Enclosures
greatly affect the choice of material. You need to think about how frequently the latch will be used, as well as the weather conditions the latch may have to face, such as sun and wind exposure. If a latch must withstand tougher weather conditions or great amounts of force during its intended normal operation, then we recommend selecting a quarter-turn made of a stronger material like stainless steel or zinc.
4. Is consumer preference a factor in choosing your quarter-turn? How is it going to look, when it’s all said and done? Let’s be honest, consumers care less about the internal components of a lock, and more about the aesthetics of the entire knob. Will the quarter-turn be visible to the customer? If so, is there a certain aesthetic they prefer?
5. Is my supplier established and trustworthy?
This is the last and (arguably) most important question you should consider when selecting a quarter-turn.
It is critical to work with a supply team
who has experience in the application of enclosure hardware and are backed by a manufacturer who is respected and established, to best identify the specific needs of your application – especially where it is necessary to carry out a measure of customisation.
A major part of selecting your quarter turn lies in matching your requirements with the very large selection of specialist standard items made available, since someone somewhere has probably had a requirement the same as, or very similar to, your own. This has led to the offering of “standard specials” such as wing format handle or wing knob designs which facilitate improved manual operation on small, e.g., wall mounting enclosures, or may be used in pairs for larger cabinet doors in place of a more complex rod lock system.
Availability is in zinc die with chrome or black finish, as well as the stainless steel variants in both standard and mini sizes. These AISI 316 items provide protection up to IP65 and are suited to outdoor or arduous environments.
Many quarter turns are offered with
Quarter turn enclosure locks now assembled by Rocfast and available online
compression features and with visual status indication for installations where nuisance opening is potentially an issue, or where it may be important to tell if a lock is open or closed at a glance, e.g., in railway or special service vehicle use. Our own team prides themselves on a long and in-depth history of supply partnership with the specialist panel industry, such as high-quality manufacturers including our sales partner DIRAK, a relationship which enables us to assist with small or large quantity requirements and international logistics.
FDB Panel Fittings offer various standard lengths of quarter turn lock housings
The available range includes quarter turn designs for enclosures and cabinets located in washdown or external applications where they offer enhanced gasket compression to ensure optimal sealing performance, plus the compression function is inherently resistant to vibration induced loosening which can otherwise cause nuisance opening. This feature is especially useful on vehicles of all types where secure closure is critical. Many compression latches also incorporate visual position indicators as required e.g., for rail applications. Hygiene design requirements are catered for with approved blue sealing and crevice free styling executed with a highly polished surface.
Enclosure lock/latch wing handles ex-stock online and in stainless steel
www.cieonline.co.uk
The ability to visually check latching status is especially important with quarter- turn locks/latches which are generally small and round without positional reference, unless specifically added in manufacture – unlike L or T handles or swinghandles whose positional status can readily be seen by virtue of their operation.
Designed especially for use in hygiene defined areas classically designed quarter turns in AISI 316L with or without cylinder key locking mechanism, are used in hygiene areas of food, pharmaceutical, medical, laboratory and related industries, where it is important to manage and minimise the accumulation of biological material – by design, by manufacturing quality and by pressure washdown. They are suited to stainless steel or plastic enclosures/cabinets for machine controls or power management and are vibration resistant for vehicle or machinery applications. Sealing is with red or blue FDA conforming silicone washers and “O” rings – locking is by means of SW13 style insert to ensure easy cleaning.
We have noticed that in the past thirty years or so electronic devices have almost completely replaced electrical controls and yet the type and style of housing have remained remarkably constant through that time. Looking at housings for these electronic assemblies the trend has been that security needs have grown to accommodate the more sophisticated controls and their associated risk of data theft, which has become a factor with digital equipment that simply was not there in the past. In addition, the internal equipment itself is more vulnerable to physical damage from unauthorised access, so that today there is a greater need than ever for small quarter turns, special coded locks or keys, concealed hinges, gasket profiles in small sections for boxes and small enclosures, or in large sections for bigger cabinets.
www.fdbonline.co.uk Components in Electronics April 2023 31
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