What Are Manhole Cover Lifters?
Manhole cover lifters are machines used to safely and efficiently open manhole covers.
They allow for the easy lifting of covers that are dangerous to handle manually due to their weight. The operating principle involves hooking the cover, lifting it by operating a lever, and stabilizing it with a locking mechanism. They are used in various locations such as sewers, electrical facilities, and gas installations, primarily aiding in inspection and repair work.
When using them, it’s important to accurately attach the hook and avoid lifting with excessive force. While they offer benefits such as reducing the weight of heavy covers and improving safety, there are drawbacks such as being expensive and requiring maintenance.