Overview - ISO 21873-1:2015 (mobile crushers terminology & commercial specs)
ISO 21873-1:2015 defines terminology and commercial literature specifications for mobile crushers used in building construction - machines that crush rocks or reprocess construction materials and can be relocated between worksites. The standard applies to self‑propelled, lorry (truck) mounted, and semi‑trailer mounted mobile crushers. It explicitly excludes fixed (stationary) crushers and large mining‑type movable crushers. ISO 21873-1 complements Part 2 (safety requirements) of the ISO 21873 series.
Key topics and technical requirements
The standard standardizes terms and the data that must appear in commercial literature so buyers and users can compare machines reliably. Main topics include:
- Core terminology (e.g., mobile crusher, feed hopper, feed device, crushing device, discharge device, control system, prime mover, transmitting device, travel device).
- Component data requirements for commercial documentation:
- Prime mover (engine/motor type, power, revolutions, fuel/tank capacity)
- Feed hopper (type, dimensions, struck capacity - Annex B provides a volume method)
- Feed device (types and drive)
- Crushing device details and types: jaw, horizontal shaft impact (HSI), cone, vertical shaft impact (VSI); net feed opening, operating revolutions, drive type
- Discharge device (type, size, discharge height, drive)
- Travel device specifications for crawler, truck, and semi‑trailer chassis (track/wheel dimensions, axle loads, ground contact pressure - ISO 16754 referenced)
- Mass and dimensions in operating and transporting modes, ground clearance, tank capacities
- Auxiliary systems: dust suppression, magnetic separators, bypass and return conveyors
- Normative and informative annexes (examples of structure/dimensions, hopper volume calculation, methods for defining net feed opening)
Practical applications and users
ISO 21873-1 is useful for:
- Manufacturers preparing product brochures, technical data sheets and ensuring consistent specification language
- Procurement teams and rental companies comparing models and making purchase/lease decisions
- Site managers and equipment planners verifying machine suitability for worksite constraints and transport
- Engineers and technical writers who produce specifications, datasheets, and conformity documentation
- Standards bodies and regulators referencing consistent terminology
Using ISO 21873-1 improves clarity in technical specifications, enables fair comparison of mobile crushers, and reduces ambiguity in sales and procurement documentation.
Related standards
- ISO 21873-2 - Mobile crushers: Safety requirements
- ISO 16754:2008 - Average ground contact pressure (referenced)
- IEC 60034-1 - Electric motor specification (referenced in motor data)
Open preview (PDF)Building construction machinery and equipment — Mobile crushers — Part 1: Terminology and commercial specifications
