ISO 16754:2008
(Main)Earth-moving machinery - Determination of average ground contact pressure for crawler machines
Earth-moving machinery - Determination of average ground contact pressure for crawler machines
ISO 16754:2008 specifies a uniform method for calculating the average ground contact pressure of self-propelled and towed crawler (track-laying) earth-moving machines, as defined in ISO 6165, on soft surfaces with empty equipment or attachment. The average ground contact pressure value is used only for comparing different machine models. Actual ground contact pressure values under operating conditions will vary depending on load, position of the centre of gravity, terrain, track shoe type and size, and surface conditions. Alternative methods for determining ground contact pressure could apply to some specific machine families.
Engins de terrassement — Détermination de la pression moyenne de contact au sol des engins à chenilles
L'ISO 16754:2008 spécifie une méthode uniforme pour calculer la pression moyenne de contact au sol des engins à chenilles automoteurs et remorqués, tels que définis dans l'ISO 6165, sur une surface plane, sans équipement ni accessoire. La valeur de la pression moyenne de contact au sol est uniquement utilisée pour comparer les différents modèles d'engins. Les valeurs de la pression moyenne de contact au sol réelles, dans des conditions dynamiques, varieront selon la charge, la position du centre de gravité, le terrain, le type et la taille des patins et les conditions de surface.
General Information
- Status
- Published
- Publication Date
- 10-Jun-2008
- Technical Committee
- ISO/TC 127/SC 1 - Test methods relating to safety and machine performance
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 09-Aug-2025
- Completion Date
- 13-Dec-2025
Overview
ISO 16754:2008 - Earth‑moving machinery - Determination of average ground contact pressure for crawler machines - specifies a uniform method to calculate the average ground contact pressure of self‑propelled and towed crawler (track‑laying) earth‑moving machines (see ISO 6165). The calculated value is intended for comparing different machine models on soft surfaces with empty equipment or attachment, not for predicting exact in‑service pressures.
Key topics and requirements
- Scope and purpose: Method applies to crawler machines on soft surfaces with empty attachments and is for comparison only; actual in‑service pressures vary with load, centre of gravity, terrain, track shoe type/size and surface conditions.
- Input parameters: The calculation uses operating mass (m), number of tracks (n), track shoe width (W4), crawler base (L2) and overall crawler length (L6). Units are defined in the standard (mass in kilograms, dimensions in millimetres; result in kilopascals).
- Calculation: ISO 16754 provides a formula that combines these parameters with gravity (9.807 m/s²) and includes an allowance for some track penetration into the supporting soil (increase in support area). The standard also gives a method to determine L6 from crawler geometry where applicable (conditions include a minimum angle α).
- Configuration and measurement rules: Machines must be in the manufacturer’s standard configuration. References to ISO 6746‑1 define dimensional terms (crawler base, overall crawler length, track shoe width) and ISO 6165 defines machine types.
- Limitations and notes: Alternative methods may be appropriate for some machine families; the average ground contact pressure is comparative only.
Applications and users
- Equipment manufacturers use ISO 16754:2008 to publish comparable ground contact pressure data across product lines and support product specifications.
- Test laboratories and certification bodies apply the method to produce consistent comparative measurements.
- Procurement professionals and fleet managers compare crawler machines for site suitability based on average ground contact pressure.
- R&D and engineering teams use the standard when designing undercarriage geometry to influence contact pressure.
- Note: For site‑specific soil compaction assessments or real‑world operating loads, on‑site measurement and more detailed analysis are required.
Related standards
- ISO 6165 - Basic types and definitions for earth‑moving machinery
- ISO 6746‑1 - Definitions of dimensions and codes (base machine)
- ISO 6016 - Measuring the masses of whole machines
- Referenced: SAE J1309 (related crawler performance and rating procedures)
Keywords: ISO 16754:2008, ground contact pressure, average ground contact pressure, crawler machines, track‑laying, crawler base, track shoe width, operating mass, earth‑moving machinery.
