HALCYON MACHINERY — PAIRED Z-PURLIN LAP / HOLE TRIAL RECORD
2 October 2026 | Blank buyer working document

Proposed machine / configuration / supplier:
Trial date / witnesses / operator:
Section drawing number / revision:
Connection drawing number / revision / approving engineer:
Material grade / thickness / coating / coil or strip ID:
Recipe / tooling / punch-layout revision:
Agreed acceptance limits and inspection document:
Agreed instruments / datums / inspection method:

COPY FOR EACH IDENTIFIED PAIR OF PARTS
Piece A ID / Piece B ID:
Section sizes / cut lengths / handedness / intended lap orientation:
Specified lap detail and fasteners:
Agreed characteristic | specified limit | actual A | actual B | result:
Hole centres measured from agreed datums:
Section measurements and cut-end observations:
Observed paired fit / fastener positioning / guide or fixture used:
Forcing, rework or manual intervention required:
Photograph IDs showing part labels and orientation:
Accepted / unresolved / repeat required, with reason:

REPEAT CONDITIONS
Beginning / middle / end of agreed run:
Before and after size or recipe change:
Sample identities / changed settings / repeated measurements:
Untested sizes, thicknesses, hole layouts or connection details:
Required corrective action and repeat-trial date:
Buyer / supplier reviewer and date:

The engineer defines connection geometry, acceptance limits and structural design.
Do not invent a standard lap length or universal hole spacing.
Trial fit alone is not structural-capacity or installation approval.
Agree safe trial arrangements and contractual acceptance separately.