Overview
ISO 12117-2:2008 is an international standard developed by the International Organization for Standardization (ISO), focusing on earth-moving machinery roll-over protection. This standard provides laboratory test procedures and performance requirements for roll-over protective structures (ROPS) used on hydraulic excavators with an operating mass over 6 tonnes (t) and less than 50 t. ROPS are critical components designed to safeguard operators in the event of a machine roll-over, ensuring a minimum crush protection zone around a seat-belted operator.
ISO 12117-2:2008 applies to excavators as classified by ISO 6165 and covers standard earth-moving work, material handling, demolition, and forestry applications where the risk of roll-over is present. However, it does not apply to excavators fitted with elevating cab risers. By following this standard, manufacturers and testing organizations can ensure consistent and reliable evaluation of ROPS effectiveness under static loading conditions.
Key Topics
- Scope and Applicability: Specifies requirements for ROPS used on hydraulic excavators over 6 t, including those used with various attachments for tasks such as material handling and forestry.
- Testing Procedures: Describes laboratory methods to evaluate the load-carrying capacity of ROPS under static lateral, longitudinal, and vertical loading conditions.
- Performance Requirements: Prescribes minimum structural and energy absorption criteria to ensure ROPS provide sufficient operator protection without excessive deformation.
- Load Application Guidelines: Details the setup, positioning, and measurement zones for applying forces and measuring deflection during testing.
- Acceptance Criteria: Provides criteria related to deflection limits, structural integrity, and energy absorption to determine ROPS conformity.
- Instrumentation and Reporting: Stipulates required measurement accuracy, the inclusion of relevant structural components in testing, and required test report contents.
- Marking and Labelling: Outlines guidelines for ROPS identification and labelling to confirm compliance with ISO 12117-2:2008.
- Operator’s Manual Requirements: Specifies the need for clear operating instructions regarding ROPS inspected and tested according to this standard.
Applications
- Earth-Moving and Construction: Ensures hydraulic excavators, especially those above 6 t, meet robust safety standards on construction and earth-moving sites, reducing operator risk.
- Material and Object Handling: Applies to excavator-based machines in activities involving heavy lifting, such as demolition, magnet handling, log-handling, and forestry, where roll-over potential is significant.
- Industry Best Practices: Aids manufacturers and safety inspectors in verifying that protective systems meet international safety benchmarks, supporting equipment certification and regulatory compliance.
- Operator Safety Assurance: Provides end-users and fleet operators with confidence in equipment safety, minimizing workplace injuries in hazardous operations.
- Design and Quality Control: Enables equipment manufacturers and ROPS designers to standardize product development and testing, aligning with recognized international guidelines.
Related Standards
- ISO 12117-1: Earth-moving machinery - Laboratory tests and performance requirements for protective structures of excavators - Part 1: Tip-over protective structures (TOPS) for compact excavators.
- ISO 6165: Earth-moving machinery - Basic types - Identification, terms, and definitions.
- ISO 3164: Earth-moving machinery - Laboratory evaluations of protective structures - Specifications for deflection-limiting volume.
- ISO 5353: Earth-moving machinery, tractors and machinery for agriculture and forestry - Seat index point.
- ISO 9248: Earth-moving machinery - Units for dimensions, performance and capacities, and their measurement accuracies.
By adhering to ISO 12117-2:2008, organizations demonstrate commitment to equipment safety and operator protection, supporting risk management goals and compliance with internationally recognized earth-moving machinery standards. Incorporating this standard is essential for those involved in the manufacture, supply, and operation of hydraulic excavators in varied and challenging environments.