Declared load-case screen
Vacuum holding force
Inputs
User-entered handled workpiece mass.
User-entered acceleration magnitude for the declared load case.
Choose the simplified vertical-normal or horizontal-transport relation.
Required only by the horizontal-transport relation; user must validate it by test.
User-entered force multiplier; not a prescribed safety factor.
Results
A wrong number here has physical consequences. Check the method and the boundary below before using this result, and have it reviewed by someone accountable for the design.
Weight componentW
98.1
Inertial force component
20
Vertical-lift base holding force
118.1
Multiplier-adjusted required holding force
177.15
FTH = m(g + a)M
A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.
Nearby: Trapezoidal motion · Reflected inertia · Pneumatic cylinder force · Clamp-force transfer
Method
Formula, when it applies, and when it does not
Calculate theoretical required holding force for a vertical lift or horizontal transport load case using mass, acceleration, friction, and multiplier.
FTH = m(g + a)M
When
- Declared worst load case
- User-entered multiplier
- Friction declared and validated by user
- No cup or system selection
Don’t
- This is a simplified theoretical holding-force requirement for the selected declared load case. It does not select suction cups, count cups, calculate cup area, infer surface quality, assess seal/leakage, prescribe a safety factor, validate friction, determine vacuum level, size pumps or ejectors, analyze moments, certify handling safety, or approve an end-of-arm tool. Validate the full worst-case handling sequence and system on the real workpiece.