TS ISO 7135

TS ISO 7135 is a terminology and commercial-specification standard for hydraulic excavators. It covers self-propelled crawler and wheeled hydraulic excavators, together with their equipment and attachments. Its purpose is to keep technical terms and the way commercial literature describes these machines consistent across the same product family.

Machine family in scope, and what is left out

The standard focuses on earth-moving machinery used in construction and excavation work. In general technical terms, “hydraulic” refers to the use of hydraulic systems to power the machine’s working motions, while “excavator” refers to the base machine used for digging, loading, trenching, and related material-handling tasks. The scope addresses common components of these machines and explicitly does not include terms or commercial specifications that are specific to walking excavators.

What commercial specifications mean here

Commercial specifications are the data points typically presented in catalogues, brochures, quotations, and similar product literature. In general engineering practice, they help describe size, performance-related characteristics, equipment compatibility, working geometry, and related attributes in a way that can be compared consistently. This standard supports that consistency by defining the vocabulary used to describe hydraulic excavators and their attachments.

From a broader technical perspective, hydraulic excavators are versatile machines because boom, arm, bucket, and upper-structure movements can be combined with different attachments for varied tasks on construction and infrastructure sites. Standardized terminology reduces ambiguity when manufacturers, contractors, and operators refer to the same machine concepts.