ISO 7448:2024

Overview

ISO 7448:2024 - Machinery for forestry - Machine-fed woody biomass reduction chippers, grinders, and shredders - Vocabulary provides a standardized vocabulary, illustrations of machine configurations, and a component nomenclature for machine‑fed woody biomass reduction equipment used in forestry. The scope covers machine‑fed drum chippers, disc chippers, screw chippers, horizontal grinders, tub grinders, and shredders. Manually fed chippers, grinders, and shredders are explicitly excluded.

This vocabulary standard establishes consistent terms for describing machine‑fed woody biomass reduction equipment, supporting clear communication across design, manufacturing, procurement, regulation, and operational documentation.

Key topics

• Defined terms and definitions for general concepts (e.g., woody biomass), base machines (chipper, grinder, shredder), cutting systems, infeed and discharge systems, auxiliary components, dimensional characteristics, and configurations.
• Cutting systems vocabulary: chipping, grinding, and shredding systems; cutting, grinding and shredding elements; anvils, screens.
• Infeed terminology: horizontal infeed, tub infeed, hopper infeed, feed rollers, infeed conveyors, chipper infeed winch, tub and hopper definitions.
• Discharge terminology: discharge system, discharge chute, discharge conveyor, discharge fan, discharge auger.
• Dimensional characteristics and nomenclature: operating and transport height/width/length, infeed opening dimensions, chipping/grinding/shredding system diameters, tub size.
• Configurations and mobility: towable, self‑propelled, stationary; power source distinctions (dedicated, combined, external).
• Illustrative annexes: Annex A and B include dimensional diagrams and component nomenclature for chippers, grinders, and shredders to support consistent technical drawings and specifications.

Applications

ISO 7448:2024 is a practical reference for:

• Creating consistent technical documentation, equipment data sheets, and user manuals for machine‑fed woody biomass reduction chippers, grinders, and shredders.
• Specifying equipment requirements in procurement and contract documents for forestry operations, biomass processing, and land‑clearing projects.
• Supporting product design and interoperability by aligning terminology across engineering, manufacturing, and regulatory teams.
• Informing training materials, safety procedures, and inspection checklists where precise component and dimension terms are needed.
• Harmonizing communication between equipment manufacturers, forestry contractors, researchers, and standards bodies.

Who would use this standard

• Forestry machinery manufacturers and designers
• Technical writers and documentation teams
• Procurement officers and specifiers
• Safety and compliance auditors
• Forestry contractors and equipment operators
• Standards committees and regulatory agencies

Related standards (if applicable)

ISO 7448 cites and aligns terminology with other ISO documents used in forestry machinery standardization, for example ISO 16559:2022, ISO 6814:2009, and ISO 11839:2021. Users should consult these documents for related terminology and context.

Keywords: ISO 7448:2024, machine-fed woody biomass reduction, chippers, grinders, shredders, forestry machinery vocabulary, infeed, discharge, cutting systems, dimensional characteristics, equipment nomenclature.