Load Arrestors

Frequently Asked Questions

What is the purpose of load arrestors in lifting and material handling operations?

Load arrestors act as an independent backup system designed to stop a suspended load if the primary lifting or support mechanism fails. They are commonly used where falling loads could create a serious risk to personnel, equipment, or infrastructure below. Unlike standard lifting equipment, they remain inactive during normal operations and only engage during an abnormal event. This additional layer of protection can form an important part of a comprehensive risk management strategy for high-risk lifting applications.

How do secondary load arrest devices differ from standard lifting equipment?

Primary lifting equipment is responsible for raising, lowering and positioning loads, whereas secondary devices are designed solely to intervene if the main system fails. They are not intended to support routine lifting operations or replace correctly specified lifting gear. Instead, they provide a backup means of arresting movement and limiting the consequences of equipment failure. For critical operations, both systems should be considered together during planning and risk assessment.

What should be considered when selecting anchorage for load arrestors?

The anchorage structure must be capable of withstanding the forces generated when a falling load is arrested. It is important to evaluate the strength of the supporting structure, available clearance, connection compatibility and environmental conditions. Inadequate anchorage can compromise the effectiveness of the entire system, regardless of the arrestor's specification. Professional assessment is often recommended where loads are substantial or where structural suitability is uncertain.

How do I determine the correct load arrestor rated capacity for my application?

The rated capacity should always exceed the maximum weight of the load being protected, including any attachments, tools, containers or ancillary equipment connected to it. Consideration should also be given to potential dynamic forces that may occur during an arrest event. Selecting equipment based solely on the nominal load weight can lead to under-specification. A full assessment of the lifting arrangement and operational conditions helps ensure the device is appropriately matched to the application.

Why is load arrestor certification important for industrial safety programmes?

Certification provides evidence that equipment has been tested and assessed against relevant performance requirements and standards. It helps duty holders demonstrate that appropriate measures have been taken when selecting safety-critical equipment. Proper documentation also supports inspection, maintenance and asset management programmes throughout the equipment lifecycle. In regulated environments, maintaining accurate certification records can be just as important as selecting the correct device in the first place.