Insertion Rate as a Universal Productivity Metric
topic
Specific insertion rate in metres of weft per minute provides the technology-independent productivity metric calculated as picks per minute multiplied by reed width in metres, enabling direct comparison of fabric output between looms of different widths and speeds that picks per minute alone does not provide, with net insertion rate accounting for loom efficiency as the fraction of available time the loom actually weaves, converting gross speed to the production-relevant metric of actual fabric output per unit time.
Role
Enables objective productivity comparison between different loom technologies, widths, and operational scenarios by expressing output in terms of the woven fabric produced rather than the loom speed achieved, with net insertion rate being the metric that correctly reflects the actual production value of any weaving operation and that should be used rather than gross speed when comparing the production economics of different loom types or optimisation strategies.