Are You Planning to Rent a shackle? Do You Know the Types and Characteristics?

Shackles are a familiar component, especially in the fields of lifting and load testing, as they connect slings, wire ropes, chains, or other lifting equipment.

In general, shackles are distinguished based on the type of pin, namely Screw Pin Shackle, Bolt Type Shackle, and Safety Pin Shackle. Each of these types has different characteristics, advantages, and applications.

What is a Shackle and What is its Function?

Simply put, a shackle is a U-shaped or bow-shaped component in rigging gear that is equipped with a pin as a lock. Its function is to connect loads to lifting equipment safely. Shackles are widely used, especially in the construction, oil & gas, maritime, and load testing industries.

The selection of shackle types should not be arbitrary as it is directly related to the working load limit (WLL) and operational conditions in the field.

Various types of shackles and their respective characteristics:

1. Shackle Screw Pin

A type of shackle that uses a threaded pin without additional locks. This type of shackle is known for its ease of installation and removal, making it commonly used for temporary work or applications requiring quick mobilization. However, due to the lack of additional safety features, screw pin shackles are not recommended for applications with high vibration or dynamic loads, as the pin may loosen over time.

2. Bolt Type Shackle

Bolt type shackles use bolt-shaped pins that are locked with nuts and cotter pins, providing a higher level of security than screw pins. This type of shackle is designed for heavy lifting applications and long-term use. With a stronger locking system, the risk of the pin coming loose is very small, so bolt type shackles are widely used in permanent rigging, heavy lifting, and work conditions with high safety standards.

3. Shackle Safety Pin

The shackle safety pin is the type of shackle with the highest level of safety because it is equipped with an additional locking mechanism. This type is used in extreme working conditions, such as areas with high vibration, intense load movement, or offshore environments. Despite its higher price and installation complexity, the shackle safety pin provides maximum reliability and is often the preferred choice for critical lifting.

Conclusion: Which shackle is most suitable for your project?

The selection of shackles must be tailored to:

• Type of load (static or dynamic)
• Duration of use
• Working environment conditions
• Required lifting capacity

For temporary work, screw pin shackles may be an option. However, for heavy loads and high-risk work, bolt type shackles or safety pin shackles are much more recommended for safety reasons.

Your Shackle Needs Solution

If you need to rent shackles with a capacity of up to 150 tons for lifting, load testing, or other industrial projects, Goutama Weight & Testing is ready to help with equipment that has been tested and meets safety standards.

Contact Goutama Weight & Testing now for technical consultation and safe, accurate, and reliable shackle solutions.

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