Gripper Sizing — Needle Gripper (Fabric/Composite)
Holding-force and sizing math for a needle gripper (fabric/composite) including acceleration and safety factor.
Porous materials defeat vacuum and limp ones defeat jaws — needle grippers skewer the ply at opposing angles instead. The per-needle force is fabric-specific (test it); distribute pairs around the perimeter or the ply folds itself out of the remaining needles.
Formula
Note: Planning-level engineering estimate — final robot selection, guarding layout and risk assessment must follow the integrator's calculations and a documented ISO 12100/10218 risk assessment.
Holding-force and sizing math for a needle gripper (fabric/composite) including acceleration and safety factor. A free industrial robot kinematics & cell design tool — no sign-up, no upload, instant results in your browser.
About Gripper Sizing — Needle Gripper (Fabric/Composite)
Gripper Sizing — Needle Gripper (Fabric/Composite) computes the governing relationship n = m(g+a)·SF / F_per_pair live as you type. Porous materials defeat vacuum and limp ones defeat jaws — needle grippers skewer the ply at opposing angles instead. The per-needle force is fabric-specific (test it); distribute pairs around the perimeter or the ply folds itself out of the remaining needles. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Gripper Sizing — Needle Gripper (Fabric/Composite)
- 1Enter your values — Ply/cut-piece mass, Peak acceleration, Hold force per needle pair, Safety factor (sensible defaults are pre-filled).
- 2Read the live results: Total hold force, Needle pairs required.
- 3Check the "with your numbers" line to see n = m(g+a)·SF / F_per_pair substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Gripper Sizing — Needle Gripper (Fabric/Composite)?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula n = m(g+a)·SF / F_per_pair with authoritative sources cited on the page (Schmalz — Vacuum handling calculation basics; Monkman et al., Robot Grippers (Wiley-VCH))
- ✓Porous materials defeat vacuum and limp ones defeat jaws — needle grippers skewer the ply at opposing angles instead.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the gripper sizing — needle gripper (fabric/composite) use?+
It evaluates n = m(g+a)·SF / F_per_pair, exactly as published. Sources: Schmalz — Vacuum handling calculation basics; Monkman et al., Robot Grippers (Wiley-VCH). The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Porous materials defeat vacuum and limp ones defeat jaws — needle grippers skewer the ply at opposing angles instead. Planning-level engineering estimate — final robot selection, guarding layout and risk assessment must follow the integrator's calculations and a documented ISO 12100/10218 risk assessment.
When is this calculator the right tool for the job?+
Holding-force and sizing math for a needle gripper (fabric/composite) including acceleration and safety factor. A free industrial robot kinematics & cell design tool. The per-needle force is fabric-specific (test it); distribute pairs around the perimeter or the ply folds itself out of the remaining needles. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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