

Drywall and ceiling projects often need several light-gauge lines on one site: partition studs, tracks, T-grid, furring, villa frames, and plaster angle beads.
They can serve the same building, but process steps and ratings must not be mixed. Start from the finished profile — not from a generic “keel” keyword.
Buyers who ask for one “keel machine” usually mean one of the seven families below. Clarifying early avoids wrong tooling, wrong thickness, and wrong punch maps on the proposal.
| Family | Typical output | Thickness context (documented) | Do not confuse with |
|---|---|---|---|
| C wall stud | Partition C studs (e.g. C50/75/100) | About 0.4–0.6 mm on multi-size class | Structural C purlin; villa C140 |
| U track | Top/bottom tracks (e.g. U50/75/100) | About 0.4–0.6 mm | Structural U channel ~2–3 mm |
| CU combined | C + U on one mill with changeover | About 0.5–1.0 mm recommended class; heavy CU separate | Two dedicated stud + track lines |
| Ceiling T-grid | Main T / Cross T | Example ~0.3 mm on 24–38 class | Partition studs; furring |
| Furring / hat / Ω | Secondary ceiling/wall channels | About 0.4–0.7 mm class | Structural hat/sigma |
| Villa LGS frame | Prefabricated house frames (e.g. C140) | About 0.7–1.4 mm; multi-station assembly punch | Drywall C50 stud mill |
| Angle bead / net | Perforated plaster corner bead | Example about 0.35–0.75 mm | C/U/T keel forming |
Use this map as a routing table only. Speed, kW, and punch details live on each family’s own encyclopedia page and proposal.
Partition jobs often pair C studs with U tracks; suspended ceilings often pair Main/Cross T with wall angle — still separate from plaster net bead or villa frames.
When in doubt, open the dedicated family page and copy only that family’s documented band.
A single building project may need three or more families. List them as separate line items on the RFQ so proposals stay comparable. Do not merge families into one parameter sheet.
No. Buy the family that matches the drawing, or a documented combined package (e.g. CU, or Main+Cross+wall-angle set).
No. T-grid makes Main/Cross T bars; furring/hat makes secondary channels — different tooling and parameters.
Villa frames use thicker strip and multi-station assembly punching. Drywall C50/75/100 packages are a different thickness and punch tier.
Often yes for gypsum partitions. Confirm whether one CU combined mill or two dedicated lines fits the changeover plan.
Boundary map only. Final ratings follow each family’s proposal. Commercial quotes and lead time are out of scope.