Robotics & Automation worked example

EOAT Weight with gripper or vacuum cup assembly weight of 2 lb: a worked example

Suppose gripper or vacuum cup assembly weight falls to 2 lb. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate total EOAT weight at the tool center point by summing gripper body, jaws or cups, sensors and cables, and tool changer mass.

The inputs for this scenario

  • Gripper or vacuum cup assembly weight: 2 lb (the input this scenario stresses; the baseline uses 4)
  • Jaws, fingers, or tool plate weight: 3 lb (held at the documented default)
  • Sensors, cables, and dress pack weight: 1.5 lb (held at the documented default)
  • Tool changer or quick-change weight: 1.5 lb (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total EOAT weight = sum of gripper, jaws, sensors, and tool changer weights.
  • Total EOAT weight works out to 8 lb at these inputs, and this is the headline figure for the scenario.
  • Element 1 works out to 2 lb at these inputs.
  • Element 2 works out to 3 lb at these inputs.
  • Element 3 + 4 works out to 3 lb at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where gripper or vacuum cup assembly weight sits at 4 lb and the headline result is 10 lb, this scenario comes in 20% below the baseline at 8 lb.
  • It sums the four EOAT component weights into a total and reports an average component weight, giving the wrist-mounted mass the robot must carry before the part. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Total EOAT weight: 8 lb (headline result)
  • Element 1: 2 lb
  • Element 2: 3 lb
  • Element 3 + 4: 3 lb

Run it with your numbers

  • To rerun this with your own numbers, open the live EOAT Weight calculator, set gripper or vacuum cup assembly weight to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.