Anchors are an important assembly detail used in repair and construction works. They are the basis for the stable fastening of particular elements, both structural and non-structural. The range of anchors is fairly broad, and when we want to use a proper fastening system we should know which anchors are intended to what fastening types. What mechanical anchors are distinguished?

What are mechanical anchors used for?

The primary task of anchors is to connect different elements with each other to ensure their stability, regardless of their material type. The anchors are used, first of all, in building projects, as no building could be raised without the support of anchorage systems. They are also used in the assembly of various bearing capacity elements, such as beams, pillars or supporting brackets. They are characterised by high strength and may have different expanding elements (sleeves or bands).

Besides that, mechanical anchors also include concrete anchorage solutions (, both cracked and not cracked. They are optimal on a strong and solid substrate. After all, the ease and quickness of their assembly are their big advantages, but particular anchors differ among one another not only in their outer appearance, but also in their intended application, so it is good to know which anchors are suitable for which applications.

Types and application of sleeve anchors

This type of anchor can be divided into several subtypes. The first one includes standard sleeve anchors, which are most commonly used in small domestic and repair works, where the obtained fastenings are intended for small bearing loads. With this type of anchor it is fast and easy to mount heaters, satellite aerials or even garage doors.

Another type is the sleeve anchor for high loads, provided with a bolt with a hexagonal head, a rod with a nut, or a bolt with a tapered head. These anchors are usually used in the assembly of shelves, industrial gates or of larger steel structures. They are usually selected when resistance to fire and high temperatures is necessary.

The last type is sleeve anchors with a female thread. They are most often used in pipeline systems, ventilation, sprinkler systems, or in cable or wire passages. They can be used in cracked and uncracked concrete, as well as in reinforced concrete. Their assembly is very easy by means of a hammer.

What are segmented anchors used for?

In this case we are dealing not with one anchor but with several types; depending on mechanical properties, we can distinguish anchors with a bolt, with a rod and a nut, with a closed or opened hook, with a bolt and a flange, or with a rod, a nut and a flange. Their application spectrum is very broad, also with regards to substrate types, as, beside various types of concrete, such as hollow blocks, concrete blocks or concrete panels, they may also be used for assembly works in stone. These anchors are used in various applications, such as the assembly of roll doors, fire-proof doors, safety grids, or steel structures and brackets of water mains or cabling systems.

The application of through banding anchors

These are anchors of a special type, intended for use in demanding fastening types and those which are exposed to adverse conditions – including atmospheric. For this reason they necessarily have to be stainless and anti-corrosive. They are most often used in the assembly works of facades, railings, steel structures or balustrades. They can also be used in personal lifts, platforms and public seats. Besides concrete, natural stone can also be used as the substrate.

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