalties, so a bespoke enclosure was critical to the overall success of the project. Another example of response to
complex bespoke requests includes military specifications, such as the enclosure for a control unit which required a non-reflective, self- extinguishing outer coating to avoid reflections, crucial for night operations. Engineering advice is also frequently
Exact fit An obvious but crucial factor is the fit, especially where close dimensions could mean the enclosure fails to fit the allocated footprint, or where knock- out points for the entry of cabling for example, aren’t provided with sufficient access. Spelsberg provides a sample enclosure based on the specification and dimensions for customer testing in as little as 24 hours. Dependent on location of the
application, the enclosure may have diverse mounting options, which also include mounting internal components. Whether the application will be standalone or need to accommodate future expansion should also be considered. Some applications may have more standard features but require easy installation, to reduce on-site expenses.
Dependent on location of the application, the enclosure may have diverse mounting options, which also include mounting internal components
involved to accommodate specific requirements relating to the mounting of internal components and the entry of cabling or access points. To this extent, Spelsberg offers custom CNC machining, to furnish an enclosure with, for example, the right cutouts, hinge fixing points or threaded holes. We’re currently working on a unit to
monitor passengers’ body temperatures on entry to railways and airports. This enclosure requires specific, high- precision cutouts for precise placement of thermal imaging cameras; the CNC work is complex, involving specialised software to transpose the customer’s drawings to the production process. Spelsberg has a range of some 5,000
enclosures, but ultimately will advise on the design and manufacture of the exact enclosure for the customer’s custom requirements.
www.electronicsworld.co.uk November 2021 37
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