Why use shackles

In particular, inspect shackles carefully for any signs of bending, warping or stretching, which may indicate that the shackle is not coping sufficiently well with the load forces being placed on it. Bent shackles tend to be a sign of excessive side-loading forces, which can ultimately lead to catastrophic failure particularly of D-shackles , while distorted or fractured pins should be replaced immediately.

Learn more about shackles here. Or visit our frequently asked questions surrounding shackles and their application. Copyright Ranger Shackles Explained Shackles are U-shaped pieces of metal with a pin along the non-curved side. Design Factor of Stronger than carbon steel. Can achieve an equivalent WLL as carbon shackles in a smaller product design. Available in round pin, screw pin, bolt type. The galvanization process adds a thin layer of zinc oxide to protect against rust and corrosion.

Stainless steel shackles provide the greatest corrosion resistance and are ideal for marine applications. Varying grades of stainless steel can be used to protect the shackle against salt water or chemical environments.

Shackles made from stainless steel are typically more expensive than galvanized shackles. Some types of shackles are engineered to handle some form of side loading.

For these types of shackles, there will be a reduction to the Working Load Limit as specified by the manufacturer. Chain shackles are not recommended for side loading, as it could permanently twist or deform the bow of the shackle. When using a shackle with multiple sling legs, the sling legs should rest against the body of the shackle, not the pin.

The angle of loading affects the stress in the shackle, so as the horizontal angle decreases, the stress increases in the shackle—see below:. When it comes down to it, the most important part of determining what type of shackle to use is to have a complete understanding of:. From there, you can partner with a reputable rigging shop, or rigging equipment supplier, to determine the best type of shackles to use for your application.

At Mazzella, we partner with all of the major rigging hardware suppliers in the industry. We can quote and fabricate sling assemblies or get you the individual slings and hardware that you need to put them together yourself. We offer a full inventory of hooks, shackles, and other rigging hardware from the following manufacturers:. If you want to schedule a consultation, or receive a quote for your next lifting project, contact one of our Lifting Specialists today.

We partner with all the major rigging hardware suppliers in the industry. We stock and distribute all types of shackles from several manufacturers, including:. Address SafetyLiftinGear. Tel: Fax: sales safetyliftingear. Vacancies Online Certification Sitemap Terms. Privacy Cookies Make A Payment. Social Media. Twitter Facebook Youtube. Ecommerce Website by Designer Websites Ltd. When using these shackles for multiple-leg industrial lifting, you have to factor in a relevant reduction in their working load limit.

Although they look similar to anchor shackles, the O-shaped body of bow shackles is much larger. Stainless steel and titanium are the most popular materials for manufacturing these bad boys.

Bow shackles are more suitable for shackling as they can handle multiple loads from different angles. Various industries like manufacturing, construction, shipping, oil and gas, and heavy engineering use these shackles for lifting heavy loads.

Twist Shackles are one of the special types of lifting devices. They are very similar to D-shaped Shackles, but their body has a degree twist. They are made from stainless steel to ensure higher strength.

Thanks to their shape, the attachment points remain perpendicular to each other. As there is no torque, twist Shackles make rotating loads safer and more efficient. They are ideal for reducing kinks when lifting or rigging heavy loads. You can find them on assembly lines or in shipping yards, where rotating the load is necessary.

One of the most popular Crosby shackles, the wide-body shackles are specifically designed to attach synthetic slings like wire ropes , web slings, and round slings. The wide-body shape helps improve the service life of synthetic slings and prevents kinking.

Usually made from galvanized steel, they are suitable for industrial applications involving tie-downs and rigging. All types of shackles come with either a screw pin or a bolt-type pin. Pins provide a secure connection between the load and the shackle body. Based on the type of pins, you can find two types of shackles. Made from steel alloys, bolt-pin shackles come with a split pin that holds a nut and bolt together.

They are not easy to set up as the bold type pin comes with three-four components. However, they offer highly secure connections, making these shackles more suitable for lifting applications involving permanent attachments.