ISO 1807:1975

Overview

ISO 1807:1975 - Continuous mechanical handling equipment for loose bulk materials - specifies the basic characteristics of oscillating conveyors and shaking or reciprocating feeders that use rectangular or trapezoidal troughs. The standard applies to troughs with either flat-bottom or dished-bottom profiles and defines geometric and physical parameters in metric units (millimetres).

Key topics and requirements

• Scope and field of application
  • Covers oscillating conveyors and shaking/reciprocating feeders with rectangular or trapezoidal trough cross-sections and with flat or dished bottoms.
• Geometrical specifications
  • Dimensions are given in millimetres.
  • Width of trough (b) is defined as the inside width of the bottom.
  • Height of trough (p) is the vertical distance from bottom to upper plane (as specified in the standard).
  • Length of trough (l) is the inside length of the bottom; preferred-number series (R5, R10, etc.) are referenced for nominal sizes.
  • The standard references ISO preferred number series (ISO 3) for selecting standard dimension values.
• Physical specifications
  • Defines ranges for oscillation frequency and oscillation distance. Frequencies for shaking/reciprocating movement are to be selected with regard to material flow, material characteristics, trough length and appliance type.
  • Example range provided: oscillations per minute from 60 to 600 (values to be chosen from the standard’s table).
  • Parameters assume a maximum angle of tilt (as noted in the standard) and recommend selection limits accordingly.
• Standards linkage
  • Cites ISO 3 (Preferred numbers) and is a technical output of ISO/TC 101. ISO 1807:1975 replaces ISO Recommendation R 1807-1970.

Applications

• Practical for designers, manufacturers and specifiers of bulk-handling equipment who need standardized trough geometries and motion parameters when selecting or designing:
  • Oscillating conveyors
  • Shaking or reciprocating feeders
• Typical uses include continuous mechanical handling of loose bulk materials where controlled feed rate and gentle conveying are required: mining and aggregates, food and grain handling, chemical and mineral processing, recycling and general material-handling plants.
• Useful for procurement teams and plant engineers to ensure compatibility, interchangeability and predictable performance when specifying feeders and conveyors.

Related standards

• ISO 3 - Preferred numbers (referenced for nominal trough dimensions)
• ISO/TC 101 - Technical committee responsible for continuous mechanical handling standards
• ISO 1807 replaces ISO Recommendation R 1807-1970

Keywords: ISO 1807:1975, oscillating conveyors, reciprocating feeders, bulk material handling, trough dimensions, oscillation frequency, flat-bottom trough, dished-bottom trough, ISO preferred numbers.