Crane and Hoist Rigging Safety
This course focuses on crane and hoist rigging safety, covering procedures, equipment, and devices used below the hook in lifting operations. Participants will explore rigging fundamentals, including sling types (wire rope, chain, metal mesh, synthetic), hitch configurations (vertical, bridle, basket, choker), and below-the-hook devices such as lifting magnets. The course emphasizes critical safety factors, including load capacity calculations, sling angle effects, inspection protocols, and proper planning procedures. Learners will gain essential knowledge of load stability, weight distribution, electrical hazards, and regulatory requirements. This training provides foundational expertise for safe rigging operations while highlighting the importance of qualified personnel and proper equipment maintenance in crane lifting activities.
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Course Details
Learning Objectives
By the end of this course, you will be able to:
- Define and describe common types of “below-the-hook” devices.
- Describe what a magnetic lifting device is, the two main types, and how they are typically used.
- Identify common hazards and best practices associated with magnetic lifting devices.
- Define and describe rigging and slings.
- State the importance of rigging to crane operations.
- Identify the different types of sling materials.
- Describe the different types of sling hitches.
- Identify guidelines for safe rigging including sling angle and load balancing.
- Describe inspection guidelines for wire rope, chains, and hooks.
- Identify guidelines for rigging storage.
Specs
Frequently Asked Questions
What OSHA regulations are related to crane and hoist rigging?
Several OSHA regulations govern crane and hoist rigging, including OSHA’s standards for overhead and gantry cranes and materials handling and storage slings. For comprehensive details, refer to OSHA’s Safety and Health Topic page on Crane, Derrick, and Hoist Safety.
What are some of the factors that influence the safety of rigging?
Key factors affecting rigging safety include the type of sling used, the hitch method, sling angle, load edge sharpness, load capacity, and the stability of the load. Ensuring these elements are correctly managed is crucial for safe rigging practices.
What materials might a sling be made of?
Slings in rigging are commonly made from materials such as wire rope, chain, metal mesh, and synthetic fibers. Each material offers different strengths and flexibility suited to various lifting needs.
What are some common kinds of hitches?
Common rigging hitches include vertical, bridle, basket, choker, and endless slings. Each hitch type is used based on the lifting requirements and load conditions.
What is a load capacity chart, and why is it important?
A load capacity chart displays the load capacities of different types of slings, hitches, and sling angles. This chart helps ensure that rigging equipment is used within its safe operating limits.
Sample Video Transcript
Metal mesh slings are made up of small, connected metal rings or other shapes. This results in a mesh sheet that is flexible and has a large surface area. Metal mesh slings are widely used in metalworking and other industries where loads are abrasive, hot, or sharp. The wide surface area of the mesh prevents single-point stresses that would occur on wire, rope, or chains. Also, metal mesh grips the load firmly without stretching, and helps maintain a balanced load. To prevent the sling or load from being damaged, sometimes metal mesh slings are coated with rubber or plastic.
