This document specifies general safety requirements for self-loading mobile concrete mixers (here-after referred to as "SLMs") as defined in ISO 18650-1:2021, with rigid or articulated wheeled chassis.
This document applies to SLMs which are designed for front or rear loading and can be provided with a slewing and/or tilting frame where the rotating drum and the self-loading equipment (lift arms and bucket) are mounted on. SLMs can also be fitted with accessories such as water dosing means and a weighing system.
This document is not applicable to the following:
- machines designed primarily for earth moving, such as loaders or dumpers (see applicable parts of the EN 474 series);
- truck mixers (see EN 12609).
This document deals with all significant hazards, hazardous situations and events relevant to SLMs, whether used as intended and under conditions foreseen or under conditions of misuse reasonably foreseeable by the manufacturer (see Annex A).
This document does not provide performance levels required for safety related functions of control systems.
NOTE A document providing detailed description of safety functions for SLMs and related performance levels required is under development.
This document does not address hazards that can occur:
- during manufacture;
- when using SLMs on public roads, where specific local road regulations can apply;
- when operating in potentially explosive atmospheres.
This document does not address hazards specifically related to:
- SLMs designed to operate with varying levels of autonomy or when SLMs have embedded safety-systems with fully or partially self-evolving behaviour or logic using machine learning approaches, including collaborative applications;
- SLMs when intended to be connected to the internet or to an external network or device that communicates with it (protection against corruption).
This document is not applicable to SLMs manufactured before the date of its publication.