ISO 1756:1975

Overview

ISO 1756:1975 - "Industrial trucks - Dimensions of stillages - Connection gauge" defines dimensional relationships between stillages (platforms or pallets with legs/feet) and the hand‑operated elevating trucks that handle them. The standard applies to stillages that are in direct contact with hand‑operated lift trucks and establishes the connection gauge to ensure mechanical compatibility and safe handling.

Key keywords: ISO 1756, industrial trucks, stillages, connection gauge, dimensions, hand‑operated elevating trucks, free height, minimum free width.

Key topics and requirements

• Scope: Covers the dimensional interface between stillages and hand‑operated elevating trucks - specifically the parts of the stillage that contact the truck.
• Free height (A / A1): Defines the required free height under the stillage deck (measured under the deck) so that the truck’s lifting elements can engage safely. The free height of the stillage is specified in relation to the maximum height of the truck intended to handle it.
• Minimum free width (B1): Defines the minimum clear width between the feet of the stillage, measured to accommodate the elevating frame or forks of the truck. ISO 1756 links these widths to the truck maximum widths defined in ISO 938.
  • Example dimension pairs given in the standard (millimetres):
    • Truck maximum widths (B max, per ISO 938): 470, 560, 620, 700
    • Corresponding stillage minimum free widths (B1 min): 500, 590, 650, 730
• Measurement convention: Dimensions are expressed in millimetres and reference the principal dimensions of hand‑operated stillage trucks as given in ISO 938.
• Compatibility focus: The standard ensures stillage-to-truck compatibility - preventing interference during insertion, lifting, and transport.

Applications

• Manufacturers of stillages, pallets and handling platforms use ISO 1756 to design products that fit hand‑operated elevating trucks.
• Lift truck and material‑handling equipment manufacturers reference the standard when specifying truck clearances and fork/frame profiles.
• Warehouse designers, logistics engineers and procurement teams use the standard to ensure equipment interoperability, reduce handling damage, and improve workplace safety.
• Safety and compliance officers rely on ISO 1756 when assessing ergonomic fit and mechanical clearance between handling equipment and load carriers.

Related standards

• ISO 938 - Hand‑operated stillage trucks - principal dimensions (referenced throughout ISO 1756).
• ISO 1756 replaces the earlier ISO Recommendation R 1756 (1970) and was issued by ISO Technical Committee responsible for industrial trucks.

Using ISO 1756 helps ensure consistent dimensions and compatibility between stillages and hand‑operated elevating trucks, reducing damage risk and improving operational efficiency in material‑handling environments.