The major safety standard that applies to conveyors used to move unit loads is EN619; Continuous Handling Equipment and Systems – Safety and EMC Requirements for Equipment for Mechanical Handling of Unit Loads. It stipulates that pinch areas must be no more than 5 mm and that the working areas between conveyed unit loads and rollers, where there is a risk of crushing and shearing, shall be safeguarded e.g. by panelling or plate covers.
There are additional safety standards for the conveyor’s moving parts:
- The minimum safety distances to prevent upper and lower limbs from reaching hazard zones shall comply with EN/ISO 13857.
- The minimum gaps to avoid the crushing of human body parts shall comply with EN 349.
- The minimum safety distances between the conveyor and elements of the building shall comply with EN/ISO 14122-2.
If just one of the above-mentioned requirements is not fulfilled, shields or protective devices must be fitted to safeguard against contact with moving parts. These devices must comply with EN/ISO 14120.
The conveyor’s electrical equipment shall comply with EN 60204-1, Electrical equipment of machines – Part 1: General requirements.
As safety standards published by the International Organization for Standardization (ISO) are revised periodically, we would suggest that you download the most recent from your national standards organisation.
In the USA, the OSHA standard for cargo handling gear and equipment “1917.48 – Conveyors” applies to conveyors used to move unit loads.