What Is A Theatrical Shackle?

What are shackles and what are they used for?

A shackle is a u-shaped, load-bearing connecting device designed to be used with a removable pin. Shackles can be used in a number of different rigging and load securement applications to connect different types of lifting slings, chain, or rope to an object or to each other.

What is a sling shackle?

Web sling shackles are designed to connect synthetic web and round slings to eye bolts and other lifting hardware.

What are rigging shackles?

Shackles connect slings, rigging hardware, chain, lifting devices, load cells, and other items to loads being lifted or pulled.

What are the types of shackle?

In fact, there are many different types of shackles to choose from – examples include:

  • Bow shackles. Recognisable by their ‘O’ shape, bow shackles are commonly used on multi-leg slings.
  • Dee shackles.
  • Green pin shackles.
  • Safety pin shackles.
  • Screw pin shackles.
  • Stainless steel shackles.
  • Piling shackles.

What is the difference between bow shackle and D shackle?

Bow shackles and anchor shackles are terms that are often used interchangeably, as both names refer to a shackle with a larger, rounded “O” shape look. A D-shackle is narrower than a bow or anchor shackle and generally has a threaded pin or pin close. The smaller loop is designed to take high loads primarily in line.

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How strong is a shackle?

Some shackles are not built to withstand sustained loads and this is very dangerous in slacklining. We typically see loads in the 1,000 – 5,000 lbf range and to have a piece of metal explode with this much energy behind it can be extremely damaging and even fatal.

How do you calculate shackle capacity?

The formula used to find the Safe Working Load (SWL) of shackles is Diameter of shackle2 x 3. As determined by the vector diagram, the SWL in this example is 5.1 tons. Dividing 5.1 by 3 gives 1.7. The square root of 1.7 is 1.30″.

What are the three basic shackle body design types?

Lifting shackles of all body types are available in three basic pin designs:

  • Screw Pin Shackles.
  • Bolt Type Shackles.
  • Round Pin Shackles.

How many different types of lifting slings are there?

Primarily, there are three types of slings – web slings, wire rope slings, and chain slings.

What is a green pin shackle?

Green Pin Shackles feature a hot dip galvanised body and a zinc plated pin. The pin is zinc plated to make it easier to paint with the Van Beest trademark Green colour. Green pin certified shackles are much stronger than standard galvanised shackles due to a narrower jaw width and thicker pin diameter.

What is the difference between a shackle and a clevis?

Shackles and clevises are U-shaped mechanical couplers closed by a pin or bolt. Shackles are primarily used in construction, rigging and lifting. A clevis is used in less demanding applications such as farming and towing.

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What is the most common misuse of rigging?

With rigging hardware, what we’re talking about is items like hooks, links, shackles, turnbuckles, eye bolts, and hoist rings. The most common problems tie back to misuse and abuse and lack of inspection. Some of the most common issues we see are: Hooks with missing or broken latches.

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