ISO 7136:2006

Overview

ISO 7136:2006 - Earth-moving machinery - Pipelayers - Terminology and commercial specifications defines standardized terminology, component nomenclature, dimensional codes, and the content of commercial literature for self‑propelled pipelayers and their equipment. Applicable to crawler and wheeled pipelayers (including rotating pipelayers and side‑boom attachments), this International Standard sets the baseline for technical descriptions, measurements and published specifications in SI units.

Key topics

• Terms and definitions: precise definitions for pipelayer types (pipelayer, rotating pipelayer, side boom, base machine, equipment, attachments, counterweights, etc.), aligned with ISO 6165.
• Nomenclature and components: standardized names and illustrations for boom, load hoist, load blocks, counterweights, track shoes, rotating upper structure and other parts.
• Dimensions and codes: standardized dimensional references such as W1 (overall width without counterweight), WW2/WW3 (width with counterweight retracted/extended), WW4 (load overhang distance), LL1 (boom length), H3/H5/HH3/HH4/HH5 (shipping height, grouser height, counterweight clearances, maximum hook height).
• Commercial literature specifications (SI units): required product data to appear in brochures and technical sheets, including:
  • Engine: manufacturer/model, ignition type, displacement, net power (ISO 9249), torque, cooling, fuel, electrical system.
  • Transmission and final drives: type, gear counts, maximum travel speed (ISO 6014).
  • Brakes & steering: types and actuating systems.
  • Hydraulic system: pump types, relief pressures, flow, hydraulic motors.
  • System fluid capacities, tyres, undercarriage details (track gauge, shoe width, ground contact area).
  • Pipelayer mechanisms: counterweight masses, drum/rope specs, boom and hoist characteristics.
  • Load capacity chart: rated loads at designated load overhang distances (WW4).
  • Operating and shipping masses: specified per ISO 6016.

Applications and users

ISO 7136:2006 is practical for:

• Manufacturers preparing product literature, datasheets and specification sheets for pipelayers.
• Procurement teams and fleet managers comparing pipelayer models by standardized ratings (load charts, masses, dimensions).
• Design and R&D engineers ensuring consistent nomenclature when designing equipment or retrofits.
• Technical authors and marketers developing brochures or compliance documentation.
• Regulators and standards bodies referencing uniform definitions for safety, transport and interoperability.

Practical benefits include clearer vendor comparisons, reduced ambiguity in contracts and improved safety/transport planning through consistent dimensional and mass data.

Related standards

• ISO 6165 - Basic types, identification and terms (earth‑moving machinery)
• ISO 6016 - Methods for measuring masses (operating/shipping mass)
• ISO 6014 - Determination of ground speed
• ISO 9249 - Engine test code - Net power
• ISO 6746 (all parts) - Definitions of dimensions and codes

Keywords: ISO 7136:2006, pipelayers, earth‑moving machinery, terminology, commercial specifications, load capacity chart, operating mass, shipping mass, pipelayer dimensions.