Overview
ISO 10567:2007 - "Earth-moving machinery - Hydraulic excavators - Lift capacity" specifies a uniform method for calculating and verifying the lift capacity of hydraulic excavators. It covers both the hydraulic lift capacity (boom, arm, bucket cylinder limits) and the machine tipping limits, and establishes the rated lift capacity as defined in ISO 7135. The standard defines terminology, calculation grids, machine configuration for calculations, and verification testing procedures to produce reliable rated lift capacity charts.
Key Topics
- Scope and definitions:
- Precise terms such as lift point (LP), lift-point height (LPH), lift-point radius (LPR), tipping load, rated tipping load (75% of tipping load) and rated hydraulic lift capacity (87% of smaller of boom or arm hydraulic lift capacity).
- Calculation method:
- Calculations performed on a grid over the working range (grid spacing: 0.5 m, 1 m or 2 m) with origin at the axis of rotation and ground reference plane (GRP).
- Tipping load calculations over side and end of undercarriage, considering worst-case positions for asymmetrical undercarriages.
- Hydraulic lift capacity calculations for boom, arm and bucket cylinders at each grid intersection.
- Considerations for adjustable intermediate booms, bucket attitude, maximum/minimum lift-point radii, and exclusion rules (e.g., positions where the load line projects through the bucket).
- Verification testing:
- Two test-site options: dead-weight (immovable) and live-weight (movable) arrangements.
- Required instrumentation and accuracy in accordance with ISO 9248: load cell or known weights, hydraulic pressure monitoring, dimensional measurement tools and perpendicularity checks.
- Specified machine test conditions: operator mass (75 kg), full fuel, specified fluid levels, counterweight and attachments per manufacturer, tyre/track tensions adjusted.
- Output:
- Procedures to validate calculated values and produce a rated lift capacity chart (examples in Annex A).
Applications
ISO 10567:2007 is used by:
- Excavator manufacturers to produce certified load-rating charts and to ensure consistent lift-capacity declarations.
- Test laboratories and certification bodies for verification testing and validation of lift-capacity calculations.
- Fleet managers, rental companies and equipment buyers to compare safe lifting capacities across models.
- Safety engineers and regulatory authorities to assess overturning risk and safe working limits for hydraulic excavators.
Keywords: ISO 10567:2007, lift capacity, hydraulic excavators, tipping load, rated lift capacity, verification testing, load chart.
Related Standards
- ISO 7135 - Terminology and commercial specifications for hydraulic excavators (defines rated lift capacity).
- ISO 9248 - Units, measurement accuracies and instrumentation accuracy requirements used in verification testing.
