(i) Closed shackle design
In it, one’s body has its shoulders raised to conceal as often length on the shackle as you can, leaving a tiny section which is hard to access for attacking. This is the design preferred in industries with high-security needs for example banking and courier.
However, the tiny clearance causes it to be difficult to lock lockers with concealed hasps and chain links.
(ii) Open design
The open design is really a diametric complete opposite of the closed design. The full or the majority of the shackle length is exposed, which causes it to become easy to loop the padlock through large bars, hasps, links, etc.
However, the longer exposure in the shackle causes it to become much easier to reduce, pick or break therefore the padlock may well not provide a advanced of security.
(iii) Semi-enclosed design
This can be a sandwich from the above two designs. The shackle length efforts to balance between security from attack as well as the flexibility of usage.
(iv) Long design
In it, the shackle is extra-long this also provides for locking extra-large lockers and noosing multiple hasps, chain links, fittings, and the like.
However, when targeted with a burglar, she has more than enough space to chop or break it open.
(v) Adjustable shackle padlock
This lock offers an innovative strategy to adjust the shackle length to fit your purpose beneficial. The padlock, however, needs regular lubrication to stop the shackle from getting jammed by rust, dirt, and grime.
For domestic uses including the school or gym lockers, where there can be a mid-level likelihood of attack, the semi-enclosed and adjustable shackle designs have proven to be the top. They provide a reasonable clearance to get a sweat-free locking inside concealed hasps however making it difficult for the burglar to achieve in his ways.
Padlock shackle material
Just like design, the purpose people will dictate the kind of padlock material that you need to choose, from both economic and security perspectives. Higher quality padlocks tend to be durable and harder to slice or pick. However, such materials can be extremely expensive and however tough these are, it can’t be economical to use them for many applications.
Molybdenum might well be the strongest with all the different padlock materials, best, and weather resistant. However, additionally it is very expensive in a way that it only makes sense people in industries for instance defense and nuclear.
A low abundance element, boron is progressed into a high-strength and lightweight material that finds utilization in several industrial applications. For use within padlock numerous boron variants are employed including;
Boron alloy that delivers high-level security. The shackle features supreme tensile strength and cut resistance.
Boron hardened steel and that is high-grade steel, heat-treated to resist any saw or bolt cutting or other tampering device. Its ultra-high strength is good for high-tech industries for example automotive.
Boron steel which is also strong and reliably safe, making these padlocks appropriate for heavy-duty industrial use.
(iii) Heavy-duty steel
This can be a type of hardened steel that’s attack resistant and durable. Steel is hardened by heat treating, enabling it to face up to severe human tampering. It is, therefore, safe for used in both high-security and general purpose applications like banking and homes. Most of these padlocks also provide weather resistive chrome or zinc coating.
Brass is lightweight and brittle and therefore it finds utilization in applications using a low likelihood of burglary, acting simply to lock the locker. However, brass is weather resistant, creating this lock suitable for outdoor use.
This is often a lightweight, cheap and low-security material. However, the lock is just not entirely worthless as possible the safest where there is often a risk of electrocution, given that security isn’t a serious problem.