ISO 16754:2008 - Earth-moving machinery — Determination of average ground contact pressure for crawler machines Released:11. 06. 2008
ISO 16754:2008 - Engins de terrassement — Détermination de la pression moyenne de contact au sol des engins à chenilles Released:11. 06. 2008
Frequently Asked Questions
ISO 16754:2008 is a standard published by the International Organization for Standardization (ISO). Its full title is "Earth-moving machinery - Determination of average ground contact pressure for crawler machines". This standard covers: ISO 16754:2008 specifies a uniform method for calculating the average ground contact pressure of self-propelled and towed crawler (track-laying) earth-moving machines, as defined in ISO 6165, on soft surfaces with empty equipment or attachment. The average ground contact pressure value is used only for comparing different machine models. Actual ground contact pressure values under operating conditions will vary depending on load, position of the centre of gravity, terrain, track shoe type and size, and surface conditions. Alternative methods for determining ground contact pressure could apply to some specific machine families.
ISO 16754:2008 specifies a uniform method for calculating the average ground contact pressure of self-propelled and towed crawler (track-laying) earth-moving machines, as defined in ISO 6165, on soft surfaces with empty equipment or attachment. The average ground contact pressure value is used only for comparing different machine models. Actual ground contact pressure values under operating conditions will vary depending on load, position of the centre of gravity, terrain, track shoe type and size, and surface conditions. Alternative methods for determining ground contact pressure could apply to some specific machine families.
ISO 16754:2008 is classified under the following ICS (International Classification for Standards) categories: 53.100 - Earth-moving machinery. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 16754:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16754
First edition
2008-06-15
Earth-moving machinery —
Determination of average ground contact
pressure for crawler machines
Engins de terrassement — Détermination de la pression moyenne de
contact au sol des engins à chenilles
Reference number
©
ISO 2008
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Foreword
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ISO 16754 was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee SC 1,
Test methods relating to machine performance.
INTERNATIONAL STANDARD ISO 16754:2008(E)
Earth-moving machinery — Determination of average ground
contact pressure for crawler machines
1 Scope
This International Standard specifies a uniform method for calculating the average ground contact pressure of
self-propelled and towed crawler (track-laying) earth-moving machines, as defined in ISO 6165, on soft
surfaces with empty equipment or attachment.
The average ground contact pressure value is used only for comparing different machine models. Actual
ground contact pressure values under operating conditions will vary depending on load, position of the centre
of gravity, terrain, track shoe type and size, and surface conditions.
NOTE 1 Alternative methods for determining ground contact pressure could apply to some specific machine families.
NOTE 2 The calculation makes allowance for some penetration into the supporting soil surface and the resulting
increase in support area.
2 Normative references
The following referenced docume
...
NORME ISO
INTERNATIONALE 16754
Première édition
2008-06-15
Engins de terrassement — Détermination
de la pression moyenne de contact au sol
des engins à chenilles
Earth-moving machinery — Determination of average ground contact
pressure for crawler machines
Numéro de référence
©
ISO 2008
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Publié en Suisse
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Avant-propos
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normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
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Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
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internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO 16754 a été élaborée par le comité technique ISO/TC 127, Engins de terrassement, sous-comité SC 1,
Méthodes d'essais relatives aux performances des engins.
NORME INTERNATIONALE ISO 16754:2008(F)
Engins de terrassement — Détermination de la pression
moyenne de contact au sol des engins à chenilles
1 Domaine d'application
La présente Norme internationale spécifie une méthode uniforme pour calculer la pression moyenne de
contact au sol des engins à chenilles automoteurs et remorqués, tels que définis dans l'ISO 6165, sur une
surface plane, sans équipement ni accessoire.
La valeur de la pression moyenne de contact au sol est uniquement utilisée pour comparer les différents
modèles d'engins. Les valeurs de la pression moyenne de contact au sol réelles, dans des conditions
dynamiques, varieront selon la charge, la position du centre de gravité, le terrain, le type et la taille des patins
et les conditions de surface.
NOTE 1 Des méthodes alternatives pour déterminer la pression de contact au sol pourraient s'appliquer à certaines
familles de machines spécifiques.
NOTE 2 Le calcul prend en considération une certaine pénétration dans la surface porteuse du sol et l'augmentation
de la zone de contact qui en résulte.
2 Références normatives
Les documents de référence
...














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