Fastening, Torque & Joint Assembly calculator

Rivet Cycle Time Calculator

Rivet cycle time depends on feeding, hole alignment, tool access, mandrel handling, set verification, and occasional rework. This calculator estimates the hours required to complete a riveting workload using a proven accepted-rivets-per-hour rate.

What this calculator does

  • Estimate riveting operation hours from rivets to set, accepted rivets per hour, and allowance for handling, checks, and rework.
  • Use it when scheduling blind rivets, solid rivets, self-piercing rivets, or orbital riveting in assembly production.
  • Converts rivet count, accepted setting rate, and allowance into scheduled riveting hours.

Formula used

  • Base riveting time = rivets to set ÷ accepted rivets set per hour
  • Required riveting time = base time × handling/check allowance factor

Inputs explained

  • Rivets to set: Count rivets required for the assembly or lot, including planned samples if they consume station time.
  • Accepted rivets set per hour: Use a measured rate for the rivet type, access, operator method, and tool used.
  • Handling, check, and rework allowance: Add time for hole alignment, tool approach, mandrel disposal, set checks, and drill-out or rework.

How to use the result

  • Use it to balance riveting stations, estimate labor, compare manual and automated rivet tools, or schedule rework.
  • It assumes holes, parts, and rivets are available; drilling, deburring, adhesive cure, or separate inspection steps must be planned separately.

Common questions

  • What is the rivet cycle time calculator for? It helps assembly, manufacturing, or quality teams turn rivets to set, accepted rivets set per hour, handling, check, and rework allowance into a planning result for a fastening or bolted-joint decision.
  • Which units should I use? Use one consistent basis for the scope being reviewed. The fields on this calculator use rivets, rivets per hour, and percent allowance; convert torque, force, time, cost, or count data before comparing results.
  • What should I verify before acting on the result? Confirm the entered rate reflects accepted rivets, not free cycling or ideal tool speed.
  • How should I use the result? Use required hours to staff the station, check takt feasibility, and decide whether a feeder, fixture, or automated riveter is justified.

Last reviewed 2026-05-12.