Overview of Electric Overhead Traveling (EOT) Cranes

In Overview of Electric Overhead Traveling (EOT) Cranes, you'll learn ...

• EOT crane types, components and CMAA service classifications
• Hoist types and selection factors
• EOT Crane structural design considerations
• Overhead crane power and control systems

Overview

Preview a portion of this course before purchasing it.

Credit: 6 PDH

Length: 96 pages

A crane is a machine that lifts, lowers and moves loads horizontally. An overhead crane, also known as a bridge crane, is a type of crane where the hook and line mechanism runs along a horizontal beam that itself travels on the two widely separated rails. This type of crane is often used inside of factory buildings and warehouses, where it runs along rails mounted on the two long walls. A gantry crane is similar to an overhead crane, but with a gantry crane the bridge carrying the trolley is rigidly supported on two or more legs moving on fixed rails embedded in the floor.

Overhead traveling cranes are also available in various configurations. The two main categorizations are top-running versus under-running bridge cranes and single-girder versus double-girder bridge cranes. Crane travel is directed by an operator, either manually or with a wired pendant station or wireless controls that guide the electric- or pneumatic-powered travel. Typical uses include multi-directional movement of materials through the production process, manufacturing support, transporting heavy items to and from storage areas, loading or unloading activities inside a warehouse or onto open trailers or railcars.

This 6-hr course presents an overview of electric overhead travelling cranes and discusses the mechanical aspects of appropriate selection, as well as civil, structural and electrical design parameters.

This course is suitable for mechanical engineers, electrical engineers, structural engineers, construction engineers, factory and workshop operators, supervisors, O & M professionals, facility managers, and estimators. No specific prerequisite training or experience is required.

Learning Objectives

Upon completion of this course, participants will be able to:

• Identify various types of overhead cranes.
• Describe the components and terminology of overhead cranes.
• Explain crane duty groups and service classifications, such as CMAA, HMI/ASME, FEM, and ISO.
• Identify various types of hoists, their applications, and their safety features.
• Describe the types of loads acting on the crane runway girder and the building structure.
• Explain methods of distributing power to overhead cranes, including festoon systems.
• Identify the types of NEMA motors and enclosures used for overhead cranes.
• Explain electrical grounding requirements under the NEC.
• Describe EOT crane control systems.
• Explain standard specifications covering mechanical, structural, and electrical requirements.
• Identify key crane inspection and testing requirements established by OSHA.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 30 questions. PDH credits are not awarded until the course is completed and quiz is passed.